Allan-Herndon syndrome

Below you will find more information about Allan-Herndon syndrome from Medigest. If you believe that you are suffering from any of the symptoms of Allan-Herndon syndrome it is important that you obtain an accurate diagnosis from a medical professional to ensure that you obtain the correct medication or treatment for your condition. There are medical conditions that carry similar symptoms associated with Allan-Herndon syndrome and therefore the information provided by Medigest is offered as a guideline only and should never be used in preference to seeking professional medical advice. The information relating to Allan-Herndon syndrome comes from a third party source and Medigest will not be held liable for any inaccuracies relating to the information shown.


Allan-Herndon syndrome is categorized as an extremely rare hereditary disorder that causes severe mental retardation along with impaired speech ability, diminished muscle tone, as well as possible movement abnormalities. For most infants afflicted with this medical condition tend to develop normally during the first few months. However, when the child reaches more or less six months, the baby will appear weak and unable to hold up its head and may never learn to walk on their own.


Patients usually undergo CBC, urinalysis, sedimentation rate, serum protein electrophoresis as well VDRL test to derive a more definitive diagnosis.


Treatment for this medical condition is specifically tailored for each patient, and are usually supportive therapies for the metabolic disorders, myopathies, and genetic diseases, Orthopedic surgical interventions, bracing and physical therapy have been known to prolong the life expectancy of the patient.

Symptoms and Signs

Some of the symptoms that are associated with this syndrome include the wasting of muscles, experience of stiffness and weakness of the legs, movement abnormalities, as well as possible deformities of the facial and skull region. The patient may also find it difficult to speak and as well as gain control of the voluntary movements.


This genetic disorder is brought about the x-linked recessive pattern, a mutated gene that is located on the patient's x chromosomes. The male species are more prone to contract this disease than females.

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