{"id":14610,"date":"2025-07-21T11:07:43","date_gmt":"2025-07-21T14:07:43","guid":{"rendered":"https:\/\/www.grupomedcof.com.br\/blog\/?p=14610"},"modified":"2026-01-30T11:45:22","modified_gmt":"2026-01-30T14:45:22","slug":"marco-azul-marinho-conscientizacao-sobre-o-cancer-colorretal","status":"publish","type":"post","link":"https:\/\/www.grupomedcof.com.br\/blog\/marco-azul-marinho-conscientizacao-sobre-o-cancer-colorretal\/","title":{"rendered":"Entenda as causas e os sintomas do C\u00e2ncer Colorretal"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637-1024x576.jpg\" alt=\"\" class=\"wp-image-36617\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637-1024x576.jpg 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637-300x169.jpg 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637-768x432.jpg 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637-1536x864.jpg 1536w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637-747x420.jpg 747w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637-150x84.jpg 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637-696x392.jpg 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637-1068x601.jpg 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/Blog-MedCof-2025-07-21T110601.637.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Imagem: Canva.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-o-que-e-o-cancer-colorretal\"><strong>O que \u00e9 o C\u00e2ncer Colorretal?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O <strong>c\u00e2ncer colorretal<\/strong> \u00e9 um tumor maligno que se desenvolve no intestino grosso (c\u00f3lon) ou no reto. Muitas vezes, come\u00e7a com pequenos p\u00f3lipos, que podem se transformar em c\u00e2ncer ao longo do tempo. A detec\u00e7\u00e3o precoce e a remo\u00e7\u00e3o desses p\u00f3lipos s\u00e3o cruciais para prevenir a progress\u00e3o da doen\u00e7a.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfmt9zxxRbhcExrg6BEGA_WKO8qiNU8CUxbP1-yzpX2vcMqRPfIdxJ4VngPUKHY5MXaNZy7nU8MdsBnhwbEiHPl2Kb4NAIpYzP_Q6G1it5EXiHfZ8ogqbs3Gh73Sj5haVzUA5YrIg?key=mq-qumP8UavJt4w6CWdQIwIV\" alt=\"Sequ\u00eancia carcinog\u00eanica epitelial com finaliza\u00e7\u00e3o de muta\u00e7\u00e3o na telomerase. Fonte: Acervo de Ilustra\u00e7\u00f5es do Grupo MedCof.\"\/><figcaption class=\"wp-element-caption\">Sequ\u00eancia carcinog\u00eanica epitelial com finaliza\u00e7\u00e3o de muta\u00e7\u00e3o na telomerase. Fonte: Acervo de Ilustra\u00e7\u00f5es do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-fatores-de-risco-e-prevencao-do-cancer-colorretal\"><strong>Fatores de Risco e Preven\u00e7\u00e3o<\/strong> <strong>do C\u00e2ncer Colorretal<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Diversos fatores podem aumentar o risco de desenvolver c\u00e2ncer colorretal, incluindo:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Idade:<\/strong> A maioria dos casos ocorre em pessoas com mais de 45 anos;<\/li>\n\n\n\n<li><strong>Hist\u00f3rico Familiar:<\/strong> Ter parentes de primeiro grau com CCR aumenta o risco;<\/li>\n\n\n\n<li><strong>Dieta:<\/strong> Uma dieta pobre em fibras e rica em alimentos processados est\u00e1 associada a um maior risco;<\/li>\n\n\n\n<li><strong>Estilo de Vida<\/strong>: Sedentarismo, tabagismo, etilismo e obesidade s\u00e3o fatores de risco modific\u00e1veis;<\/li>\n\n\n\n<li><strong>Doen\u00e7as Inflamat\u00f3rias Intestinais:<\/strong> Retocolite ulcerativa e doen\u00e7a de Crohn aumentam o risco;<\/li>\n\n\n\n<li><strong>S\u00edndromes Heredit\u00e1rias:<\/strong> Polipose adenomatosa familiar (PAF) e s\u00edndrome de Lynch s\u00e3o condi\u00e7\u00f5es gen\u00e9ticas que aumentam drasticamente o risco.