Nephropathy in association with annular psoriasis.

Occurrence of glomerular diseases in psoriasis is rare, although the number of reports is increasing in recent years. Different types of glomerular involvement have been reported but mesangioproliferative glomerulonephritis with IgA deposits, AA amyloidosis and membranous nephropathy are relatively common in association with psoriasis. The term 'psoriatic nephropathy' has been introduced recently. We contribute a case to the ongoing discussin regarding psoriatic nephropathy. Our patient had mesangio-proliferative glomerulonephritis (with IgG and C3 deposition) in association with annular psoriasis (rare variety of chronic plaque psoriasis). Presence of messangio-proliferative glomerulonephritis with IgG deposition is rare in association with psoriasis. The patient responded well to weekly methotrexate (15 mg) injection. Methotrexate has not been tried previously in psoriatic nephropathy or reported to be effective in it.