Abstract
Schwannoma is a benign nerve sheath tumour that originates from schwann cells of the peripheral nerve. In spite of constituting 25-40% of head and neck tumours its in-traoral presentation is rare which accounts for only 1%. The purpose of this case report is to highlight the rarity of this lesion, to emphasize the significance of an accurate diagnosis and to include tumours of nerve sheath origin in the differential diagnosis of facial asymmetry.
Highlights
Schwann cells intimately ensheath all neurons of both myelinated and non-myelinated nerves in the peripheral nervous system.[1]
Schwannomas occurring in the head and neck region constitute 25–45% of head and neck tumours.[2]
Schwannoma is a rare, benign, encapsulated perineural tumour of neuroectodermal origin that is derived from the Schwann cells of the neural sheath
Summary
Schwann cells intimately ensheath all neurons of both myelinated and non-myelinated nerves in the peripheral nervous system.[1]. An 18-year-old female reported with a main complaint of a gradually increasing painless swelling on right side of the face of 4 months duration. It extended from right ala of nose to preauricular notch, anteroposteriorly, and from right maxillary buccal vestibule to right infraorbital region, superioinferiorly (Fig. 1). T2 weighted MRI demonstrated a large well defined, heterogeneously enhanced mass measuring 5x4.4 x4.2 cm in right infratemporal fossa. Based on the clinical and radiological findings, a provisional diagnosis of a benign soft tissue neoplasm in the right infratemporal fossa was made. T2 weighted MRI demonstrated a low-density mass in the right infratemporal fossa and bowing in of the right maxillary sinus
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