Tuberculous pyomyositis: a case report

Piomiosite Tuberculosa: Relato de Caso

Leandro Fernandes1; Edgard Torres dos Reis Neto2; Marcia Aparecida Pozo Pereira1; Mirela Carla da Costa Baretta1; Adagmar Andriolo1

1 Federal University of Sao Paulo, Discipline of Internal Medicine and Clinical Pathology/Medicine Laboratory of the Department of Medicine of the Federal University of Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil.
2 Federal University of Sao Paulo, Discipline of Rheumatology, Department of Medicine of the Federal University of Sao Paulo (UNIFESP), Sao Paulo, Sao Paulo, Brazil.

DOI: 10.1900/JBPML.2022.58.430

ABSTRACT
Female patient, 29 years old, with systemic lupus erythematosus in current use of prednisone and azathioprine, presents with bulging in the forearms, lumbar region and left thigh for 15 days. Ultrasonography and magnetic resonance imaging showed the presence of  serous collections in these locations. The material was punctured and the samples were sent to the laboratory. The microbiological examination revealed the presence of acid-resistant bacilli and blood culture in a specific medium was positive for Mycobacterium tuberculosis. Molecular and immunochromatographic tests were positive for M. tuberculosis, and the diagnosis of Tuberculous Piomyositis was closed.
Key words: pyomyositis; tuberculosis; abscess.

RESUMO
Paciente do sexo feminino, 29 anos de idade, com diagnóstico de lúpus eritematoso sistêmico em uso atual de prednisona e azatioprina, se apresenta com abaulamentos em antebraços, região lombar e coxa esquerda há 15 dias. A ultrassonografia e a ressonância magnética evidenciaram presença de coleções nesses locais cuja punção do material revelou presença de bacilos álcool ácido resistentes e a hemocultura, em meio específico, foi positiva para Mycobacterium tuberculosis. O teste molecular e imunocromatográfico também foram positivos para M. tuberculosis, com diagnóstico final de Piomiosite Tuberculosa.
Palavras-chave: piomiosite; tuberculose; abscesso