Soft tissue

Infections, inflammation & hematoma


Topic Completed: 1 July 2012

Minor changes: 14 September 2020

Copyright: 2002-2021,, Inc.

PubMed Search: Hematoma [title] soft tissue

Komal Arora, M.D.
Page views in 2020: 4,509
Page views in 2021 to date: 4,828
Cite this page: Arora K. Hematoma. website. Accessed October 24th, 2021.
Definition / general
  • May clinically resemble a tumor if deep seated
  • Important to exclude a sarcoma with intratumoral hemorrhage
  • Pseudoaneurysm may occur after intravascular procedures
  • Postoperative seromas may persist for years and be confused with recurrent tumor
  • Usually near tensor fascia lata (upper thigh muscle, see drawing below)
Case reports
  • Complete surgical excision, including pseudocapsule
Clinical images

Images hosted on other servers:

Lesion of lateral thigh

Perforating vessel
from tensor fascia lata
appears to run into the mass

Lobulation with dense
fibrous pseudocapsule
and chocolate brown fluid

Microscopic (histologic) images

Images hosted on other servers:

Cystic cavity with necrotic debris, fibrin and blood costs

Cyst wall has hyalinized fibrous tissue, chronic inflammation and granulation tissue

Additional references
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