Giant serosal cavernous hemangioma of the ileum: A case report and review of literature

Figure 1 Examinations and treatments related to the case. A: Pelvic computed tomography: Local thickening of the small bowel wall in the lower abdomen with punctate high-density foci, suggestive of a vascular lesion or tumor with calcifications; B: Hematoxylin and eosin staining (× 200): Diffuse proliferation of vascular structures; C and D: Immunohistochemistry (× 200), CD31 and CD34: Positive expression. CD31 is primarily expressed in mature vascular endothelial cells; CD34 is mainly expressed in immature vascular endothelial cells. Positivity for both markers indicates active angiogenesis in the lesion area; E and F: Gross specimen - a 15 cm lesion along the ileal serosa shows dark purple, rough, and irregular mucosa with a spongy appearance, consistent with hemangiomatous hyperplasia.