Fig. 3From: Diagnosis and management of intercostal intramuscular hemangioma: an updated reviewHistopathological findings of surgical specimen. Hematoxylin-eosin staining reveals proliferation of small blood vessels (a). Tumor cells are positive for CD31 (b) and CD34 (c). Immunostaining of Ki-67 shows a low proliferative rate (< 1%) (d)Back to article page