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Two cases of numb chin syndrome diagnosed as malignant disease
Kosuke Maeda1, Jun-Ichi Taniguchi1, Kunihiko Matsui1
1Department of Community, Family, and General Medicine, Kumamoto University Hospital, Kumamoto 860-8556, Japan.
Abstract:
Numb chin syndrome (NCS) is defined as reduced or absent sensation in an area of the chin and lower lip within the distribution of the mental or inferior alveolar nerves. The causes of NCS may be neoplastic, traumatic, dental, toxic, drug-induced, inflammatory, autoimmune or infectious. NCS may be the preliminary symptom of malignancy or recurrence/metastasis in patients with cancer. Therefore, the occurrence of NCS warrants careful examination and monitoring of such patients. This article presents two cases of NCS reported in a patient with prostate cancer and in a patient with Burkitt lymphoma/leukaemia.
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