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>preven\u00e7\u00e3o envolve a ado\u00e7\u00e3o de h\u00e1bitos saud\u00e1veis, <\/strong>como uma <strong>dieta rica em fibras, pr\u00e1tica regular de exerc\u00edcios f\u00edsicos, evitar o tabagismo <\/strong>e o <strong>consumo excessivo de \u00e1lcool,<\/strong> e <strong>manter um peso saud\u00e1vel.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De acordo com o Dr. <strong>Juan Perez<\/strong>, Cirurgi\u00e3o do Aparelho Digestivo pela USP-SP, o <strong>c\u00e2ncer colorretal<\/strong> apresenta <strong>alternativas para preven\u00e7\u00e3o e diagn\u00f3stico precoce<\/strong>, tamb\u00e9m denominadas de rastreio, diferentemente da maioria dos tumores.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quando adequadamente realizado, permite a detec\u00e7\u00e3o de les\u00f5es em fases anteriores a se tornarem c\u00e2ncer e, em casos de tumores malignos, permite o diagnostico precoce permitindo inclusive ressec\u00e7\u00f5es pela pr\u00f3pria endoscopia sem necessidade de cirurgia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O <strong>rastreio \u00e9 realizado atrav\u00e9s de exames espec\u00edficos<\/strong>, sendo que a sua pr\u00e1tica \u00e9 capaz de aumentar a sobrevida e a cura de 50% dos casos para valores acima de 90% ao longo de 5 anos. Ainda, ele ressalta que apesar de algumas diverg\u00eancias na literatura, <strong>recomenda-se o inicio do rastreio aos 50 anos <\/strong>(cada vez mais sendo recomendado o rastreio mais precoce, com inicio aos 45 anos) atrav\u00e9s de algum dos m\u00e9todos que descreveremos na sequ\u00eancia.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-como-ocorre-o-rastreamento-do-cancer-colorretal\"><strong>Como ocorre o rastreamento do C\u00e2ncer Colorretal?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O rastreamento \u00e9 a ferramenta mais eficaz para detectar o c\u00e2ncer colorretal em est\u00e1gios iniciais, quando as chances de cura s\u00e3o maiores. As principais op\u00e7\u00f5es de rastreamento incluem:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Colonoscopia:<\/strong> Exame que permite visualizar todo o c\u00f3lon e remover p\u00f3lipos. Recomenda-se a cada 10 anos para pessoas com risco m\u00e9dio;<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXc6CER59sRVxlEAtoJoPMFBGGrPRRWGgcLiHmXgUJq92KEbEl9kjyPJKZDamZa2F3poJqrGD7in64UeD8TSaRAuqr83gyxZW2Yq6thZHvblMxYoHd2fAHb7tWoOA3ck3jSnDd8-0Q?key=mq-qumP8UavJt4w6CWdQIwIV\" alt=\"\"\/><figcaption class=\"wp-element-caption\">Imagem real e b. Imagem virtual de colonoscopia. Fonte: <a href=\"https:\/\/endoscopiaterapeutica.com.br\/\">https:\/\/endoscopiaterapeutica.com.br\/<\/a>&nbsp;<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Teste Imunoqu\u00edmico Fecal (TIF):<\/strong> Detecta sangue oculto nas fezes, indicando a necessidade de investiga\u00e7\u00e3o adicional. Deve ser feito anualmente;<\/li>\n\n\n\n<li><strong>Sigmoidoscopia:<\/strong> Exame que visualiza apenas a parte inferior do c\u00f3lon. Pode ser combinada com o TIF;<\/li>\n\n\n\n<li><strong>Colonografia por Tomografia Computadorizada (CTC):<\/strong> Tamb\u00e9m conhecida como colonoscopia virtual;<\/li>\n\n\n\n<li><strong>Teste de DNA Fecal:<\/strong> Analisa o DNA das fezes para detectar sinais de c\u00e2ncer ou p\u00f3lipos.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-sintomas-e-sinais-de-alerta\"><strong>Sintomas e Sinais de Alerta<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Estar atento aos sintomas \u00e9 fundamental. Alguns sinais de alerta incluem <strong>mudan\u00e7a persistente nos h\u00e1bitos intestinais <\/strong>(diarreia ou constipa\u00e7\u00e3o), <strong>sangramento retal <\/strong>ou <strong>sangue nas fezes<\/strong>, <strong>desconforto abdominal frequente,<\/strong> como gases, incha\u00e7o, c\u00f3licas ou dor, sensa\u00e7\u00e3o de que o intestino n\u00e3o se esvazia completamente, <strong>fraqueza ou fadiga inexplic\u00e1vel <\/strong>e <strong>perda de peso sem motivo aparente.