Current Thoracic Surgery

Periosteal chondroma is a rare, benign, slowly growing cartilaginous tumors. They are found in long and tubular bones, mostly. It occurs in second and third decades of life. Rib is an rare location to found periosteal chondroma. We demonstrates a case report of periosteal chondroma founded in the rib that belongs 44-year-old man. We also examine isocitrate dehydrogenase 1 (IDH-1) mutation of this unusually located periosteal chondroma immunohistochemically and IDH-1 mutation was determined as negative. This article is aimed to present 44 years old man’s periosteal chondroma developed at rib that is an unusual location and age for periosteal chondromas.