Watanabe M, Okuda R, Ishida Y, Sagawa S, Muraoka T, Ikeda S, Sawazumi T, Takemura T, Hagiwara E, Ogura T. Hypersensitivity pneumonitis with
Paecilomyces as suspected inciting antigen.
Respir Med Case Rep 2024;
49:102013. [PMID:
38559328 PMCID:
PMC10975500 DOI:
10.1016/j.rmcr.2024.102013]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 04/04/2024] Open
Abstract
A 73-year-old man visited our hospital for persistent cough. Chest high-resolution CT (HRCT) showed infiltration shadows in lower lobes and diffuse ground glass opacities in the upper lobes. Blood tests showed elevated white blood cell, C-reactive protein, surfactant protein D, and Krebs von den Lungen-6 levels. After an antigen avoidance test, his HRCT and blood test findings improved; we diagnosed him with hypersensitivity pneumonitis (HP). A culture of the rotting interior walls within his home revealed Paecilomyces, which we believe caused his HP. Given the few patients with Paecilomyces-induced HP, systematic approach was important to identify the inciting antigen.
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