Mental Neuropathy as Initial Manifestation of Metastatic Breast Cancer: A Case Report and Review of the Literature

Mental neuropathy is a sensory neuropathy characterized by hypoesthe-sia or paresthesia of the chin and lower lip. It can be a symptom of a latent malignant disease.
This report presents a case of a 34-year-old woman with a history of breast cancer who complained of severe pain and numbness of the right lower lip. We reviewed numerous reliable articles (through PubMed and Google Search) in relation to mental neuropathy and its possible causes.
Given that the reports of mental neuropathy have often been associated with malignancies, patients that complain of sensory impairment and numbness of the mental region should be examined carefully.