FRCPath Part 2 Surgical Course: Lower GI Pathology Case No.
Diagnosis
Case GP1
Small intestinal GIST with skeinoid fibres.
Case GP2
Typical ileal pouch changes – so-called adaptive changes. This is not ‘pouchitis’.
Case GP3
Fibromatosis/desmoid tumour.
Case GP4
Low grade appendiceal mucinous tumour (LAMN) with rupture and serosal involvement.
Case GP5
Neuro-endocrine tumour (? carcinoma – yes, I think so….) of the appendix with adverse prognostic features.
Case GP 6
Chronic inflammatory bowel disease in keeping with chronic ulcerative colitis in a ‘proctitis’ (or strictly ‘distal colitis’) distribution.
Case GP 7
Collagenous colitis.
Case GP 8
Diverticular colitis.
Case GP 9
Equivocal for CIBD and more chronic infective-type colitis.
Case GP 10
Chronic inflammatory bowel disease favouring ulcerative colitis.
Case GP 11
Chronic inflammatory bowel disease favouring ulcerative colitis with epithelial changes either reactive or ‘mucosa indefinite for dysplasia’.
Case GP 12
Sessile serrated lesion with dysplasia.
Case GP 13
Sigmoid colonic adenoma with epithelial misplacement.
Case GP 14
Leiomyoma (or smooth muscle tumour….) of the muscularis propria and ‘mixed’ polyp with classical adenoma and (traditional) serrated adenoma.
Case GP 15
Post-inflammatory polyp.
Case GP 16
Atypical juvenile polyp.
Case GP 17
Low grade lymphoma. This is actually mantle cell lymphoma.
Case GP 18
Serrated-type adenocarcinoma, diverticular disease with adenoma and carcinoma involving a diverticulum and malakoplakia.
Case GP 19
Combination of ulcerative colitis and diversion proctitis causing mimicry of Crohn’s disease.
Case GP 20
Inflammatory cloacogenic polyp.