Shoulder pain is a common presenting symptom and may be secondary to a variety of underlying causes. We report a case of shoulder pain caused by a periarticular neurofibroma. Although neurofibromatosis has many classic musculoskeletal manifestations 1 , to our knowledge it has not been reported within the shoulder girdle. The patient was informed that data concerning the case would be submitted for publication, and she consented.
A thirty-eight-year-old woman presented with a two-year history of atraumatic pain in the left shoulder. The pain was insidious in onset, diffuse and dull, nonradiating, and nonprogressive. The patient reported that she did not have pain at rest but experienced pain with any activity and at night, particularly when lying on her left side. She otherwise felt well. Constitutional symptoms were absent, as were proximal pain or neurological symptoms. She had anteromedial elbow pain but no symptoms in any other joint. The patient was diagnosed with neurofibromatosis-1 at eight months of age. Neurofibromatosis is one of the most common autosomal dominant inherited diseases. Although it classically affects neural tissue, because of its ubiquitous nature it can manifest within bone and soft tissue. This patient initially presented with a