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Surgical Case Reports
Fig. 5 | Surgical Case Reports

Fig. 5

From: A case of idiopathic myointimal hyperplasia of the mesenteric veins presenting with small bowel obstruction

Fig. 5

Microscopic findings: Active inflammation and fibrotic change are observed (a Hematoxylin and eosin staining, × 40). Thickening of the venous wall is observed (black arrow), and the veins seem more prominent than their accompanying arteries (arrowhead) and have a markedly narrowed lumen (b Hematoxylin and eosin staining, × 200). The elastin staining allows hyperplastic veins (arrow) to be distinguished from the normal arteries (arrowhead), which show a bilayer structure (internal and external elastic lamina) (c Elastica van Gieson staining, × 200)

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