ID#: 5247
Caption:
Under a magnification of 128X, this photomicrograph revealed the presence of an ovum of the Oriental, or Chinese liver fluke, Clonorchis sinensis. After ingestion, the metacercariae encyst in the duodenum and ascend the biliary tract through the ampulla of Vater. Maturation takes approximately 1-month. The adult flukes, which measure 10-25mm X 3-5mm, reside in small and medium sized biliary ducts. See PHIL 5248 for a closer view of this C. sinensis egg.
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Content Provider(s): CDC/ Dr. Mae Melvin
Creation Date: 1979
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