A review of the radiographs obtained at ERCP from 31 patients with AID
S-related sclerosing cholangitis (ARSC) demonstrated intraluminal poly
poidal defects within the common bile duct and larger intrahepatic duc
ts in eight cases (26%). The radiological features from this subgroup
are described and correlated with the microbiological and histological
findings from biopsy specimens including two patients who underwent p
ost-mortem examination. At microscopy the polypoid lesions were demons
trated to consist of granulation tissue. The presence of these polyps
did not adversely affect the prognosis nor were they associated with a
ny particular infective agent. We propose recognizing the existence of
this entity by the term AIDS-related polypoid cholangitis (ARPC).