My 16 year old son presented with a kidney stone in his left kidney, then a week and a half later, one in his right kidney, markedly worse pain the second time, and with vomiting. Not able to catch the stone either time, but he's been referred to a nephrologist that we'll be seeing soon. He's somewhat underweight and doesn't fit any of the usual risk factors. Lab work ordered by primary doc came back with trace amounts of blood in urine still, and 24 hour urine collection shows normal lab values, save for cystine, which we haven't gotten back yet. Family history on my dad's side of stones. E.R doc for the second stone said he was making the nephrology referral because due to my son's age and stones in both kidneys so closely timed, he suspected cystine stones. If all other lab values have come back normal but we don't yet know his cystine levels, does that pretty much point to cystine stones?
Hello and welcome,
Cystine stones are usually rare in teen age. The disease that causes cystine stones runs in families (autosomal recessive) and result from a genetic disorder which causes cystine to leak through the kidneys and into the urine in high concentration. This leads to crystal formation that tend to accumulate into stones. Assessments of cystine excretion, stone analysis are few investigations which may help. Do write to me again with more details. Keep us posted on how he is doing.
Take care and regards!
Copyright 1994-2016 MedHelp International. All rights reserved.
MedHelp is a division of Aptus Health.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.