Cystic lesions are fluid-filled sacs that can develop in various tissues of the body. They can occur in organs such as the liver, kidneys, or lungs and may vary in size. While many cystic lesions are benign and do not cause symptoms, some may require monitoring or treatment, especially if they grow or cause discomfort. These lesions can be identified through imaging techniques like ultrasound, CT scans, or MRI. The exact cause of cystic lesions can differ, ranging from developmental issues to infections or blockages. Proper diagnosis is essential to determine the appropriate management or intervention if needed.