Hydatid cyst signs

Last revised by Rania Adel Anan on 24 Feb 2022

There are numerous named imaging signs of hydatid cysts in echinococcal infection. There is considerable variability in the naming and definition of many of the signs in the literature. In general, the signs demonstrate the presence of laminated cyst membranes in various morphologies within a larger pericyst, with variable intervening material such as fluid, debris, or air, depending on the organ and stage of disease:

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