Spindle cell lipoma is a distinct type of lipoma characterized by replacement of mature fat by collagen forming spindle cells. It is a benign lesion occurring chiefly in males older than 45 years and affects the subcutaneous tissues in the regions of the shoulder and posterior neck. Deep-seated (intramuscular) spindle cell lipomas are probably uncommon tumors and to date only two cases have been reported in the literature. A new case of a vascular variant of spindle cell lipoma in an intramuscular (subfascial) location is presented and the differential diagnosis is discussed.
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