Transformation of hyperplastic polyps to ulcerated mucinous adenocarcinoma of the colon
Keywords:
COLON, MUCINOUS ADENOCARCINOMA, RADIOGRAPHY.Abstract
Introduction: colorectal cancer includes any type of colon cancer, rectum and appendix and many cases have their origin in an adenomatous polyp.
Objective: to describe the evolution of hyperplastic polyps to mucinous colon cancer through the analysis of a case where the imaging study contributed to its diagnosis and an accurate surgery.
Case report: 72 year-old female patient, who has been treated since 2012 because of hyperplastic colon polyps and chronic colitis. In 2014 she presented abdominal pain in the right flank, vomiting and diarrhea. Colonoscopy confirmed the existence of hyperplastic polyps in the cecum and rectum. The abdominal ultrasound scan showed a complex and solid mass in the hypochondrium and right flank, very close to the peritoneum, impressing a tumor lesion of the digestive tract. Intestinal transit radiography showed a filling defect in the cecum, infiltrating the ileocecal valve. In simple and proven multislice tomography performed by oral and intravenous route a tumor lesion occluding the light of cecum was observed, with hypercaptation of contrast in both phases. The colonoscopy confirmed an injury to the ileocecal valve and another at ascending colon level, both of dubious appearance and rectosigmoid polyps. Colonoscopy biopsy confirmed an ulcerated and infiltrating mucinous adenocarcinoma.
Conclusions: it has been proved that one of the origins of mucinous adenocarcinomas of colon originates from benign polyps and imaging studies are a useful tool in the staging of the tumor and the treatment to be followed.
COLON; MUCINOUS ADENOCARCINOMA; RADIOGRAPHY.
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