disease has location disease arises from structure disease arises from alteration in structure bone benign neoplasm periosteal chondroma https://www.malacards.org/card/juxtacortical_chondroma periosteal chondroma MONDO:0002359 juxtacortical chondroma DOID:2601 A benign neoplasm of bone surface composed of hyaline cartilage. It arises beneath the periosteum and is characterized by the presence of chondrocytes, a lobulated growth pattern, and calcification. MEDGEN:87260 juxtacortical chondroma (morphologic abnormality) GARD:0023124 UMLS:C0334548 NCIT:C4302 ICDO:9221/0 chondroma periosteum cartilage element