Surface-based chondroblastoma of the tibia: a unique presentation

Abstract

We discuss the diagnostic considerations and possible etiology of chondroblastoma given this unusual location.

Metaphyseal chondroblastoma in a pediatric patient

“…On imaging studies, chondroblastomas have a classic appearance which can easily suggest the diagnosis when present on a young patient and in the usual epiphyseal region [11] . The lesion is almost always in an eccentric intramedullary location, even though literature reports of extremely rare tumors in the intracortical setting exist [ 13 , 14 ]. On radiographic images, the tumor usually presents as a lytic lesion with well-demarcated margins, a thin sclerotic rim and chondroid matrix [15] .…”

Imaging of Pediatric Bone Tumors and Tumor-like Lesions

“…4 They may also be seen in unusual sites like the pelvis, skull, and small bones of the hands and feet in older patients. 18 Presentation may be with pain (98%), local tenderness, stiffness, swelling, and joint effusion. 15 Histologically, the constituent neoplastic cells are chondroblasts.…”