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  • Title: [Spontaneous migration of large stones from the bile duct (author's transl)].
    Author: Safrany L, Schott B, Gnüge E, Neuhaus B.
    Journal: Dtsch Med Wochenschr; 1981 Sep 04; 106(36):1135-7. PubMed ID: 7261939.
    Abstract:
    Spontaneous migration of bile-duct stones through the papilla into the intestine was directly observed in two patients with choledocholithiasis. The mechanism of such spontaneous migration lies in the development of a pressure necrosis at the papilla causing a tear in its pore. Spontaneous migration of stone from the common bile duct can be assumed when endoscopic retrograde cholangiopancreatography reveals a balloon-shaped swollen papilla with a torn pore, and previously observed obstructive jaundice regresses in the presence of stone-free, though perhaps somewhat dilated, bile passages.
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