Hi,
Liver calcification is usually nothing serious and can be due to necrosis because of drugs ,because of old infection or injury and can also be sign of excessive alcohol intake,you may be advised for a ct scan depending on your other examination findings.
Now for your kidney stone, I hope the size you mentioned is in mm and not cm and i would recommend any stone larger than 7mm to be removed surgically.
Kindly mention the location of stone and whether there are any other findings like hydron ...
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