Role of Positron Emission Tomography-computed Tomography in a Case of Suspected Paraneoplastic Inflammatory Polymyositis with Urinary Bladder Tumor.

Idiopathic inflammatory myositis is characterized by rapidly progressive, symmetric weakness of the muscles that produce severe disability. In the majority of these patients, myositis appears to be a paraneoplastic feature associated with cancer. Fluorodeoxyglucose positron emission tomography-computed tomography has been increasingly used in the detection and evaluation of occult malignancy responsible for the paraneoplastic syndromes.