Composite ALK‐negative anaplastic large cell lymphoma and follicular lymphoma involving jejunum and mesenteric lymph nodes.

This article discusses a rare case of composite lymphoma (CL) involving the coexistence of ALK-negative anaplastic large cell lymphoma (ALCL) and follicular lymphoma (FL) in the jejunum and mesenteric lymph nodes. The patient, a 59-year-old female, presented with persistent epigastric discomfort and underwent surgical resection of the tumor. Microscopic analysis revealed the presence of both ALCL and FL in the jejunum and lymph nodes. The patient received chemotherapy and showed no evidence of recurrence during follow-up. The article emphasizes the importance of considering CL in cases of indolent lymphomas and highlights the need for accurate diagnosis through histological and immunohistochemical analysis. [Extracted from the article]