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Papillary necrosis with invasive fungal infections: a case series of 29 patients.


ABSTRACT:

Background

Renal papillary necrosis (RPN) is associated with a number of comorbid conditions. However, it has been rarely reported in patients with fungal infections of the kidney.

Methods

We analyzed medical records of our hospital for the last two decades and identified 29 patients with fungal infections and RPN.

Results

Among the 29 patients, there were 24 men and 5 women. The median (range) age at presentation was 31.2 years (2 days-73 years). Three patients (10%) were kidney transplant recipients. The remaining had varied co-existing medical conditions that included diabetes mellitus in 16 (55%) and septicemia in 4 (14%). Clinical features at presentation were fever and oliguric kidney failure in 17 patients and loin pain accompanied by passage of fleshy material per urethra in 11 (38%). Diagnosis was made ante-mortem in 17 (59%) patients. Twenty patients (69%) had infection limited to the kidneys, while in the rest, it was disseminated. Kidney involvement was bilateral in 17 patients (59%). Urinalysis showed pyuria in 23 (79%) and microhematuria in 8 (28%) patients. Fungal infections included candidiasis (69%), aspergillosis (21%) and zygomycosis (10%). Of the 17 patients in whom the diagnoses was made ante-mortem, 12 survived and 5 died. Overall mortality was observed in 48% of cases.

Conclusions

We herein report a series of patients with RPN associated with fungal infections of the kidney. Presentation varies from asymptomatic urinary tract infection to severe kidney failure with poor outcome. High index of suspicion is necessary to reduce the associated high mortality in these patients.

SUBMITTER: Gupta KL 

PROVIDER: S-EPMC4898327 | BioStudies | 2013-01-01

REPOSITORIES: biostudies

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