Neurofibromatosis Type 1 in the Mandible
The present case has been reported in the journal Annals of Maxillofacial Surgery.

A 65-year-old woman visited the authors' dental hospital for prosthetic treatment. In her 20s, she had been diagnosed with dermal NF1 of the face, extremities, and trunk. The patient had no family history of NF1. Excision of subcutaneous neurofibroma on the left cheek was done in her 30s, which recurred in 2 years back and was again surgically removed. The patient otherwise has had no symptomatic lesions requiring management.

Routine panoramic radiography for dental prosthetic treatment revealed a concavity of the right posterior border of the ramus, a deep coronoid notch, and prominent antegonial notching CT was performed using Light Speed VCT. Scan conditions were as follows: 120 kVp, 200 mA, 512 × 512 matrix size, 2.5 mm slice thickness, and φ25 cm FOV. The contrast enhancement was done by infusing 100 ml of iohexol. Coronal, sagittal, and three-dimensional reformatted images were made after examination.

CT revealed that the right condylar head was small and deformed. The right coronoid process and lateral pterygoid processes were hypoplastic. There was a corticated, irregularly shaped depression of the lateral aspect of the right ramus.

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