From the case:
Serpent (illustration)
Download
Info
Image generated with Bing.com by Mohammad Salem Amer
Case Discussion
The serpent sign, is a sign described in hydatid disease.
During the active stage, the cyst consists of three layers: the exterior (pericyst), middle (ectocyst), and interior (endocyst). When the pressure within the cyst rises, the ectocyst may burst, requiring dissection from the pericyst. This collapsed ectocyst, within an intact pericyst, may be seen on ultrasonography, CT, and MRI and appears like a snake or serpent.
Image generated with Bing.com by Mohammad Salem Amer.
Unable to process the form. Check for errors and try again.