How common can be the absence of a kidney?

1 in 1000 cases.

If two such cases occur on the same day. What probability exists?

1 probability in 1000000 cases.

Today I observed two such cases on a single day at ARDISS IMAGING & DIAGNOSTIC CENTRE.

That makes it interesting.

A boy aged approximately 21 years had complaints of pain abdomen. He appeared for ultrasound at Ardiss Imaging Centre, Greater Noida, one of the centres of excellence for such investigations.

Absence of a kidney shocked him. He was not ready for the news. His mother accompanied him, and she continued conversation multiple times to ensure that what was being conveyed was true.

His father made a call and again confirmed.

They were so anxious to know the further implications of the condition.

I made them comfortable by giving factual positioning of the case that they need not worry. It happens and generally does not cause any untoward outcome, though risk for infection or renal stone increases. Therefore, to be on safe side, general precautions have to be taken for keeping the kidney healthy.

In the evening, another case landed.

He was a 34 years old man and had developed dengue.

For him it was a news that a kidney was absent.

He was not much anxious. He was only worried that whether his insurance payment for dengue will be affected or not.

But it was a day ONE in TEN LACS. When two people appeared on the same day and both had a single congenitally absent kidney.