Time was ticking and I was unable to find the left kidney on a routine scan. Finally, I gave up and asked the patient for any previous history of any surgical removal or investigations suggesting absent kidney since birth. To my disbelief the patient pulled out a FAT file containing previous reports, which included a long list starting from a USG scan to x rays to nuclear scan, no need of mentioning the blood and urine investigations. All for one previous scan, which reported the size of the(non existing) left kidney and Viola!!! a calculus(stone) measuring 2.0 cm within it. Believe me, I lost all my conserved energies to rationalize and explain the things to the patient. That’s what I call loosing over a lost(absent) kidney. Finally convinced, the patient asked meekly what about the stone!!!!