The “Endothelialized Muscularis Mucosae”: A Case Report Describing a Large Cavernous Hemangioma at the Terminal Ileum and a New Histologic Clue for Preoperative Diagnosis from Endoscopic Biopsy

Figure 6

Histologic review of the original endoscopic biopsy revealed the so-called “endothelialized muscularis mucosae” characterized by a second layer of fibromuscular tissue (long, fine arrow) apposed to the muscularis mucosae (short, thick arrow) (histology of endoscopic biopsy, with arrows).