[Acrokeratosis paraneoplastica Bazex 6 years prior to diagnosis of gastric cancer].

Background: Bazex's syndrome is a rare paraneoplasia that is usually associated with cancer.
Diagnosis: Characteristic for the disease are diffuse, psoriasis-like, acral erythema, distal hyperkeratosis and onychodystrophy. Differential diagnoses comprise psoriasis, eczema and tinea.
Case Report: We present the case of a 73-year-old man with acral hyperkeratosis, onychodystrophy, and diffuse palmar erythema. Gastric carcinoma was diagnosed by gastroscopy. After a gastrectomy was performed, regression of the skin lesions that the patient had been suffering from for more than 6 years was observed, confirming the diagnosis of Bazex's syndrome.