Neurofibroma (NF) is a benign neoplasm derived from peripheral nerve cells. NF may extend either as a solitary lesion or as part of a generalized syndrome of neurofibromatosis. Intraorally, the intraosseous variant of neurofibroma is a very rare tumor. The literature provides only few cases of solitary intraosseous neurofibroma of the mandible. We report a case of 28-year-old female who was diagnosed with a solitary intraosseous neurofibroma involving the lower left quadrant of the mandible. The present case is rare in regard to its dimensions and its location.

A 45-year-old male patient reported to the Department of Oral Medicine and Radiology with a chief complaint of difficulty in chewing due to missing teeth in upper and lower back tooth region of both the jaws since 20 years duration. The patient's medical, family and social history were non-contributory. General physical examination showed a healthy-looking male. On intraoral examination, many teeth were lost with remaining root stumps. Bony hard swellings were noticed in the anterior and posterior region of both the jaws with vestibular obliteration. Patient did not complain of any pain and paraesthesia intraorally as well as extraorally. Pigmentation was predominantly observed in the anterior region of both the jaws. Overlying mucosa of the swellings was normal and non-tender on palpation [Table/ Fig-1].

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<p>Dermoid and epidermoid cysts which belong to choristomas, usually manifest clinically as superficial and deep cystic movable formations, most often with a slow and intermittent growth. In the present article we report a case of an external angular dermoid cyst in a 13-year-old boy, the growth of which was steady on progression. Surgical excision of the cyst was done by approaching through an external sub-brow incision. Dermoid cysts are unusual neoplasms that often seen in children with the most commonly affected site being the orbit in the head and neck region. Such cysts may cause compression to the eye lobe and the optic nerve. Hence, operative procedures may be suggested in the case of such cysts which have a constant progression. </p><p>Keywords: Choristoma; Dermoid; Sub-brow incision.</p>