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Abstract

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Article in Japanese

Case Report

A case of community-acquired pneumonia due to infection with Neisseria meningitidis

Taishi Shimomuraa,b  Keeya Sunatab,c  Takahiro Fukuib  Tetsuo Tanib  Yohei Funatsub  Hidefumi Kohb 

aDepartment of Nephrology Medicine, Anjo Kosei Hospital
bDivision of Pulmonary Medicine, Department of Internal Medicine, Tachikawa Hospital
cDivision of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine

ABSTRACT

We report the case of a 70-year-old man presenting with a high fever, sore throat, and wet cough who was admitted to our hospital with a clinical diagnosis of community-acquired pneumonia. Chest radiograph and chest computed tomography on admission showed infiltrative shadow in the right middle lobe. Blood culture results were positive for Neisseria meningitidis as determined by culture growth on chocolate agar and confirmed by mass spectrometry. A 14-day course of sulbactam/ampicillin resulted in resolution of his clinical symptoms and imaging findings. N. meningitidis is a gram-negative diplococcus that is a resident bacterial species detected in sputum culture. However, as observed in this case, N. meningitidis can occasionally be identified as the etiologic agent of community-acquired pneumonia. As such, this pathogen should be considered as part of the differential diagnosis of this condition.

KEYWORDS

Pneumonia  Neisseria meningitidis  Invasive meningococcal disease 

Received 12 Jul 2020 / Accepted 29 Oct 2020

AJRS, 10(2): 149-152, 2021

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