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Low-fat and fat-free pleomorphic lipomas: a diagnostic challenge.

Am J Dermatopathol. 2009 Jul; 31(5): 423-6Sachdeva MP, Goldblum JR, Rubin BP, Billings SDPleomorphic lipomas are benign tumors that most commonly present as subcutaneous masses in the head and neck, shoulder, or back region of middle-aged to elderly men. They are related to spindle cell lipomas based on shared cytogenetic aberrations and histologic features. When little or no fat is present, the diagnosis can be challenging. A review of 38 pleomorphic lipomas seen in consultation revealed 7 cases in which fat was present in reduced (

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