Rectal mucosa shows an invasive carcinoma formed of irregular glandular formations lined by several layers of columnar malignant cells with related desmoplastic exhibiting moderate anaplasia and mitosis. Stroma is fibrotic. Areas of necrosis are seen.
Rectosigmoid junction mass.
Soft tissue fragments collectively measured 1.2 cm, totally embedded.
Rectosigmoid mass, endoscopic biopsy :