Hi,
Noted the history about your 16 year old grandson who has recurrent vomiting,
neck pain, CT scan of brain normal, gets admitted and has IV fluids and antibiotics with steroids gets okay for few days and has same problems again. Also has Neck glands.
You have mentioned projectile vomiting and in such a case
central nervous system has to have the problem or obstruction in proximal
small intestine.
If the CT scan of the brain is normal then it would betterfor the following:
Take an opinion for Neurological evaluation.
Spinal fluid tapping and examination for infection, tuberculosin,
meningitis may help for a proper diagnosis.
Another causes for enlargement of the lumps should be found out by
ultrasound of neck and glands, FNAC to know the cause, Biopsy to confirm and get treated as per the cause found.
Neck pain can be due to spinal fluid problems related to central nervous system.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, ENT & General Surgeon