Giant kidney worms in a patient with renal cell carcinoma

Jemima Kuehn, Lindsay Lombardo, William M. Janda, Courtney M.P. Hollowell*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Dioctophyma renale (D. renale), or giant kidney worms are the largest nematodes that infect mammals. Approximately 20 cases of human infection have been reported. We present a case of a 71-year-old man with a recent history of unintentional weight loss and painle haematuria, passing elongated erythematous tissue via his urethra. CT revealed a left renal mass with pulmonary nodules and hepatic lesions. On microscopy the erythematous tissue passed was identified as D. renale. On subsequent renal biopsy, pathology was consistent with renal cell carcinoma. This is the first reported case of concomitant D. renale infection and renal cell carcinoma, and the second reported case of D. renale infection of the left kidney alone.

Original languageEnglish (US)
Article numberA361
JournalBMJ case reports
StatePublished - Mar 7 2016

ASJC Scopus subject areas

  • General Medicine


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