This is a case study presented by the University of Pittsburgh Department of Pathology in which a man noticed a large and painful mass on his right flank. A previous mass had been removed surgically but developed a...

In this case study from the Department of Pathology at the University of Pittsburgh School of Medicine, a 12-year-old male is presented with "an osteolytic lesion of the proximal left tibia." Gross and microscopic images...

This is a case study presented by the University of Pittsburgh Department of Pathology in which a man presented with a painless mass in his right medial thigh, without an incidence of trauma. Visitors can view...