Intramuscular Lipoma of the Flexor Hallucis Brevis Muscle.

An intramuscular lipoma is a deep-seated, rare, benign mesenchymal tumor that arises in skeletal muscle. These soft-tissue masses are rarely reported in the foot. We describe an unusual case of an intramuscular lipoma of the flexor hallucis brevis muscle. A review of the literature revealed only one previous report of this lesion in the foot.