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Mediastinum

Other benign / low grade tumors

Lipoma

Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 2 March 2013, last major update December 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.

General
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● Common, occur throughout mediastinum
● Often very large and located just above diaphragm
● Anterosuperior lipomas clinically resemble thymolipoma

Case reports
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● 41 year old man with fat necrosis (Arch Bronconeumol 2008;44:641)
● 71 year old woman with 27 cm tumor (Kyobu Geka 2010;63:426)
● Case of spindle cell lipoma (J Thorac Imaging 2007;22:355)

Micro images
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Necrotic adipocytes (circle) and peripheral histiocytic reaction (arrow)

Differential diagnosis
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● Lipomatosis
● Thymolipoma: thymic tissue present

End of Mediastinum > Other benign / low grade tumors > Lipoma

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