Annals of The Japanese Respiratory Society:A case of <i>Pneumocystis</i> pneumonia presenting as a mass lesion on imaging

Abstract

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Article in Japanese

Case Report

A case of Pneumocystis pneumonia presenting as a mass lesion on imaging

Kenichiro Sakai^a Yutaka Ueda^b Hiroshi Miyawaki^b Yasunori Tojo^a

^aDepartment of Respiratory Medicine, National Hospital Organization Takamatsu Medical Center
^bDepartment of Respiratory Medicine, Kagawa Prefectural Central Hospital

ABSTRACT

A 44-year-old woman with nephrotic syndrome and 8 months of steroid therapy presented for evaluation of exacerbated edema that occurred when the dose was decreased. The dose had been increased 1 month before presentation. Imaging revealed tumor shading across the left lower lobe of the lung. Serum β-D-glucan levels were high. Pneumocystis pneumonia (PCP) was diagnosed by biopsy and bronchial washings. On imaging, PCP generally appears as ground glass opacification, and not as a tumor shadow. PCP presenting as a mass is extremely rare in someone not infected with HIV.

KEYWORDS

Pneumocystis pneumonia (PCP) Nephrotic syndrome Mass lesion

Received 20 Sep 2018 ／ Accepted 28 Jan 2019

AJRS, 8(3): 173-177, 2019

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Abstract

Case Report

ABSTRACT

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