question: Hi,I just want to inquire about my kidneys. Yesterday, I undergone kidney ultrasound and my left kidney was diagnosed with a Mild Caliectasis. My doctor told me that it was not due to crystals or infection because my result in urinalysis are normal. And my blood tests are even normal. I am going to Urologist this weekend. However, I would like to know your opinion of what would be the cause of my condition? Thanks!