My ten year old son has recently been dizzy after laying down in bed at night. He says the dizziness is in the back/top of his head. No symptoms of earache or nausea occur. Also, he has been having what I would describe as involuntary hand/arm gestures (he raises his right arm, and his fingers move rapidly). We just visited our pediatrician, and she recommended an MRI and referral to a neurologist. My son had two MRIs done earlier in life (both were performed due to symptoms of torticullus -- one at birth and one a couple of years ago. Both of these MRIs were read as normal). I am concerned about the radiation of MRIs, and I am not certain what the pediatrician may be looking for...she noted that the neurologist would likely order the MRI after we saw him.
Your ideas on a what this could be and the need/danger of another MRI.
Thanks for using the forum. I am happy to address your questions, and my answer will be based on the information you provided here. Please make sure you recognize that this forum is for educational purposes only, and it does not substitute for a formal office visit with a doctor.
Without the ability to examine you and obtain a history, I can not tell you what the exact cause of the symptoms is. However I will try to provide you with some useful information.
MRIs do not involve exposure to radiation, the entire MRI image is generated from changes in magnetic field, and these magnetic exposures are not considered harmful unless a person has hardware in their body such as a pacemaker. Therefore, the harmful effects of radiation seen with other imaging modalities such as CT scan and X-ray are not present.
Your son's symptoms could be due to a variety of things, but obviously one concern when involuntary movements of a limb occur are seizures. However, other possibilities include paroxysmal dyskinesias (a type of movement disorder that occurs with action or emotion), dystonia, choreathetosis (all types of abnormal movements that can be episodic, and have several causes including genetic, post-infectious, and others). The exact appearance of the movements will help the neurologist determine what type of movement it is and the potential causes. If these movements do not occur frequently, such that they may be absent at the neurologist's office, videotaping them and taking the video with you to the neurologist is a good idea.
Followup with your physicians is recommended.
Thank you for this opportunity to answer your questions, I hope you find the information I have provided useful, good luck.
Copyright 1994-2018MedHelp.All rights reserved. MedHelp is a division of Vitals Consumer Services, LLC.
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. MedHelp 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.