Fig. 1
From: Inflammatory and infectious manifestations of immunodeficiency in the gastrointestinal tract

A colonic biopsy sample from a patient with common variable immunodeficiency shows a paucicellular lamina propria that contains a minute epithelioid granuloma (arrow) a. Numerous apoptotic bodies are present in the deep crypt regions, and the lamina propria displays an absence of plasma cells b. (Hematoxylin and eosin; original magnification: × 100 a; × 400 b)