obsolete_chondroblastoma true chondroblastoma (disease) MESH:D002804 chondroblastoma (disease) HP:0030432 DOID:2649 UMLS:C0008441 CHBL 3.88.0 chondroblastoma of bone chondroblastoma EFO:0000331 A benign, chondroid-producing, well-circumscribed, lytic neoplasm usually arising from the epiphysis of long bones. It is characterized by the presence of chondroblasts, osteoclast-like giant cells, chondroid formation, calcification, and mitotic activity. In aggressive cases, there is rearrangement of the 8q21 chromosome band. It occurs most frequently in children and young adults and rarely metastasizes. ONCOTREE:CHBL http://purl.obolibrary.org/obo/MONDO_0004997 GARD:0006047 NCIT:C2945 Replaced by Mondo term MONDO_0004997, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0004997 ICDO:9230/0