Conversation: The conversation between human and AI assistant.
[|Human|] Hello, about a month ago I was in the hospital for an abdominal problem. That was resolved but I noticed on the ct. scan it showed a 1cm hypodense lesion in my left kidney. The notes said it was possibly a cyst. No one addressed that. Should I be concerned and bring it to the attention of my dr?
[|AI|]  Hi, Thanks for writing in. It is in most probability a harmless cyst. These are thin walled fluid containing balloon like structures. After age of 50 years one or two cysts are expected and taken as normal. If the size is more than 3 CMS then it is best to get review ultrasound scan after 3 months to 6 months. There is an international classification of kidney cysts and any cyst above 3 CMS might have a rare possibility of being dangerous. Since your cyst is 1 cm in diameter, there is no need to worry, and you can get an ultrasound scan after 1 year for peace of mind. Please do not worry.