Fibrolipomatous Hamartoma Over the Left Forearm and Palm

Fibrolipomatous hamartomas are rare congenital benign tumors that can affect the nerves. The symptoms arise due to compression and may require surgical excision.

A man in his mid-20s suffered swelling over the volar aspect of the left forearm and hand for 4 months. He was symptomatic. A soft, non-tender swelling of size 6 × 4 cm was present over the flexor aspect of the left forearm and palm, with features suggestive of median nerve compression. Magnetic resonance imaging and electromyography were performed. Decompression of the carpal tunnel was performed with debulking of fibrofatty elements and fine dissection of the neural elements.

This case report demonstrates a rare fibrolipomatous hamartoma encompassing the median nerve, which required surgical excision.