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXcBhL5Kvhm7zDSvFjVzrbN1JlrU4trNJcts19VH_JKfs3eDc5ODiWtZMewLwFkpYtRVuoM5D82YA08y4bx5Fn7Az498iCUbv5ItJJDLvD8E1XP-NPR7GE0R82EMrEG382eMPN7qYA?key=mq-qumP8UavJt4w6CWdQIwIV\" alt=\"Probabilidade de localiza\u00e7\u00e3o da neoplasia. Fonte: Acervo de Ilustra\u00e7\u00f5es do Grupo MedCof.\"\/><figcaption class=\"wp-element-caption\">Probabilidade de localiza\u00e7\u00e3o da neoplasia. | Fonte: Acervo de Ilustra\u00e7\u00f5es do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-como-tratar-o-cancer-colorretal\"><strong>Como tratar o C\u00e2ncer Colorretal?<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">O tratamento do c\u00e2ncer colorretal <strong>depende do est\u00e1gio da doen\u00e7a<\/strong> e <strong>pode incluir cirurgia<\/strong>, <strong>quimioterapia, radioterapia e terapias-alvo<\/strong>. A cirurgia \u00e9 geralmente o primeiro passo, com o objetivo de remover o tumor e os linfonodos pr\u00f3ximos.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXf1p5ec0LPdGF6753XjR7yjGQDo-njyme_nUtOdKzA4DUbehs0lKF1LU11lBJNqopP5Rvqd8uWmRMcC0x2DDSFcz_-vBAeqlE0VxtNWnRfpLQW1VNsC2sxja6KZPnkQi89Lae2P4A?key=mq-qumP8UavJt4w6CWdQIwIV\" alt=\"Localiza\u00e7\u00e3o linfocit\u00e1ria na \u00e1rea. Fonte: Acervo de Ilustra\u00e7\u00f5es do Grupo MedCof.\"\/><figcaption class=\"wp-element-caption\">Localiza\u00e7\u00e3o linfocit\u00e1ria na \u00e1rea. | Fonte: Acervo de Ilustra\u00e7\u00f5es do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"h-campanha-de-conscientizacao-nbsp-0\"><strong>Campanha de Conscientiza\u00e7\u00e3o&nbsp;<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O m\u00eas de mar\u00e7o ganha uma nova cor e um prop\u00f3sito vital: o <strong>Mar\u00e7o Azul Marinho,<\/strong> dedicado \u00e0 conscientiza\u00e7\u00e3o sobre o<strong> c\u00e2ncer colorretal<\/strong> (CCR). Esta campanha, que se estende por todo o m\u00eas, visa informar, educar e promover a preven\u00e7\u00e3o e o diagn\u00f3stico precoce desta doen\u00e7a que afeta milhares de pessoas em todo o mundo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-importancia-da-conscientizacao\"><strong>Import\u00e2ncia da Conscientiza\u00e7\u00e3o<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A conscientiza\u00e7\u00e3o \u00e9 a <strong>chave<\/strong> para <strong>combater<\/strong> o c\u00e2ncer colorretal. Informar a popula\u00e7\u00e3o sobre os fatores de risco, os sintomas e as op\u00e7\u00f5es de rastreamento pode levar a diagn\u00f3sticos mais precoces e, consequentemente, a melhores resultados no tratamento.<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-sindromes-hereditarias-do-cancer-colorretal\"><strong>S\u00edndromes Heredit\u00e1rias do C\u00e2ncer Colorretal<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cerca de<strong> 5% a 10% dos casos de C\u00e2ncer Colorretal<\/strong> ocorrem em contexto heredit\u00e1rio. O reconhecimento dessas s\u00edndromes n\u00e3o apenas previne o c\u00e2ncer no paciente \u00edndice, mas desencadeia o rastreamento de familiares em risco (&#8220;cascata gen\u00e9tica&#8221;).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-polipose-adenomatosa-familiar\"><strong>Polipose Adenomatosa Familiar<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>Polipose Adenomatosa Familiar<\/strong> \u00a0\u00e9 causada por uma muta\u00e7\u00e3o germinativa no gene <strong>APC<\/strong> (<em>Adenomatous Polyposis Coli<\/em>), um gene supressor de tumor localizado no cromossomo 5q21.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-fisiopatologia-e-clinica\"><strong>Fisiopatologia e Cl\u00ednica<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Penetr\u00e2ncia:<\/strong> Completa (100%). Quem tem o gene, ter\u00e1 a doen\u00e7a.