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  • Title: A clinicopathologic study of primary cholesterol hepatolithiasis.
    Author: Kondo S, Nimura Y, Hayakawa N, Kamiya J, Nagino M, Miyachi M, Kanai M.
    Journal: Hepatogastroenterology; 1995; 42(5):478-86. PubMed ID: 8751201.
    Abstract:
    BACKGROUND/AIMS: We conducted the present study in order to clarify the clinicopathologic features of primary cholesterol hepatolithiasis and compare them with those in primary calcium bilirubinate hepatolithiasis. MATERIALS AND METHODS: We reviewed the clinicopathologic features of 24 patients with primary cholesterol hepatolithiasis. The clinical symptoms were mild, and the median duration of symptoms was 5 years. RESULTS: In 22 patients complete stone clearance was obtained using percutaneous cholangioscopic lithotomy, partial hepatectomy, or their combination. The patients showed excellent clinical outcome (median follow-up period, 6 years) despite the absence of bilioenteric drainage. Stones have recurred in 4 patients, who remain asymptomatic. The histopathologic findings in 7 hepatectomized patients were compared with those in 7 patents with calcium bilirubinate hepatolithiasis. The inflammatory changes around the stone-containing duct, i.e., wall thickening, fibrosis, sludge formation, and glandular hyperplasia, were significantly milder in the cholesterol hepatolithiasis patients (p < 0.01 or p < 0.05). CONCLUSIONS: These clinical and histopathologic findings indicate that primary cholesterol hepatolithiasis should be regarded as a different clinical entity from calcium bilirubinate hepatolithiasis which has a close relationship with bile stasis and bacterial infection as etiological factors.
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