Soft tissue
Vascular
Benign
Hemangioma
Author: Vijay Shankar, M.D.
Topic Completed: 1 November 2012
Minor changes: 14 September 2020
Copyright: 2002-2021, PathologyOutlines.com, Inc.
PubMed search: soft tissue [title] hemangioma
Cite this page: Shankar V. Hemangioma. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/softtissuehemangioma.html. Accessed March 8th, 2021.
Definition / general
- Common benign tumor, particularly in childhood; some may be hamartomas
- Usually superficial (head / neck), may occur internally (1 / 3 in liver), malignant transformation rare
- Usually localized, but may involve large segments of body (termed angiomatosis)
- Most pediatric angiomas are present at birth and expand with growth of child; may regress at puberty
Microscopic (histologic) description
- Increased number of vessels (normal / abnormal)
- Readily recognizable vascular structures with red blood cells or transudate
- Lined by monolayer of non atypical endothelial cells
