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Clinical Problem Solving: Radiology
July 2007

Radiology Quiz Case 2: Diagnosis

Author Affiliations

Copyright 2007 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.2007

Arch Otolaryngol Head Neck Surg. 2007;133(7):727. doi:10.1001/archotol.133.7.727

Lipomas are the most common neoplasms of mesenchymal origin, arising in any location where fat is normally present. These adipose tumors are slow growing, nearly always benign, and most often found in the subcutaneous tissues. They are composed microscopically of mature white adipose tissue arranged in lobules, many of which are surrounded by a delicate fibrous capsule.1 These benign lesions are rare in the first 2 decades of life, usually developing in the fifth and sixth decades of life, when fat begins to accumulate, usually in inactive, obese individuals.2