Fig. 2
From: Colonic perineurioma (benign fibroblastic polyp): case report and review of the literature
Immunohistochemical findings. a Staining for EMA showed weak delicate staining in the stromal component compared to strong staining in the serrated crypts (original magnification 400×). b GLUT1 showed positive staining with pericryptic accentuation (original magnification 100×). c Moderate to strong staining was seen with collagen IV (original magnification 100×). d Staining for BRAF V600E showed cytoplasmic expression in serrated crypt epithelium but was negative in nonserrated crypts (nuclear staining only; uppermost crypt) and in the perineurial proliferation. The pigment in the lamina propria is hemosiderin (original magnification 200×)