Osteoblastoma-like osteosarcoma of the distal tibia.
We report a case of a 14-year-old boy with an intracompartmental lytic lesion with poorly defined margins in the right distal tibia that was originally treated with curettage and bone grafting. Histologic examination showed an osteoblastic tumor with unusual features, which was found on consultation to be an osteoblastoma-like osteosarcoma, a rare, low-grade variant of osteosarcoma. Subsequently, the patient underwent en bloc resection of the distal tibia, which was replaced with vascularized bone graft and followed by chemotherapy. Two years later, he is alive with lung metastases.
Abramovici
Luigia
L
Department of Pathology and Laboratory Medicine, Hospital for Joint Diseases, 301 E. 17 Street, New York, NY 10003, USA. luigia52@yahoo.com
Kenan
Samuel
S
Hytiroglou
Prodromos
P
Rafii
Mahvash
M
Steiner
German C
GC
D000293:Adolescent; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D018215:Osteoblastoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D012516:Osteosarcoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D013977:Tibia / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed