Osteosarcoma Arising from a Solitary Osteochondroma of the Tibia

AUTHORS

S Torabi Nezhad 1 , * , MH Bagheri 2 , Sh Rakhshandero 2

1 Pathology Department, Shiraz Nephrology Center, Shiraz University of Medical Sci-ences, torabins@yahoo.com, Fars, Iran

2 Department of Radiology, Shiraz University of Medical Sciences, Fars, Iran

How to Cite: Torabi Nezhad S, Bagheri M, Rakhshandero S. Osteosarcoma Arising from a Solitary Osteochondroma of the Tibia, Iran Red Crescent Med J. Online ahead of Print ; 10(4):341-343.

ARTICLE INFORMATION

Iranian Red Crescent Medical Journal: 10 (4); 341-343
Article Type: Case Report
Received: March 20, 2008
Accepted: July 15, 2008

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Abstract

We present a case of osteosarcoma arising from an osteochondroma of the right tibia in a 71 year old man. The radiographic studies were suggestive of a malignant lesion. Histologic examination showed a conventional osteosarcoma that eroded the cartilagenous cap. The patient received postoperative chemotherapy with no evidence of metastasis until three years following the operation.  The occurrence of osteosarcoma out of osteochondroma is an extremely rare event and very few cases have been reported.

Keywords

Osteochondroma Malignant transformation Osteosarcoma

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