Recurrent parosteal osteosarcoma of the talus in a 2-year-old child.
Parosteal osteosarcoma is an uncommon, low-grade malignant bone tumor and is found in an older age group than conventional osteosarcoma. We present a talar parosteal osteosarcoma that recurred twice in a 2-year-old child. To our knowledge, this is the youngest patient reported with a parosteal osteosarcoma. The talus is an unusual site for parosteal osteosarcoma. Inadequate resection due to a diagnosis of juxtacortical chondroma resulted in recurrence of the tumor. The age of the patient, the thick cartilaginous cap, and well-differentiated trabecular bone all contributed to the critical erroneous diagnosis.
Jee
W H
WH
Department of Radiology, Catholic University Medical College, Kangnam St. Mary's Hospital, Seocho-Ku, Seoul, South Korea.
Choe
B Y
BY
Ok
I Y
IY
Kim
J M
JM
Choi
Y J
YJ
Choi
K H
KH
Shinn
K S
KS
D001859:Bone Neoplasms / Q000175:diagnosis / Q000453:epidemiology*; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009364:Neoplasm Recurrence, Local; D018217:Osteosarcoma, Juxtacortical / Q000175:diagnosis / Q000453:epidemiology*; D013628:Talus / Q000473:pathology*