ReviewBMC infectious diseases2025
Psittacosis pneumonia with the reversed halo sign: a case report and literature review.
Review in BMC infectious diseases, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed.
- The Brief Case: Multisystem extrapulmonary manifestations associated withJournal of clinical microbiology · 2026Review
- Detection ofItalian journal of food safety · 2026Article
- Observational
- Efficient and Accurate Pneumonia Detection Using a Novel Multi-Scale Transformer Approach.Sensors (Basel, Switzerland) · 2025Article
- Psittacosis chlamydia pneumonia complicated with organizing pneumonia: a case report and literature review.Frontiers in medicine · 2025Article
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Authors and funding
7 authors.
Funding
Abstract
backgroundChlamydia psittaci is a rare pathogen that causes community-acquired pneumonia. The reversed halo sign (RHS) is a computed tomography (CT) finding that is commonly observed in diseases such as cryptogenic organizing pneumonia, invasive fungal infections, tuberculosis, sarcoidosis, and pulmonary thromboembolism, but has seldom been described in association with psittacosis pneumonia. CASE PRESENTATION: We report a case in which a 26-year-old man with a history of close contact with pigeons and chicken manure presented with fever and cough for 6 days. A CT examination revealed the RHS in the right lower lobe of the lung. Psittacosis pneumonia was diagnosed by metagenomic next-generation sequencing of the patient's bronchoalveolar lavage fluid. Treatment with omadacycline abolished his symptoms. We also discuss six other cases of psittacosis pneumonia with the RHS identified by literature search.
conclusionsWhen clinicians encounter patients with atypical pneumonia with the RHS and a history of contact with poultry, psittacosis should be considered.
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