Case 2
74 M. Right sided abdominal pain and weight loss. Upon colonoscopy polyps were found at flexura lienalis and in the sigma and rectum. (Your slide is from the sigma)
Case 3
70 F. Two years ago colonoscopy was performed. Multiple polyps were identified of which five showed hyperplastic morphology and one was tubular adenoma with mild dysplasia. Four weeks ago a control colonoscopy was performed in which adenocarcinoma of the transverse colon was diagnosed along with multiple polyps throughout the colon. Enclosed is the colectomy specimen.
(A representative specimen of the adenocarcinoma is shown. Please suggest the nature/type of the carcinoma and are there any indication for further studies of the specimen)
Case 6
59 F. Anal incontinence. Rectal palpation revealed a resistance and MRI shows a dorsal 3-4 cm tumor (probably benign?). Tumor was operated via rectum and was apparently removed completely with the surrounding capsule. A small portion of the tumor tissue seemed to ulcerate rectal mucosa. What is the nature of the lesion?
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