Rothia mucilaginosa Pneumonia Diagnosed by Quantitative Cultures and Intracellular Organisms of Bronchoalveolar Lavage in a Lymphoma Patient
Annals of Laboratory Medicine
;
: 145-149, 2013.
Artigo
em Inglês
| WPRIM
| ID: wpr-216007
ABSTRACT
Rothia mucilaginosa is a gram-positive coccus of the family Micrococcaceae. R. mucilaginosa is considered a part of the normal flora of the human oropharynx and upper respiratory tract and lower respiratory tract infections attributable to R. mucilaginosa are not frequent. We present a case of pneumonia, in which the R. mucilaginosa infection was diagnosed by quantitative cultures of a bronchoalveolar lavage (BAL) specimen. A 46-yr-old woman with B lymphoblastic lymphoma was admitted to the hospital for scheduled chemotherapy. Her chest computed tomography (CT) scan revealed bilateral multifocal nodular and patchy consolidation in both lungs. Investigation of the BAL specimen revealed that 7% of leukocytes had intracellular gram-positive cocci. The quantitative cultures of the BAL specimen grew mucoid, non-hemolytic, and grayish convex colonies on blood agar at a count of approximately 200,000 colony-forming units/mL. The colonies were identified as R. mucilaginosa. The patient was empirically treated with levofloxacin for 7 days, after which findings on the chest radiograph and CT scan improved. She was discharged with improvement on hospital day 46. To our knowledge, this is the first report of R. mucilaginosa pneumonia diagnosed in Korea. Quantitative culture of BAL specimen and examination of intracellular organisms are crucial for assessing the clinical significance of R. mucilaginosa recovered from the lower respiratory tract.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Pneumonia
/
Líquido da Lavagem Broncoalveolar
/
Tomografia Computadorizada por Raios X
/
Pulmão
/
Linfoma
/
Micrococcaceae
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Limite:
Feminino
/
Humanos
Idioma:
Inglês
Revista:
Annals of Laboratory Medicine
Ano de publicação:
2013
Tipo de documento:
Artigo
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