Lymph nodes - not lymphoma
Neoplasms (not lymphoma)
Angiolipomatous hamartomas

Topic Completed: 1 November 2013

Minor changes: 7 April 2020

Copyright: 2003-2020,, Inc.

PubMed Search: Angiolipomatous hamartomas

Patricia Tsang, M.D., M.B.A.
Page views in 2019: 1,370
Page views in 2020 to date: 540
Cite this page: Tsang P. Angiolipomatous hamartomas. website. Accessed May 27th, 2020.
Definition / general
  • Various nodal sites, including cervical, mediastinal and retroperitoneal lymph nodes
  • Occurs in nodal parenchyma or extracapsular soft tissue
  • Miscellaneous extranodal sites can be involved
  • Rare disorder of unknown etiology
  • Pseudotumor; not a true neoplasm
Clinical features
  • Innocuous and slow growing
Radiology images

Images hosted on other servers:

Mesenteric tumor with soft tissue parts

Case reports
  • Surgical excision
Gross description
  • Unencapsulated single or multiple yellow and fatty nodules up to 15 cm
  • Tan nodules may represent accompanying hyaline vascular Castleman lymphadenopathy
Gross images

Images hosted on other servers:

Large smooth surfaced mass

Microscopic (histologic) description
  • Noncircumscribed intranodal or extranodal mass
  • Mature adipose tissue and haphazard thick walled muscular vessels of varying sizes
  • No thrombi within disorganized vascular channels
  • Lacks other mesenchymal tissue types, such as muscle
  • No necrosis, dense sclerosis, lipoblasts or marked cytologic atypia
Microscopic (histologic) images

Images hosted on other servers:

Small sized venous vessels in fibrofatty background

Differential diagnosis
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