<\/li>\n\n\n\n<li><strong>Fen\u00f3tipo Cl\u00e1ssico:<\/strong> Desenvolvimento de centenas a milhares (>100) de p\u00f3lipos adenomatosos no c\u00f3lon e reto, geralmente iniciando na adolesc\u00eancia.<\/li>\n\n\n\n<li><strong>Hist\u00f3ria Natural:<\/strong> A progress\u00e3o para adenocarcinoma \u00e9 inevit\u00e1vel (100% de risco) por volta dos 40 anos se n\u00e3o houver interven\u00e7\u00e3o cir\u00fargica.<\/li>\n\n\n\n<li><strong>Manifesta\u00e7\u00f5es Extrac\u00f3licas (S\u00edndrome de Gardner):<\/strong> A muta\u00e7\u00e3o no gene APC tamb\u00e9m predisp\u00f5e a crescimentos anormais em outros tecidos.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"596\" height=\"264\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2.png\" alt=\"\" class=\"wp-image-41263\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2.png 596w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-300x133.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-150x66.png 150w\" sizes=\"auto, (max-width: 596px) 100vw, 596px\" \/><figcaption class=\"wp-element-caption\">Manifesta\u00e7\u00f5es da s\u00edndrome de Gardner. Fonte:\u00a0 <a href=\"http:\/\/www.radiopaedia.org\">www.radiopaedia.org<\/a>\u00a0<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Osteomas (mand\u00edbula).<\/li>\n\n\n\n<li>Tumores Desmoides (origem no tecido conjuntivo, benignos, mas localmente agressivos e recidivantes, frequentemente desencadeados por trauma cir\u00fargico).<\/li>\n\n\n\n<li>Cistos epidermoides e Dentes supranumer\u00e1rios.<\/li>\n\n\n\n<li>Hipertrofia cong\u00eanita do epit\u00e9lio pigmentar da retina (CHRPE).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"354\" height=\"396\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-3.png\" alt=\"\" class=\"wp-image-41264\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-3.png 354w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-3-268x300.png 268w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-3-150x168.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-3-300x336.png 300w\" sizes=\"auto, (max-width: 354px) 100vw, 354px\" \/><figcaption class=\"wp-element-caption\">Polipose g\u00e1strica em paciente com PAF. Imagens mostram in\u00fameros p\u00f3lipos em c\u00e1rdia, fundo, corpo e antro. Fonte: <a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/assuntosgerais\/cancer-gastrico-hereditario\/?print=print\">https:\/\/endoscopiaterapeutica.net\/pt\/assuntosgerais\/cancer-gastrico-hereditario\/?print=print<\/a>\u00a0<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"552\" height=\"392\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-4.png\" alt=\"\" class=\"wp-image-41265\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-4.png 552w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-4-300x213.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-4-150x107.png 150w\" sizes=\"auto, (max-width: 552px) 100vw, 552px\" \/><figcaption class=\"wp-element-caption\">CHRPE. Fonte: <a href=\"https:\/\/dradrianhernandez.es\/chrpe\/\">https:\/\/dradrianhernandez.es\/chrpe\/<\/a>\u00a0<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-rastreamento-e-manejo\"><strong>Rastreamento e Manejo<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Colonoscopia:<\/strong> Iniciar aos <strong>10-12 anos<\/strong> (ou retossigmoidoscopia), repetindo anualmente.<\/li>\n\n\n\n<li><strong>EDA:<\/strong> Iniciar aos 20-25 anos para rastreio de adenomas duodenais e p\u00f3lipos de gl\u00e2ndulas f\u00fandicas.<\/li>\n\n\n\n<li><strong>Quimiopreven\u00e7\u00e3o:<\/strong> O uso de AINEs (Celecoxib ou AAS) pode reduzir a forma\u00e7\u00e3o de novos p\u00f3lipos, sendo \u00fatil no p\u00f3s-operat\u00f3rio de cirurgias com preserva\u00e7\u00e3o do reto.