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Biliary Calculus of Roundworm Origin

[+] Article, Author, and Disclosure Information

Dr. Raney was supported in part by Gastroenterology Traineeship grant T01-AM-0-5187-10, National Institutes of Health, Bethesda, Md.

▸Requests for reprints should be addressed to Gordon McHardy, M.D., 3636 St. Charles Ave., New Orleans, La. 70115

New Orleans, Louisiana

Ann Intern Med. 1970;72(3):405-407. doi:10.7326/0003-4819-72-3-405
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A 12-year-old negro boy with his second episode of jaundice is reported. A stone in the common bile duct contained a cuticle and multiple ova of Ascaris lumbricoides. Characteristics of Ascaris lumbricoides that predispose to formation of biliary stones are discussed. This is the first case of formation of a biliary stone due to ascariasis reported in the United States.





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