THE CHALLENGING DIAGNOSIS OF CONCOMITANT INFLAMMATORY MYOPHATY AND MYASTHENIA GRAVIS ASSOCIATED WITH THYMOMA: A CASE REPORT.

Thymomas can be either asymptomatic, being diagnosed as incidental findings during imaging tests, or can be the cause of thoracic symptoms due to mass effect, or even the cause of paraneoplastic syndromes. In this report, we describe the clinical case of a patient with thymoma, in which the clinical findings were suggestive of inflammatory myopathy, with signs of myasthenia gravis, which lead to difficulty in reaching the diagnosis.