# Surgical Proposition of a Slow-Growing Calvarial Exostosis in a Female Patient With a Congenital Iris Cyst of the Anterior Chamber and Mandibular Tori

## TL;DR

A woman with a rare slow-growing skull bone growth and other unusual features is presented, highlighting the need for awareness and possible surgical evaluation.

## Contribution

The paper presents a rare case combining calvarial exostosis, mandibular tori, and a congenital iris cyst.

## Key findings

- The patient had a slow-growing calvarial exostosis along with mandibular tori and a congenital iris cyst.
- Imaging alone could not definitively determine if the exostosis was benign or malignant.
- The patient opted for monitoring rather than surgical removal of the mass.

## Abstract

We present an unusual case of a woman in her early 50s with a slow-growing calvarial exostosis. Exostoses are bony spurs or osteomas extending outward beyond a bone's surface and may be benign or malignant. Calvarial exostoses are a less common bone tumor that can occur in the population. We present a case of a rare, slow-growing calvarial exostosis with a combination of mandibular tori and a congenital iris cyst. We discuss differentials of this exostosis and different syndromes that may cause it such as hereditary multiple exostoses and Gardner syndrome. The current article aims to spread awareness of this atypical presentation of exostoses and present our institution's surgical proposition for removing a calvarial exostosis to obtain a further histological analysis of its composition. As these masses may commonly be benign, a definitive diagnosis cannot be made through imaging alone to rule out more threatening conditions. We have addressed radiological findings and diagnostic and treatment options offered to the patient. The patient decided not to move forward with removing the mass and would continue to monitor and return should she notice any unusual or acute changes.