Sajjadeh Movahedinia
Department of Pathology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
[ 1 ] - Aneurysmal Bone Cyst: An Analysis of 38 Cases and Report of Four Unusual Surface Ones
Aneurysmal bone cyst (ABC) is a benign expansile bone tumor, most commonly involving the medulla of long bones. ABC rarely arises within the cortex or in the subperiosteal region, radiographically mimicking other conditions, in particular surface osteosarcomathat is low-grade in nature and may go secondary ABC changes, and telangiectatic osteosarcoma. Both of these are sometimes mistaken mic...
[ 2 ] - Secondary Malignant Transformation of Giant Cell Tumor of Bone: Is It a Fate?
The malignant transformation of conventional giant cell tumor of bone (GCTOB) is rare and usually occurs with irradiation. Here we report two neglected cases of conventional GCTOB with spontaneous malignant transformation at 11 and 16 years after initial diagnosis. In the former case, the patient refused to receive any treatment following the incisional biopsy, and in the latter, the firs...
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