Osteoblastoma is a relatively rare benign bone tumor, most often located in the vertebral column or metaphysis of the long bones, particularly the femur and the tibia. Periosteal osteoblastoma is the least common type. Exostosis-like appearance is not common even in periosteal osteoblastoma, a very rare type of this tumor. In addition, an intraarticular location is uncommon for osteoblastomas. Here we report the case of a 25-year-old man with intra-articular exostosis-like periosteal osteoblastoma of the hip that resulted in impingement and osteoarthritis.
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Genes Chromosomes Cancer
July 2024
Division of Surgical Pathology, Chiba Cancer Center, Chiba, Japan.
An aneurysmal bone cyst (ABC) is a benign bone neoplasm that typically occurs during the first and second decades of life. ABC usually presents as a rapidly growing intramedullary expansile mass with multiple blood-filled cysts in the metaphysis of the long tubular bones. Here, we report a case of a periosteal solid ABC that was initially diagnosed as a high-grade surface osteosarcoma.
View Article and Find Full Text PDFSkeletal Radiol
July 2024
Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, 40136, Bologna, Italy.
Aneurysmal bone cyst (ABC) is a rare and usually painful condition, representing about 1% of all bone tumors. A geographical lytic, expansile, and septated radiological pattern, with fluid-fluid levels on MRI, is classically displayed. ABC can be a primary bone lesion (70% of patients) or can arise in an underlying condition and is subsequently named "ABC-like changes" (30%).
View Article and Find Full Text PDFInt J Surg Case Rep
April 2022
Department of Orthopaedic and Traumatology, Faculty of Medicine Universitas Indonesia/Cipto Mangunkusumo General Hospital, Jakarta, Indonesia. Electronic address:
Introduction And Importance: Chondromyxoid fibroma is a rare benign cartilaginous neoplasm, a mixture of benign cartilage and fibrous and myxoid tissue. It usually affects young people, commonly in the second and third decades of life with male being predominant. Differential diagnosess in chondromyxoid fibroma, are giant cell tumor, bone cyst, enchondroma, osteoblastoma, and low-grade chondrosarcoma.
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