Giant-Cell Tumors of the Sphenoid Bone in Four Children: Radiological, Clinical, and Pathological Findings

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Abstract
We report the clinical pathological and radiological findings of giant cell tumor of the sphenoid bone in four children aged 10 to 16 years. The most common clinical finding was headache, followed by cranial nerve abnormalities. The computed tomographic findings of giant cell tumor consist of a lytic defect, sharply margmated with no sclerosis associated with an expansile, homogeneous mass (isodense with muscle). In the differential diagnosis, the lesion most similar to giant cell tumor is giant cell granuloma. The different histopathological features of the two lesions are discussed, along with other lesions, in the differential diagnosis. The magnetic resonance features consist of a mass with low signal intensities on T1 and T2 weighted images associated with moderate enhancement after introduction of gadolinium.

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