Simultaneous Primary Hodgkin's Lymphoma of the Sigmoid Colon and Papillary Thyroid Carcinoma in an HIV-Positive Patient.

Primary Hodgkin's lymphoma of the colon is a rare phenomenon previously only reported in patients with chronic diverticulitis or inflammatory bowel disease. Herein we report a case of primary Hodgkin's lymphoma of the sigmoid colon in an HIV-positive patient without a history of inflammatory bowel disease or chronic diverticulitis that was later complicated by the discovery of concurrent papillary thyroid carcinoma.