<s>[INST] CT Scan shows a 12 mm cyst in the lower pole of the left Kidney also a 1.6 cm hypodense mass in the left adrenal gland as well a prominent extrarenal right renal pelvis is present. I have sarcoidosis in my lymph glands and my lungs . Are these cysts a concern or should I put it down to my sarcoidosis and just forget I have them? [/INST] Hi, Thanks for writing in. A 12 mm cyst in lower pole of left kidney is not a concern. However, you might get it followed up after 6 months by ultrasound scans to know any change in size and appearance. Cysts less than 30 mm are not of much importance. If you are above 60 years of age then an occasional cyst is an expected finding in the kidneys. The 16 mm hypodense area in the left a Chat Doctor.  </s>