Synonyms:
a.k.a. numb chin syndrome
Diagnosis:
This is a clinical syndrome diagnosed by signs and symptoms. The underlying cause is determined by investigations and clinical correlation. The distal branches of the trigeminal nerve V3 are affected.
Clinical features:
Unilateral numb chin
+/-anaesthesia of chin & lower lip
Investigations to consider:
Imaging for underlying neoplasm
Mandible X-ray: assess for local disease
CT Mandible: assess for local disease tumors, osteomyelitis
+bone scan if CT is negative