title: Reactive knee and ankle joint arthritis: abnormal manifestation of Legionella pneumophila.
abstract: This case report demonstrates that active legionellosis is not always characterised by pulmonary symptoms and specific radiomorphological findings. Whereas the initial clinical presentation, as described in the literature, includes fever, cough, expectoration, extrapulmonary organ changes or typical laboratory findings, atypical manifestations such as reactive arthritis must be considered.
mesh_terms: D000328:Adult; D000843:Ankle Joint / Q000473:pathology*; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D016918:Arthritis, Reactive / Q000188:drug therapy / Q000209:etiology / Q000473:pathology*; D017291:Clarithromycin / Q000627:therapeutic use; D006801:Humans; D007719:Knee Joint / Q000473:pathology*; D016952:Legionella pneumophila / Q000276:immunology / Q000302:isolation & purification*; D007877:Legionnaires' Disease / Q000150:complications / Q000188:drug therapy / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D013902:Radiography, Thoracic; D036542:Tomography, Spiral Computed / Q000379:methods; D016896:Treatment Outcome
chemical_list: D000900:Anti-Bacterial Agents; D017291:Clarithromycin