Skin nonmelanocytic tumor
Vascular tumors
Hobnail hemangioma


Topic Completed: 1 July 2012

Revised: 9 September 2019

Copyright: 2003-2019, PathologyOutlines.com, Inc.

PubMed search: hobnail [title] hemangioma

Christopher S. Hale, M.D.
Page views in 2018: 2,242
Page views in 2019 to date: 2,296
Cite this page: Hale CS. Hobnail hemangioma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/skintumornonmelanocytichemangiomahobnail.html. Accessed October 17th, 2019.
Definition / general
  • Endothelial cells protrude into vessel lumina
Case reports
Clinical images
Images hosted on PathOut server:

Courtesy of Dr. Mark R. Wick

Microscopic (histologic) description
  • Proliferation of irregular dissecting vascular channels lined by plump endothelial cells
Microscopic (histologic) images
Images hosted on PathOut server:

Courtesy of Dr. Mark R. Wick:

Hobnail hemangioma


Targetoid hemosiderotic



Courtesy of Drs. Asmaa Gaber Abdou and Nancy Asaad, Menofiya University, Egypt:

Lower lip of female

Positive stains
Negative stains
Differential diagnosis
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