Eccrine Chromhidrosis and Bilioptysis in Type 1 Autoimmune Pancreatitis.

Autoimmune pancreatitis (AIP) is a rare form of pancreatitis. This case report focuses on type 1 autoimmune pancreatitis (AIP-1), an immunoglobulin G4 (IgG4)-related disease. It is characterized by dense infiltration of lymphocytes and plasma cells, primarily in a periductal distribution.