Mechanized Pneumonia Secondary to Legionella Infection with Diarrhea as the First Manifestation: a Case Report
Abstract
BACKGROUND
Legionella is a Gram-negative bacterium, and Legionella pneumonia is an atypical pneumonia, clinically similar to Streptococcus pneumoniae or other bacterial pneumonia, with respiratory symptoms as the most common clinical manifestation, but very few patients have a predominantly GI symptom presentation, which often leads to delayed treatment; timely and effective standardized treatment has a good prognosis, and individual patients can develop mechanized pneumonia. Therefore, we report a case of Legionella infection with diarrhea as the first manifestation secondary to mechanized pneumonia.
METHODS
bronchoscopy, percutaneous lung aspiration biopsy, infection pathogen macrogenomics next-generation assay (mNGS).
RESULTS
The patient was examined by bronchoscopy and NGS was performed suggesting the presence of Legionella and poorly absorbed by the treated pulmonary lesion condition. Therefore, we further improved the pathology of percutaneous lung puncture biopsy suggesting the presence of mechanized pneumonia and gave the patient symptomatic treatment.
CONCLUSIONS
For severe pneumonia with non-respiratory symptoms as the first manifestation, we need to clarify the infecting pathogen as early as possible, and we also need to evaluate the anti-infective efficacy in a timely manner. After a full course of treatment with active pathogen coverage and imaging suggesting poor absorption, bronchoscopy or percutaneous lung biopsy should be perfected in a timely manner to…
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