Three patients with primary sclerosing cholangitis confirmed by histologic examination were treated successfully with prolonged (three to six months) common duct drainage. No steroids or antibiotics were used. They are alive 14, 5, and 1½ years postoperatively.
Oviedo MA, Volkmer D, Scanlon EF. Primary Sclerosing Cholangitis. Arch Surg. 1974;109(6):747-749. doi:10.1001/archsurg.1974.01360060017004