Synchronous Undifferentiated and Medullary Carcinomas of the Colon; Recurrence of Undifferentiated Colonic Carcinoma in the Peripancreatic Retroperitoneum. (1st October 2015) - Eliaszadeh, Shohreh; Hamedani, Farid Saei; Wiley, Elizabeth; Cabay, Robert; Groth, John