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Soft Tissue Tumors

Infections, inflammation and hematomas

Hematoma of soft tissue


Reviewer: Komal Arora, M.D. (see Reviewers page)
Revised: 18 July 2012, last major update July 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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● May clinically resemble a tumor if deep seated
● Important to exclude a sarcoma with intratumoral hemorrhage
● Pseudoaneurysm may occur after intravascular procedures
● Post-operative seromas may persist for years and be confused with recurrent tumor

Sites:
● Usually near tensor fascia lata (upper thigh muscle, see drawing below)

Case reports
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● In tensor fascia lata (Dermatol Online J 2001;7:6)
● Giant chronic expanding hematoma of thigh (Joint Bone Spine 2008;75:64)
● Mass of thorax (Yonsei Med J 2007;48:337)

Drawings
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Usually near tensor fascia lata (upper thigh muscle)

Treatment
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● Complete surgical excision, including pseudocapsule

Clinical images
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Lesion of lateral thigh


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


Lobulation with dense fibrous pseudocapsule and chocolate-brown fluid

Micro images
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Cystic cavity with necrotic debris, fibrin and blood costs


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

End of Soft Tissue Tumors > Infections, inflammation and hematomas > Hematoma of soft tissue


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