Presentation
Incidental finding.
Patient Data
CT of the abdomen and pelvis demonstrates the isolated cyst near the posterior segment of the right hepatic lobe.
Also, there is chronic aortic dissection involving the descending aorta from the aortic isthmus till the level of renal arteries origin.
Left renal stone noted.
Posterior parahepatic cyst (arrow).
Case Discussion
First of all you need to differentiate this cystic structure with peritoneal carcinomatosis. But absence of oncology anamnesis, singularity of this finding, absence of contrast enhancement allow to go away from this diagnosis.
It is typical posterior parahepatic cyst, a completely benign incidental cystic lesion.