Abstract
Dermatomyositis is known as one of the skin diseases that is sometimes associated with malignant tumors. In Japan, there are many reports of cancers such as gastric cancer, colon cancer, but the merger case of hypopharyngeal cancer is extremely rare. The patient was a 69-year-old male. In January 2011, the patient was aware of a sensation of pharyngeal abnormality. He was admitted to our hospital in late December of the same year. The diagnosis of hypopharyngeal cancer was made. Weakness of the proximal arm muscles was observed and a diagnosis of dermatomyositis was made. When a malignant tumor is complicated, priority is given to the treatment of tumors. In the present case, postoperatively, muscle weakness was exacerbated and tapering of steroid therapy started. However, the effect was minimum and the ADL dropped. High dose gamma globulin therapy started. It is necessary to plan the treatment for hypopharyngeal cancer associated with dermatomyositis with careful consideration of ADL.