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Surgical Case Reports
Fig. 3 | Surgical Case Reports

Fig. 3

From: Arteriovenous malformation that caused prolapse of the colon and was treated surgically in an infant: a case report

Fig. 3

Histological sections. a Abnormally enlarged and ectatic vein in the submucosa extending into the subserosa (arrow head). Hematoxylin and eosin stain. b Arterial structure with internal elastic lamina and no smooth muscle layer (black arrow) joining a venous vessel with only a smooth muscle layer and no internal elastic lamina (white arrow) certifies the diagnosis of an arteriovenous malformation. The black arrow indicates the adventitia. Elastica van Gieson stain

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