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Query: UMLS:C0023241 (Legionella)
 6,990 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

This case report details the clinical picture of a renal transplant recipient infected with community acquired Legionella pneumonia. While it is more commonly associated as a nosocomial infection due to pathogenic organisms in a hospital's water supply, this case serves as a reminder to consider the patient's impaired cellular immune function when trying to diagnose community acquired pneumonia.
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PMID:Community Acquired Legionnaire's Disease in a Kidney Transplant Patient. 3086 62

Legionnaire's disease (LD) is a non-zoonotic atypical community acquired pneumonia (CAP) with several characteristic extra-pulmonary findings. Pending diagnostic test results, selected characteristic findings when considered together are the basis of clinical syndromic diagnosis and the basis of empiric antimicrobial therapy. Of the extra-pulmonary manifestation of LD, neurologic findings are among the most common, e.g., headache, mental confusion. In LD, encephalitis is rare as are myoclonus and seizures. This is a most interesting case of LD that presented with encephalitis, myoclonus and seizures. Pulmonary infiltrates developed early after admission. LD was suspected on the basis of otherwise unexplained characteristic findings, e.g., hypophosphatemia, elevated serum transaminases, microscopic hematuria, elevated ferritin, and empiric doxycycline therapy was started. The diagnosis of LD was further supported by prominent and persistent myoclonus and seizures, rare but characteristic neurologic findings in LD. On week 12 of hospitalization, he finally seroconverted with negative urinary antigen tests indicating his LD was due to a non-L. pneumophilia (serotype 01) strain. On doxycycline, he made a slow but complete recovery. We believe this is the first reported case of LD presenting with encephalitis, myoclonus, and seizures successfully treated with doxycycline.
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PMID:Legionnaire's disease presenting with encephalitis, myoclonus, and seizures: Successful treatment with doxycycline. 3138 57

Legionella causes 2-15% of community acquired pneumonia cases that require hospitalization and it is the second most common cause of serious pneumonia that needs admission in an intensive care unit. Since the first published case in 1980, there are a further 22 published case reports on the direct correlation between rhabdomyolysis, renal failure and Legionnaires' disease. All but two patients survived with antibiotics and dialysis. Clinicians should be cognisant of this established triad and correlation of Legionnaires' disease, renal failure and rhabdomyolysis, as failure to do so and initiate treatment early has proven to increase mortality significantly in affected patients.
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PMID:Established association of legionella with rhabdomyolysis and renal failure: A review of the literature. 3172 Feb 9


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