Osteosarcoma involving epiphysis

Osteosarcoma involving epiphysis •Specimen is a section though a joint. •The two bones involved are on the left and right. •The epiphysis of the bone on the right is seen at the black arrow. •The epiphysis of the bone on the left has been completely replaced by the mass which distends the joint capsule to the top of the specimen. •The tumor is indicated by the white arrows. (Description By:T.V.Rajan, M.D. ) (Image Contrib. by: UCHC )