Large intramuscular spindle‐cell lipoma

A case of a large spindle‐cell lipoma in an intramuscular (subfascial) localization is reported. The tumour occurred in a 58‐year‐old male patient and was localized subfascially in his left deltoid muscle. The tumour measured 20 × 8 × 8 cm; its weight was 780 grams. After initial biopsy, the tumour was extirpated. Microscopically, the tumour tissue consisted of mature fat cells and spindle‐cell areas in varying amounts, constituting a typical appearance of a spindle‐cell lipoma. There were no histological signs of malignancy. Especially, no areas of liposarcoma differentiation were detected. The patient is well, with no signs of recurrence, one and a half years after the operation. We have reviewed the literature on spindle‐cell lipoma, and we believe this is the first example of this neoplasm to be reported in an intramuscular (subfascial) localization.