A patient with coexistent bullous pemphigoid and primary membranous glomerulonephropathy.

Bullous pemphigoid has been rarely described in association with renal abnormalities, including membranous glomerulonephropathy, and it has been approximately 20 years since this association was last reported. We describe a case of a male patient with a concurrent onset of bullous pemphigoid and membranous glomerulonephropathy and discuss this rare association. A definite common immunologic mechanism that links the two disorders remains elusive.