Salivary glands
Sarcomas
Hemangioendothelioma


Topic Completed: 1 September 2012

Revised: 22 March 2019

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

PubMed Search: Hemangioendothelioma salivary

Adriana Handra-Luca, M.D.
Page views in 2018: 460
Page views in 2019 to date: 335
Cite this page: Handra-Luca A Hemangioendothelioma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/salivaryglandshemangioendothelioma.html. Accessed December 8th, 2019.
Definition / general
  • Vascular tumor of anastomosing thin walled capillaries growing between salivary ducts and acini
  • Also called juvenile hemangioma
  • Most common salivary gland tumor of infants / children
Clinical features
  • Often congenital, involves parotid gland, submandibular gland; more common in females
  • Not malignant; intermediate behavior between angioma and angiosarcoma
  • May be associated with Kasabach-Merritt syndrome
  • 70 - 95% regress spontaneously by age 7 years
  • Fine needle aspiration may be useful for diagnosis (Arch Pathol Lab Med 2001;125:1340)
Case reports
Treatment
  • Delay excision in hope of spontaneous regression; postoperative radiotherapy
Gross description
  • Diffuse soft mass uninvolved with overlying skin
  • Periglandular muscular extension
Microscopic (histologic) description
  • Anastomosing thin walled capillaries growing between salivary ducts and acini
  • Variable mitotic figures, epithelioid or Kaposiform patterns, microcalcifications
Microscopic (histologic) images

Case of the Week #77

Thigh mass

Cytology description
  • Spindle shaped cells in sheets and clusters in bloody background
  • Cell block shows ductal structures trapped in sheets of spindle cells
Cytology images

Images hosted on other servers:

Hypercellular clusters of
bland spindle cells surrounding
ductal structures in cell block,
factor VIII+, CD34+

Positive stains
Differential diagnosis
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