Soft tissue
Benign vascular tumors
Hemangioma and variants




Topic Completed: 1 November 2012

Revised: 27 March 2019

Copyright: 2002-2018, PathologyOutlines.com, Inc.

PubMed search: soft tissue [title] hemangioma

Related topics: anastomosing, capillary, cavernous, intramuscular, large vessel, microvenular, pyogenic granuloma, symplastic

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Cite this page: Shankar V. Hemangioma and variants. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/softtissuehemangioma.html. Accessed June 16th, 2019.
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
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