Bullous Pemphigoid as a Harbinger of Metastatic Cholangiocarcinoma - A Rarity.

Bullous pemphigoid (BP) is an autoimmune blistering disorder of the skin first described in 1953. A decade later, antibodies were described targeting the cutaneous basement membrane zone. The association of Bullous pemphigoid with malignancy is debatable1 but reported in many case reports.2-6 We report a 79 year old male with cholangiocarcinoma that presented with bullous pemphigoid as a paraneoplastic phenomenon.