History: A 43-year-old male presented with a mass in his left mid-back that had been present for approximately two years. When excised, the mass was well-circumscribed and measured 5.5 x 4.0 x 2.5 cm. It was found to be superficial and did not involve bone or muscle.“July 2007: A 43 year old man with a mass in the mid-back.”Continue reading