Hydatid cyst signs
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There are several signs of hydatid cysts seen associated with hydatid disease:
- cumbo sign: air is seen between the pericyst and the laminated membrane of the cyst
- serpent sign: internal rupture of the cyst with collapse of membranes of the parasite into the cyst
- water lily sign: endocyst floats freely in the cyst fluid
- spin sign / whirl sign: detached membranes with small pleural reaction seen in hydatid cyst of lung
- empty cyst sign: may be seen after complete evacuation of parasitic membranes
- crescent sign: a crescent-shaped rim of air at the lower end of the cyst (inverse crescent sign)
- honeycomb pattern: appearance of multivesicular cysts with multiple septa that represent the walls of daughter cysts
- +<a title="Congealed water lily sign" href="/articles/ball-of-wool-sign-hydatid-cyst">water lily sign</a>: endocyst floats freely in the cyst fluid </li>
- +<li>
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