Periosteal Osteosarcoma Arising from the Rib and Scapula: Imaging Features in Two Cases

Periosteal osteosarcoma is an extremely rare chondroblastic osteosarcoma in the flat bone. There were authors reporting of two cases of periosteal osteosarcoma in the highly unusual sites. One of them arose from the rib, in a 17-year-old male, which appeared as a hypodense juxtacortical mass with pe...

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Detalles Bibliográficos
Autores principales: Hong, Jae Beom, Cho, Kil-Ho, Choi, Joon Hyuk
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Society of Radiology 2014
Materias:
Musculoskeletal Imaging
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4023056/
https://www.ncbi.nlm.nih.gov/pubmed/24843242
http://dx.doi.org/10.3348/kjr.2014.15.3.370
Descripción
Sumario:Periosteal osteosarcoma is an extremely rare chondroblastic osteosarcoma in the flat bone. There were authors reporting of two cases of periosteal osteosarcoma in the highly unusual sites. One of them arose from the rib, in a 17-year-old male, which appeared as a hypodense juxtacortical mass with periosteal reaction on CT. The other one arose from the scapula, in a 17-year-old female, which showed the intermediate signal intensity (SI) on T1-weighted image (WI), heterogeneous high SI on T2WI, and rim-enhancement on contrast-enhanced T1WI with cortical destruction on MRI.

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