Abstract
A 22-year-old man was treated surgically for monostotic fibrous dysplasia of the temporal bone. Although he complained of nomarked symptoms such as stenosis of the external auditory canal or hearing loss, a solid mass was incidentally detected in the left temporal bone by MRI, and a malignant neoplasm could not be excluded. Total extirpation was performed without postoperative complications, and a pathological diagnosis of “fibrous dysplasia, a cementicle rich variant” was made. A second operation for cranioplasty was performed 8 months later, and the absence of recurrence was comfirmed.We reviewed 17 cases of fibrous dysplasia of the temporal bone reported in Japan. CT and MRI are considered to be useful for preoperative evaluation of the structure and extent of fibrous dysplasia, but fibrous dysplasia cannot be distinguished from other malignant diseases by 67Ga scintigraphy or angiography.
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