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Skull Base 2003; 13(2): 079-084
DOI: 10.1055/s-2003-40597
CASE REPORT

Copyright © 2003 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. Tel.: +1(212) 584-4662

Osteosarcoma of the Skull Base after Radiation Therapy in a Patient with McCune-Albright Syndrome: Case Report

Marlan R. Hansen, J. Craig Moffat
  • House Ear Clinic and Institute, Los Angeles, California
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Publikationsverlauf

Publikationsdatum:
18. Juli 2003 (online)

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ABSTRACT

Sarcomas of the skull base occurring in the field of prior radiotherapy are rare; only a few have been reported in the English literature. We report a fatal osteosarcoma of the skull base arising in a patient with McCune-Albright syndrome and severe fibrous dysplasia of the skull base 22 years after radiation therapy for a pituitary adenoma. This malignancy fulfills Cahan's criteria for a radiation-induced tumor in that it arose in the radiation field of a pituitary adenoma with a latency of 22 years. The literature on radiation-induced sarcomas of the skull base is reviewed, and the predisposition of patients with isolated fibrous dysplasia or McCune-Albright syndrome to develop radiation-induced tumors is discussed. Although the risk of radiation-induced malignancy is low in the general population, special consideration should be given when contemplating the use of radiotherapy for benign disease in patients with McCune-Albright syndrome or isolated fibrous dysplasia.

KEYWORDS

Radiation therapy - sarcoma - fibrous dysplasia - McCune-Albright syndrome

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