Spontaneous Involution of Diffuse Fibrous Dysplasia of Paranasal Sinuses

Abstract

We report the case of a 25-year-old patient, diagnosed at age 10, with diffuse fibrous dysplasia of the paranasal sinuses, an extremely rare idiopathic condition. This diagnosis is possible only by cerebral computed tomography (CT), cerebral and anterior skull base magnetic resonance imaging (MRI), and histopathology. Surgical treatment is common. This boy had mild symptoms: moderate headache in the morning that did not affect his daily activity, and rhinitis, partially responsive to medication. The neurologic examination was abnormal. Radiographs, CT, and MRI showed a diffuse mass in the paranasal sinuses which had a histopathological diagnosis of fibrous dysplasias. The family refused to refer the patient to surgery. The boy has been monitored annually for 15 years. He has remained asymptomatic without headache since age 11, with normal, general and neurologic examinations. Serial MRIs showed a spontaneous partial involution of the mass.

Keywords

fibrous dysplasia paranasal sinuses follow-up spontaneous involution child

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