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Soft Tissue Tumors

Adipose tissue-liposarcoma

Mixed type liposarcoma

Reviewer: Vijay Shankar, M.D. (see Reviewers page)
Revised: 13 November 2012, last major update August 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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● Mixture of myxoid/round cell, well differentiated/dedifferentiated and pleomorphic types

Epidemiology
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● Rare
● Affects elderly patients, usually in retroperitoneum
● Morphologic differences are due to differential expression of multiple genes (Pathology 2006;38:114)

Case reports
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● 11 year old girl with cough, dyspnea and fever due to mediastinal tumor (Indian J Pathol Microbiol 2010;53:525)
● 45 year old woman with thigh tumor (Virchows Arch 2008;453:197)
● 50 year old man with retroperitoneal tumor (Am Surg 2008;74:1202)
● 52 year old man with intramuscular tumor in thigh and 62 year old man with intramuscular tumor in calf (Jpn J Clin Oncol 2003;33:482)
● 62 year old man with axillary mass (J Radiol Case Rep 2012;6:9)
● 75 year old man with scrotal swelling (Romanian Journal of Morphology and Embryology 2008;49:105)

Gross description
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● Large multinodular masses
● Cystic/solid
● Gray-white-yellow

Gross images
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Thigh tumor


Calf tumor

Micro images
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Tumors (left to right) of calf, mediastinum, thigh

End of Soft Tissue Tumors > Adipose tissue-liposarcoma > Mixed type liposarcoma

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