Lipoma and Angiolipoma

Lipoma and Angiolipoma

Angiolipomas consist of a mixture of small blood vessels and adipose tissue. The borders are well circumscribed image. These lesions may present as a palpable mass or as a mammographic density.

The majority of angiolipomas have small fibrin thrombi image, which are an important diagnostic feature. Unlike dermal angiolipomas that may present with pain, breast lesions are usually asymptomatic.



  • Benign neoplasms consisting of mature adipose cells and blood vessels



  • Age

    • Most lipomas become clinically apparent in patients 40-60 years old


  • Lipomas and angiolipomas form soft palpable circumscribed masses

    • Typically present as slowly growing solitary lesions

  • Also detected at screening mammography


  • Surgical approaches

    • Lesions are benign, and no treatment is necessary

    • Palpable masses, or those that are clinically apparent, may be excised for cosmetic reasons or due to patient preference

    • Superficial or subcutaneous lesions are more likely to be clinically apparent and undergo excision


  • Benign lesions without risk of local recurrence

Core Needle Biopsies

  • Histologic features of lipoma on core needle biopsy are nondiagnostic

    • Radiologic correlation is necessary for a final diagnosis

    • Lipomas are rarely biopsied as imaging findings are usually diagnostic

  • Angiolipomas can be diagnosed on core needle biopsies

    • More commonly biopsied than lipomas due to dense appearance that can mimic carcinomas


Mammographic Findings

Jul 6, 2016 | Posted by in PATHOLOGY & LABORATORY MEDICINE | Comments Off on Lipoma and Angiolipoma

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