Neurovascular compression by a subpectoral lipoma. A case report of a rare cause of thoracic outlet syndrome

Background : Lipomas are benign soft tissue tumours, progressively expanding in volume. Beside frequent aesthetic consequences, lipomas can also exert pressure on surrounding tissues and structures. Materials and Methods :A case of a subpectoral infraclavicular lipoma compressing the axillo-subclavicular neurovas- cular bundle, produced unilateral brachialgia, thereby simulating a Thoracic Outlet Syndrome. The expansive, but non- infiltrative, nature of the lipoma allowed local excision in the vicinity of the brachial plexus and infraclavicular vascu- lar structures. Results : Surgical removal of the lipoma resulted in complete remission of symptoms in the left arm and hand. Conclusions : In the presence of unilateral brachialgia, a subpectoral tumour causing a Thoracic Outlet Syndrome should always be excluded in the absence of other relevant pathology.