The radiologic findings of numb-chin syndrome as the presenting symptom of benign degenerative calcified mass on the mandibular bone

다국어 초록 (Multilingual Abstract)

The numb chin syndrome reflects an abnormality in mental nerve or inferior alveolar nerve. It manifests as objective and/or subjective sensory disorders in the distribution of the mental nerve or inferior alveolar nerve, represented primarily by half of the lower lip and chin, also known as mental neuropathy It is an uncommon occurrence with cancer (breast, lung, lymphoma and hematological malignancies) and consists of numbness in the lower lip and chin. Facial numbness was associated with malignancy was first referred to as the num chin syndrome by Calverley and Mohnac in 1963. The mechanism of such a manifestation can be direct compression of the mental or inferior alveolar nerve by metastases to mandible, base of the skull, or leptomeningeal seeding.