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-tratamento-cirurgico\"><strong>Tratamento Cir\u00fargico<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">A cirurgia \u00e9 profil\u00e1tica, indicada preferencialmente entre <strong>15-20 anos<\/strong>. Existem duas t\u00e9cnicas principais:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Proctocolectomia Total com Bolsa Ileal em &#8220;J&#8221;:<\/strong> Remove todo o c\u00f3lon e reto. Necessita de ileostomia de prote\u00e7\u00e3o tempor\u00e1ria. \u00c9 a escolha padr\u00e3o para eliminar o risco de c\u00e2ncer retal.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"448\" height=\"360\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-5.png\" alt=\"\" class=\"wp-image-41266\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-5.png 448w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-5-300x241.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-5-150x121.png 150w\" sizes=\"auto, (max-width: 448px) 100vw, 448px\" \/><figcaption class=\"wp-element-caption\">Fonte: Acervo de aulas do Grupo MedCof.\u00a0<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-colectomia-total-com-ileorretoanastomose\"><strong>Colectomia Total com Ileorretoanastomose<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Preserva o reto. Indicada apenas se houver poucos p\u00f3lipos retais (&lt;10) e possibilidade de seguimento rigoroso.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"459\" height=\"524\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-6.png\" alt=\"\" class=\"wp-image-41267\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-6.png 459w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-6-263x300.png 263w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-6-368x420.png 368w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-6-150x171.png 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-6-300x342.png 300w\" sizes=\"auto, (max-width: 459px) 100vw, 459px\" \/><figcaption class=\"wp-element-caption\">Fonte: Acervo de aulas do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-sindrome-de-lynch-hnpcc\"><strong>S\u00edndrome de Lynch (HNPCC)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 a s\u00edndrome de c\u00e2ncer colorretal heredit\u00e1rio mais comum. Caracteriza-se pela instabilidade de microssat\u00e9lites (MSI) devido a falhas no sistema de reparo do DNA.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-genetica-e-risco-oncologico\"><strong>Gen\u00e9tica e Risco Oncol\u00f3gico<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Genes Envolvidos:<\/strong> <em>MLH1, MSH2, MSH6, PMS2<\/em>.<\/li>\n\n\n\n<li><strong>Carcinog\u00eanese Acelerada:<\/strong> A sequ\u00eancia adenoma-carcinoma \u00e9 muito r\u00e1pida na S\u00edndrome de Lynch, diferentemente do CCR espor\u00e1dico.<\/li>\n\n\n\n<li><strong>Localiza\u00e7\u00e3o:<\/strong> Predomin\u00e2ncia de tumores no <strong>c\u00f3lon direito<\/strong>.<\/li>\n\n\n\n<li><strong>Neoplasias Extrac\u00f3licas:<\/strong> O risco \u00e9 aumentado significativamente para carcinoma de <strong>endom\u00e9trio<\/strong>, ov\u00e1rio, est\u00f4mago, intestino delgado, trato urin\u00e1rio (ureter\/pelve renal) e sistema nervoso central (gliomas).<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-diagnostico-criterios-de-amsterdam-regra-3-2-1-1\"><strong>Diagn\u00f3stico: Crit\u00e9rios de Amsterdam (Regra 3-2-1-1)<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Para diagn\u00f3stico cl\u00ednico, todos os crit\u00e9rios devem ser preenchidos:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"585\" height=\"444\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-7.png\" alt=\"\" class=\"wp-image-41268\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-7.png 585w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-7-300x228.