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Sulfadiazine-induced nephrolithiasis detected by spiral CT scan

Stephanie A Lee1, Christopher W James, Susan Szabo

  • 1Department of Internal Medicine at Christiana Care Health Services, Wilmington, Delaware, USA.

Delaware Medical Journal
|March 18, 2004
PubMed

Insights

Sulfadiazine treatment for cerebral toxoplasmosis can cause kidney stones (nephrolithiasis). Spiral CT scans show promise for diagnosing this complication, aiding early detection and management.

Area of Science:

  • Nephrology
  • Infectious Diseases
  • Radiology

Background:

  • Sulfadiazine is a key treatment for cerebral toxoplasmosis.
  • Nephrolithiasis is a recognized complication of sulfadiazine therapy.
  • Diagnosing sulfadiazine-induced nephrolithiasis has been radiographically challenging.

Observation:

  • Eleven patients with cerebral toxoplasmosis received sulfadiazine-based therapy between March 1999 and June 2002.
  • Four patients (36.4%) developed nephrolithiasis during treatment.
  • Patients received sulfadiazine for a median of 35.5 days before diagnosis.

Findings:

  • All four cases of nephrolithiasis were diagnosed using spiral CT scans.
  • Spiral CT imaging identified kidney stones in patients treated with sulfadiazine.
  • This suggests spiral CT may be a valuable tool for diagnosing this complication.

Implications:

  • Spiral CT may improve the diagnostic accuracy of sulfadiazine-induced nephrolithiasis.
  • Early diagnosis can potentially lead to timely intervention and management.
  • Further studies are warranted to confirm the sensitivity and specificity of spiral CT.

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