Angiolipoma pathology

Author: Assoc Prof Patrick Emanuel, Dermatopathologist, Auckland, New Zealand, 2013.


Angiolipoma pathology
close
Categories:
Lesions, tumours and cancers, scars
ICD-11 MMS:
2E80.0Z
SNOMED CT:
404057003

Introduction

Angiolipoma is a relatively common benign subcutaneous lesion. They often occur in multiplicity. As no genetic abnormality has been found many believe it is best considered a hamartoma rather than a true neoplasm.

Histology of angiolipoma

Sections through angiolipoma show nonseptate fat with peripheral congeries of small capillaries (figure 1). Some of the capillaries are plugged with fibrin thrombi (figure 2).

Sometimes, there are only rare adipocytes admixed with numeous capillaries (“cellular angiolipoma”).

Angiolipoma pathology

Special studies for angiolipoma

None are generally needed.

Differential diagnosis of angiolipoma pathology

Cellular lesions and angiolipomas with massive intravascular thrombosis may be confused with rarer vascular lesions (such as kaposiform haemangioendothelioma).

Contribute to Dermnet

Did you find this page useful? We want to continue to deliver accurate dermatological information to health professionals and their patients — for free. Funding goes towards creating articles for DermNet, supporting researchers, and improving dermatological knowledge around the world.

Donate now with credit card or Paypal

 

Related information

 

References:

  • Weedon’s Skin Pathology (Third edition, 2010). David Weedon
  • Pathology of the Skin (Fourth edition, 2012). McKee PH, J. Calonje JE, Granter SR

On DermNet NZ:

Books about skin diseases:

See the DermNet NZ bookstore