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Skeletal Radiol
; 53(5): 1003-1009, 2024 May.
Artigo
em Inglês
| MEDLINE
| ID: mdl-37733062
RESUMO
Chondroblastoma is a rare benign cartilaginous tumor mostly confined to the epiphyses and apophyses. Cases outside the epiphyseal region are exceedingly rare. Extramedullary chondroblastomas are exceptional; to our knowledge, only two cases qualified as "periosteal chondroblastoma" have been described in the literature. We report two cases of metaphyseal periosteal chondroblastoma both located on the inferior surface of the femoral neck. Both cases were paucicellular with an unusual dense sclerotic reaction. The diagnosis of chondroblastoma was supported by the expression of histone 3.3, K36M mutant in tumor cells.
Assuntos
Neoplasias Ósseas , Condroblastoma , Humanos , Condroblastoma/patologia , Colo do Fêmur/patologia , Neoplasias Ósseas/patologia , Epífises/patologia , Histonas
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