Invasive carcinoma formed of irregular crowded and cribriform glands lined by stratified malignant columnar cells with lost mucigenic activity. Anaplasia and mitosis are moderate.
Polypoidal fungating tumors that bleed easily at a distance of 5-10 cm from anal verge.
Multiple soft tissue fragments collectively measured 1.2 cm, totally embedded in one cassette.
Rectal mass, endoscopic biopsy: