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Geant spindel cell lipoma atypically located: a case report 


MOJ Clinical & Medical Case Reports
Abdelkader Mizouni,1 Taghrid Tlili,2 Waad Farhat,1 Mohamed Amin Said,1 Houssem Ammar,1 Leila Jedidi,1 Mohamed Ben Mabrouk,1 Ali Ben Ali1

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Abstract

Spindle cell lipoma is a histologically distinct variant of lipoma characteristically arising in the subcutis of the posterior neck, upper back, or shoulder. They rarely reach a size more than 2-3cms. In this article, we describe a case of a patient with geant spindle cell lipoma localized in atypical location. A 69-year-old male patient consulted because of a soft tissue mass in the right gluteus gradually increasing in size over the past 3 years. Magnetic resonance imaging (MRI) revealed a lipomatous tumor within the right gluteal muscle. The tumor was 10cmx7cm and was excised completely at surgery. The pathological diagnosis was intramuscular spindle cell lipoma and immunohistochemical study revealed all spindle cells were strongly positive for CD34. Spindle cell lipoma (SCL) is a relatively rare adipocytic neoplasm that classically arise in the trunk, lower extremities, and distal upper extremities of older male patients. Most of them measure less than 2.5cm. The large and deep seated lipomas represent a real diagnostic and therapeutic challenge as they can be confused with a well-differentiated low grade liposarcoma or other lipomatous neoplasms.

Keywords

spindle cell lipoma, gluteal region, geant lipoma, lipomatous tumor, gluteal muscle, adipocytic neoplasm, liposarcoma, larynx, bronchus, breast, orbit

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