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Sulphadiazine-induced renal stones in a 63-year-old HIV-infected man treated for toxoplasmosis
Journal article   Peer reviewed

Sulphadiazine-induced renal stones in a 63-year-old HIV-infected man treated for toxoplasmosis

B.D. McGettigan, M. Hew, E. Phillips and A. McLean-Tooke
BMJ: Case Reports, Vol.2012(21 Sept 2012)
2012
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Abstract

A 63-year-old man was admitted for investigation of blurred vision and multiple ring-enhancing lesions on cranial MRI. Histopathological examination of tissue obtained at brain biopsy showed multiple Toxoplasma gondii cysts. He was started on a combination of sulphadiazine and pyrimethamine for cerebral toxoplasmosis and was subsequently diagnosed with HIV-1 infection. He then developed acute renal failure and flank pain and was diagnosed with bilateral vesico-uretric calculi requiring bilateral stent insertion. The retrieved renal calculi were negative for the common stones that are routinely tested for in our laboratory and had the macroscopic characteristics of a sulphadiazine stone. His renal failure responded to cessation of the sulphadiazine.

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