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-7-553x420.png 553w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-7-80x60.png 80w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-7-150x114.png 150w\" sizes=\"auto, (max-width: 585px) 100vw, 585px\" \/><figcaption class=\"wp-element-caption\">Crit\u00e9rios de Amsterda. Fonte: Acervo de aulas do Grupo MedCof.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-terapeutica-e-imunoterapia\"><strong>Terap\u00eautica e Imunoterapia<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cirurgia:<\/strong> Diante de um CCR, a conduta padr\u00e3o \u00e9 a <strong>Colectomia Total<\/strong> com ileorretoanastomose, devido ao alto risco de tumores metacr\u00f4nicos (novos tumores prim\u00e1rios no c\u00f3lon remanescente).<\/li>\n\n\n\n<li><strong>Terapia Alvo (Imunoterapia):<\/strong> Tumores com instabilidade de microssat\u00e9lites respondem bem aos inibidores de <em>checkpoint<\/em> imune (anti-PD1). Drogas como <strong>Pembrolizumab<\/strong>, <strong>Nivolumab<\/strong> e Ipilimumab s\u00e3o indicadas em doen\u00e7as metast\u00e1ticas ou refrat\u00e1rias \u00e0 quimioterapia convencional.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-sindromes-hamartomatosas\"><strong>S\u00edndromes Hamartomatosas<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Caracterizam-se pela presen\u00e7a de p\u00f3lipos hamartomatosos (tecido desorganizado, mas pr\u00f3prio do local).<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"819\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-1024x819.jpeg\" alt=\"\" class=\"wp-image-41269\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-1024x819.jpeg 1024w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-300x240.jpeg 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-768x614.jpeg 768w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-525x420.jpeg 525w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-150x120.jpeg 150w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-696x557.jpeg 696w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2-1068x854.jpeg 1068w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-2.jpeg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">P\u00f3lipo Hamartomatoso juvenil. Fonte: <a href=\"https:\/\/endoscopiaterapeutica.net\/pt\/casosclinicos\/polipo-hamartomatoso-juvenil-solitario-pediatrico-relato-de-caso-e-revisao-de-literatura\/\">https:\/\/endoscopiaterapeutica.net\/pt\/casosclinicos\/polipo-hamartomatoso-juvenil-solitario-pediatrico-relato-de-caso-e-revisao-de-literatura\/<\/a>\u00a0<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-sindrome-de-peutz-jeghers\"><strong>S\u00edndrome de Peutz-Jeghers<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gene:<\/strong> <em>STK11<\/em> (Autoss\u00f4mica Dominante).<\/li>\n\n\n\n<li><strong>P\u00f3lipos:<\/strong> Hamartomas gigantes, principalmente no <strong>intestino delgado<\/strong> (jejuno), podendo causar intussuscep\u00e7\u00e3o e obstru\u00e7\u00e3o na inf\u00e2ncia.<\/li>\n\n\n\n<li><strong>Sinal Patognom\u00f4nico:<\/strong> Melanose (manchas caf\u00e9-com-leite) em l\u00e1bios e mucosa oral.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"641\" height=\"448\" src=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-8.png\" alt=\"\" class=\"wp-image-41270\" srcset=\"https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-8.png 641w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-8-300x210.png 300w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-8-601x420.png 601w, https:\/\/www.grupomedcof.com.br\/blog\/wp-content\/uploads\/2025\/07\/image-8-150x105.png 150w\" sizes=\"auto, (max-width: 641px) 100vw, 641px\" \/><figcaption class=\"wp-element-caption\">Mucosa oral com presen\u00e7a de les\u00e3o melanoc\u00edtica. Fonte: ANDRADE, Aderivaldo Coelho de et al. S\u00edndrome de Peutz-Jeghers: relato de caso. Rev. Col. Bras. Cir. [online]. 