Background
Syphilis is a multisystemic infectious disease with various presentation hence the designation “great imitator”. Even though renal involvement is rare, there is increasing reports of various renal lesions due to recent global resurgence of syphilis. Kidney involvement can be seen during the primary, latent, and tertiary stages of syphilis [1]. Various types of glomerulonephritis have been described. Nephrotic range proteinuria due to membranous nephropathy is the most common form. On the other hand, rapidly progressive glomerulonephritis pattern is an atypical and very rare presentation of syphilis, with only three case reports [2-4]. We report a case of immunocompetent patient presenting with hematuria, proteinuria and rapidly deteriorating renal function suggestive of RPGN.