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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 Providers(s):CDC/ Dr. Mae Melvin
Creation Date:1979
Photo Credit:
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.