Brown Bowel Syndrome in a Middle-Aged Woman with Chronic Idiopathic Malabsorption

Figure 1

Histological picture of BBS. Small intestinal wall structure appears disrupted at low magnification (a). Closer examination reveals accumulation of brownish granules in the cytoplasm of smooth muscle cells, which occasionally degenerate appearing as single cells between muscle fibers (b). The epithelium, as well as the lamina propria, is normal (c).

(a)

(b)

(c)