2008, vol.35, n.3 [cited 2020-08-30], pp.210-211. Available from: . ISSN 1809-4546. https:\/\/doi.org\/10.1590\/S0100- 69912008000300015.C\u00a0<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Risco de C\u00e2ncer:<\/strong> Elevado para TGI, mama, p\u00e2ncreas, test\u00edculo e colo uterino (adenoma maligno).<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>S\u00edndrome de Cowden<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gene:<\/strong> <em>PTEN<\/em>.<\/li>\n\n\n\n<li><strong>Associa\u00e7\u00f5es:<\/strong> P\u00f3lipos gastrointestinais m\u00faltiplos + risco elevado de <strong>C\u00e2ncer de Mama<\/strong> e <strong>Tireoide<\/strong> (folicular\/papil\u00edfero) + Tricolemomas faciais.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>S\u00edndrome de Cronkite-Canada<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Diferencial Importante:<\/strong> \u00c9 uma s\u00edndrome <strong>adquirida<\/strong> (n\u00e3o heredit\u00e1ria), afetando idosos.<\/li>\n\n\n\n<li><strong>Tr\u00edade Ectod\u00e9rmica:<\/strong> Alopecia (queda de cabelo), Onicodistrofia (unhas fracas) e Hiperpigmenta\u00e7\u00e3o cut\u00e2nea.<\/li>\n\n\n\n<li><strong>Cl\u00ednica:<\/strong> Diarreia cr\u00f4nica com enteropatia perdedora de prote\u00ednas e desnutri\u00e7\u00e3o grave.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-polipose-associada-ao-mutyh-map\"><strong>Polipose Associada ao MUTYH (MAP)<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 a principal s\u00edndrome de heran\u00e7a <strong>Autoss\u00f4mica Recessiva<\/strong> (bial\u00e9lica). O fen\u00f3tipo \u00e9 de uma &#8220;PAF Atenuada&#8221;.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Quadro:<\/strong> Paciente com 10 a 100 p\u00f3lipos adenomatosos, mas com teste gen\u00e9tico para APC negativo. Deve-se solicitar a pesquisa do gene <em>MUTYH<\/em>.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Seja um MedCofer!<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Quer alcan\u00e7ar a aprova\u00e7\u00e3o nas provas de resid\u00eancia m\u00e9dica? Ent\u00e3o seja um\u00a0<a href=\"https:\/\/www.grupomedcof.com.br\/home\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>MedCofer<\/strong><\/a>! Aqui te ajudaremos na busca da aprova\u00e7\u00e3o com conte\u00fados de qualidade e uma metodologia que j\u00e1 aprovou mais de 35 mil residentes no pa\u00eds! Por fim, acesse o nosso<a href=\"https:\/\/www.youtube.com\/@GrupoMedcof\/featured\">\u00a0<strong>canal do youtube\u00a0<\/strong><\/a>para ver o nosso material.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"youtube-embed\" data-video_id=\"I4DBmdB1JeQ\"><iframe loading=\"lazy\" title=\"COFEXPRESS - Coloproctologia: Tudo sobre o C\u00e2ncer Colorretal. Com Dr. Felipe Fernandes\" width=\"696\" height=\"392\" src=\"https:\/\/www.youtube.com\/embed\/I4DBmdB1JeQ?feature=oembed&#038;enablejsapi=1\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>O m\u00eas de mar\u00e7o ganha uma nova cor e um prop\u00f3sito vital: o Mar\u00e7o Azul Marinho, dedicado \u00e0 conscientiza\u00e7\u00e3o sobre o c\u00e2ncer colorretal (CCR). Entenda!<\/p>\n","protected":false},"author":21,"featured_media":36617,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70,74],"tags":[2771,112,68],"ppma_author":[3617],"class_list":["post-14610","post","type-post","status-publish","format-standard","has-post-thumbnail","category-coloproctologia","category-oncologia","tag-marco-azul-marinho","tag-oncologia","tag-residencia-medica"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Entenda as causas e os sintomas do C\u00e2ncer Colorretal - Blog de Medcof: conte\u00fados, editais, revalida e mais!<\/title>\n<meta name=\"description\" content=\"O m\u00eas de mar\u00e7o ganha uma nova cor e um prop\u00f3sito vital: o Mar\u00e7o Azul Marinho, dedicado \u00e0 conscientiza\u00e7\u00e3o sobre o c\u00e2ncer colorretal (CCR). 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