[Paraneoplastic acrokeratosis: Bazex disease. A tumor-specific dermatosis in squamous cell cancers in the area of the head and neck].

: Bazex syndrome is a rare paraneoplastic syndrome with characteristic acral hyperkeratosis, seen only in men with either carcinoma of or metastases to the head and neck. The author describes a case of Bazex syndrome in which recognition of the hyperkeratosis led to diagnosis and treatment of the underlying tumour.