Case 216. Syphilitic lymphadenitis (42 y-o M)

       
 
Cervical lymph node biopsied from a febrile man with a high titer of TPHA
 
       

 

  A few spiral pathogens are identified in the granulomatous lesion by immunostaining for Treponema pallidum antigens, confirming the diagnosis of tertiary syphilis. Warthin-Starry's silver was negative.