Case Report: Intramuscular Lipoma of the Hypothenar Space with Neurological Implications

A lipoma is a common subcutaneous mesenchymal benign tumor, occurring in approximately 2% of the population. However, its occurrence in the distal extremities is very rare. Lipomas in the hand can lead to various issues, including cosmetic concerns, functional impairment, and neurological complications. Surgical removal is required when they are symptomatic. While lipomas can develop in any anatomical plane, intramuscular lipomas of the hand are extremely rare, with only a few cases reported in the literature. This case report describes a rare occurrence of a giant intramuscular lipoma in the hypothenar region of the right hand. The patient presented with neurological symptoms, including tingling and numbness in the third, fourth, and fifth fingers. The condition was managed with surgical excision while preserving the superficial ulnar nerve. Post-surgery, the patient experienced complete resolution of symptoms and improved finger extension strength.