Case 154. Leptospirosis (71 y-o F)

　 　 　 　
　 Autopsied kidney of a housewife, presenting headache, muscle pain, jaundice and oliguric hematuria 　
　 　 　 　

　

 　 Warthin-Starry's silver demonstrates infection of finely spiral microbes in the renal interstitium, confirming the diagnosis of leptospirosis or Weil's disease (oil immersion).