Soft neck can't lift up

Introduction Low muscle tone - paralyzed dyskinesia: involving the head and neck and the waist, such as the neck can not lift, the waist can not be straight and convex, walking can not step and lift the legs to the ground, this is a clinical manifestation of tardive dyskinesia .

Cause

(1) Muscle lesions of various causes cause damage to the two stretch receptors, causing hypotonia.

(2) Peripheral nerve and nerve root lesions cause gamma- afferent and efferent obstacles, causing hypotonia.

(3) Spinal cord lesions cause damage to -motor neurons and -motor neurons, causing hypotonia.

(4) Brain stem reticular structure, cerebellum, extrapyramidal, cerebral cortex and other diseases lead to central regulation of muscle tension, resulting in low muscle tone.

an examination

Related inspection

Cervical MRI

When the examination finds that the muscle tension is low, the distribution range and severity should be determined, and the positive signs of other aspects such as movement, sensation, and reflection of the nervous system must be combined, and the knowledge of neuroanatomy and physiology should be used for preliminary localization diagnosis, combined with the characteristics of medical history. And related auxiliary examination results, to make clinical diagnosis and differential diagnosis. There are many causes, and any lesion that affects the reflex arc can cause low muscle tone.

Differential diagnosis

The disease must be distinguished from the following diseases:

1. Drug-induced Parkinson syndrome due to DR is occupied by antipsychotic drugs or block endogenous DA can not bind to DR, although there is also a history of antipsychotics, but involuntary exercise shows decreased muscle tonic movement and eye movement crisis Wait.

2. Huntington's disease is based on the three major signs of genetic history, schizophrenia and dementia. It is difficult to identify with TD. HD patients also use antipsychotic health search. If there is sedation, it can't repeat or involuntarily involuntarily move to prompt TD.

3. Meige syndrome is a common type of oral dyskinesia complete type of mandibular dystonia health search, there are eyelids; non-complete type only oral, glossopharyngeal and mandibular dystonia health search or only primary Eyelids; no history of antipsychotics.

4. Turn the involuntary movement of fast, rigid and repetitive sputum without taking antipsychotics.

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