Numb Chin Syndrome Secondary to Vestibular Schwannoma
Journal Title: Scholarly Journal of Otolaryngology - Year 2018, Vol 1, Issue 4
Abstract
Numb chin syndrome (NCS) or mental neuropathy is a sensory neuropathy. It can present as trivial finding of hypoesthesia/ paraesthesia or pain over the chin and area supplied by the mandibular nerve. The etiology can vary from dental pathogenesis to malignancy and neurological disorders. Here we present a case report of 18 year old female patient, who presented with numb chin syndrome and on further investigation was detected with a large vestibular schwannoma. Parasthesia or Numbness over the chin is common symptom in dental practice. It is generally seen as adverse effect of peripheral neurectomy that may occur during oral surgical procedures involving inferior alveolar nerve. However, in certain instances it may be symptom of serious underlying disorder such as malignancy or neurological pathology. In this case report we highlight one such case of a young patient presenting with a trivial symptom of numbness over the chin which was the only manifestation of a large intracranial Schwannoma. An 18 year old female patient reported with chief complaint of numbness in the left lower side of the face for 2 months. Her medical and dental history was not significant. She was well built and nourished, conscious and cooperative during the examination. On extra oral examination there was no facial a symmetry. Temporomandibular examination was normal. A single jugulodigastric lymph node was enlarged and tender on the left side. It was firm in consistency and not fixed. On intraoral examination, two ulcers spherical in shape and less than 1cm in diameter with peri inflammatory halo were noticed on the left lower labial mucosa. Tongue was coated with mild erythematous changes on the left lateral aspect, soft palate and tonsillar pillars on the left side were also erythematous. We performed cranial nerve examination and found deficit on the mandibular division of trigeminal nerve. Pulp vitality testing was done and all the teeth on the lower left quadrant did not respond. OPG showed widening of the mandibular foramen. A provisional diagnosis of numb chin syndrome was made, and patient was advised for a complete blood count and MRI of head and neck.
Authors and Affiliations
Nilofer Halim, Chaithra Kalkur, Anusha L Rangare, Padmashree S
Keywords
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- EP ID EP599144
- DOI 10.32474/SJO.2019.01.000120
- Views 47
- Downloads 0
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