Colonic Carcinosarcoma: Report of a Rare Colorectal Malignancy and Review of Literature.

Colonic carcinosarcoma is an extremely rare tumor composed of mixed malignant epithelial and mesenchymal cells. Due to its rarity, its pathogenesis is poorly understood, and there are no specific guidelines for its treatment.

Special type breast carcinoma: Sebaceous carcinoma of the breast; A case report and review of literature.

Sebaceous carcinoma of the breast is an extremely rare tumor. To the best of our knowledge only 15 cases have been reported in literature. Herein, we report a case of sebaceous carcinoma of the breast and describe the histopathologic features of sebaceous carcinoma of the breast in an elderly female.