Body odor and pubic hair describe premature adrenarche or early production of the adrenal hormones that are normal in our bodies, what we need to rule out is an abnormal production of these hormones due to tumor, or an enzyme block such as in congenital adrenal hyperplasia or early puberty perhaps.
So if his hormones were fine and his bone age was not advanced I am very confused why they want an mri, here is why I am confused, the adrenal gland makes a bunch of hormones that contribute to our secondary sexual characteristics like body odor, curly hair in the pubic and axillary area and acne, but also can stimulate rapid growth hence the bone age assessment.
Puberty itself is related to the pituitary, this presents with testicular enlargement and penile enlargement at times, this is early puberty and not necessarily caused by the adrenal problem, this needs an mri of the pituitary, not an isolated adrenal problem.
His labs that you have provided are normal but not complete
workup for adrenarche includes 17-OH progesterone which is the hormone that is very very elevated with the enzyme block problems of congenital adrenal hyperplasia, also dheas and androstenedione, which will show mild elevation in benign adrenarche but very high elevations should something else be wrong.
A bone age is also helpful and not advanced is a good thing.
maybe an ultrasound of the adrenal gland may help.
You need to sit down with this peds endo and discuss what their thoughts are. He is 6, an early age for adrenarche, but if he is african american or hispanic this leads to a little earlier surge of the normal adrenal hormones but not progression. If he is overweight this too can contribute some and if he was premature for some reason this too can lead to an earlier rise in these normal hormones.
The thing we worry about in boys is if we also find enlargement of the testes then we worry about the pituitary or other source of male hormones.
So go back to your ped endo and set up a conference with your husband and sit down and go over all the labs and what is really necessary, If they found nothing other than a little pubic hair and the bone age is not advanced, it is not unreasonable to monitor him every 4-6 months for growth spurts, change in exam or change in his bone age.(I usually don't get repeat bone ages any more frequent than 6 months apart if that)
Talk with them. Get this cleared up, the cost is too much for you to take on without a clear need
thank-you i received a cancellation call with another ped endo and have a appt next week to see someone else. I spoke with the ped endo referenced above and she was very short and unpleasant on the phone. She said no need to make an appt and come back in again, her suggestion is for the mri but could give me no insight into why. I am not a Dr, but I am a college educated person that does work in the pharma arena. I just do not specialize in ped drugs or scientific work involving children. THANK-YOU SO MUCH, You have been extremely helpful and have also reinforced for me that I definately should go for a second opinion.You offered a short concise way to help explain to me whats going on. My Sons current dr could have accomplished this in 15 seconds but did not take the time to do so or maybe didn't think we were smart enough to understand. thanks again
You are very kind, thanks and hope that the next doc is helpful