A Case of a Patient with Dermatomyositis Who Developed a Diffuse Alveolar Hemorrhage

ABSTRACT

Dermatomyositis is a inflammatory myopathy associated with interstitial lung disease in 5~10% of cases. The occurrence of diffuse alveolar hemorrhage (DAH) is considered exceptional in the course of dermatomyositis. We experienced a case of DAH in a 58-year-old female with dermatomyositis. DAH was diagnosed by anemia, infiltration on chest X-ray and computed tomography, and a bloody aspirate on bronchoscopy. Combined Pneumocystis jiroveci (PJP) pneumonia was suspected, as the polymerase chain reaction for PJP was positive. After intravenous the administration of immunoglobulin and treatment for the PJP, she markedly improved but subsequently developed nosocomial pneumonia and died.