Composite Epstein-Barr Virus-Associated B-Cell Lymphoproliferative Disorder and Tubular Adenoma in a Rectal Polyp.
Composite tumors are formed when there is intermingling between two components of separate tumors seen histologically. Cases demonstrating composite tubular adenoma with other types of tumors in the colon are rare. Composite tubular adenomas with nonlymphoid tumors including carcinoids, microcarcinoids, and small cell undifferentiated carcinoma have been reported in the literature. The occurrence of composite lymphoma and tubular adenoma within the colorectal tract is extremely rare. Only three cases have been reported and include one case of mantle cell lymphoma and two cases of diffuse large B-cell lymphoma arising in composite tubular adenomas. We present the first case of composite Epstein-Barr virus-associated B-cell lymphoproliferative disorder and tubular adenoma in a rectal polyp with a benign endoscopic appearance.
Northwestern Memorial Hospital, Chicago, IL, USA.
Amy A
AA
Lo
Northwestern Memorial Hospital, Chicago, IL, USA.
Juehua
J
Gao
Northwestern Memorial Hospital, Chicago, IL, USA.
M Sambasivia
MS
Rao
Northwestern Memorial Hospital, Chicago, IL, USA g-yang@northwestern.edu.
Guang-Yu
GY
Yang
D000236:Adenoma / Q000150:complications / Q000473:pathology*; D000368:Aged; D001402:B-Lymphocytes / Q000473:pathology*; D020031:Epstein-Barr Virus Infections / Q000150:complications / Q000473:pathology*; D006801:Humans; D008232:Lymphoproliferative Disorders / Q000150:complications / Q000473:pathology*; D008297:Male; D011127:Polyps / Q000150:complications / Q000473:pathology*; D012004:Rectal Neoplasms / Q000150:complications / Q000473:pathology*
Epstein–Barr virus–associated lymphoproliferative disorder; colon; composite tumor; tubular adenoma