<s>[INST] Hi, After a weekend of excruciating pain that my doctor and I thought might be a kidney stone, a CT scan revealed no stones, but what appears to be cysts (multiple) in the left quandrant of my liver. I was stunned and didn't ask questions. We are scheduling a follow-up CT with contrast, but I'm chewing my fingernails. What could this mean? [/INST] Hello, I hope you are well, hepatic cystic disease is a frequent, usually asymptomatic, benign entity, without a clear cause at its origin and that its diagnosis is made incidentally by performing imaging studies for another cause. According to their characteristics by the image studies can be classified in simple or complex, being very rare degeneration to malignant processes. Usually the behavior to follow a liver cyst is conservative, expectant, with ultrasound studies over time, without established pharmacological treatment. </s>