From the case:
Water lily (illustration)
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![](https://prod-images-static.radiopaedia.org/images/64823672/8d5291f1ffa0078a64e1dd55979354ed59f46d11ed88aea9655e379d8c48bc1a_big_gallery.jpeg)
Image generated with Bing.com by Mohammad Salem Amer.
Case Discussion
The water lily sign is described in hydatid cysts when detached endocyst membranes float within the pericyst giving the appearance of a water lily.
Image generated with Bing.com by Mohammad Salem Amer.