Dermatomyositis and nasopharyngeal carcinoma: 3 cases.

Background. Nasopharyngeal carcinoma is a common cancer in Tunisia with an estimated incidence of 1.8/100,000. The tumor shows a characteristic associ ation with paraneoplastic syndromes. Case reports. We report three cases of histologically histologically proven dermatomyositis associated with nasopharyngeal carcinoma in patients aged 40, 24 and 65 years. In all cases, the course of the paraneoplastic syndrom e ran parallel to the nasopharyngeal carcinoma. Discussion. Dermatomyositis is one of the numerous paraneoplastic syndromes associated with nasopharyngeal carcinoma. Systematic examination of the na sopharynx is required in case of dermatomyositis.