Primary Follicular Lymphoma of the Duodenum with Erosions as Atypical Macroscopic Features
Figure 2
Histological findings of the biopsy samples. The initial biopsy specimens taken from the border of erosions contained small number of duodenal villi. Lymphoma cells were scanty, and therefore, the specimens were inadequate for pathological diagnosis ((a) hematoxylin and eosin staining, original magnification ×40). Second biopsy specimens taken from the peripheral whitish mucosa showed lymphoid follicles composed of small-to-medium-sized lymphoid cells ((b) hematoxylin and eosin staining, original magnification ×40). Lymphoma cells also infiltrated into the duodenal villi ((c) hematoxylin and eosin staining, original magnification ×200). Lymphoma cells were positive for CD10 ((d) original magnification ×40) and BCL2 staining ((e) original magnification ×40).
