Horner’s syndrome (also called oculosympathetic paresis, or Horner syndrome) comprises a constellation of clinical signs including the classic triad of ptosis, miosis, and anhidrosis. It results from a lesion to the sympathetic pathway that supplies the head and neck region.

Horner syndrome consists of unilateral ptosis, an ipsilateral miotic but normally reactive pupil, and in some cases, ipsilateral facial anhidrosis, all resulting from damage to the ipsilateral oculosympathetic pathway. Herein, we review the clinical ...

2023年4月10日 · Horner syndrome is a rare condition classically presenting with partial ptosis (drooping or falling of upper eyelid), miosis (constricted pupil), and facial anhidrosis (loss of sweating) due to a disruption in the sympathetic nerve supply.

Horner's syndrome, also known as oculosympathetic paresis, [1] is a combination of symptoms that arises when a group of nerves known as the sympathetic trunk is damaged. The signs and symptoms occur on the same side (ipsilateral) as it is a lesion of the sympathetic trunk.

In most cases, imaging of the sympathetic pathway according to the symptoms is warranted. Understanding the clinical features of the three types of Horner syndrome and their implications assists in localization of the underlying pathologic process and choice of imaging technique for the differential diagnosis of this complex entity.

2024年10月17日 · Horner’s syndrome is a rare neurological disorder characterized by a disruption in the sympathetic nerve pathway, leading to a distinct cluster of clinical signs. These include ptosis (drooping of the upper eyelid), miosis (constricted pupil), and anhidrosis (decreased sweating) on the affected side of the face.

Horner syndrome, known classically by its presenting triad of miosis (pupillary constriction), eyelid ptosis (drooping), and facial anhidrosis (decreased sweating), results from damage to the sympathetic pathways between the hypothalamus and ocular adnexa.

In conclusion, we believe that enophthalmos after SCG sympathectomy occurs through both parasympathetic fibers (which carry sympathetic neurotransmitters) and other alternative sympathetic neurohormonal pathways, especially via LCo and ventrolateral-periaqueductal gray matter (VLPAG).

2024年2月27日 · Horner syndrome can be anatomically classified into three types, depending on where the pathology affects the sympathetic pathway 1. Interestingly, postganglionic lesions do not tend to present with anhidrosis, as opposed to central or preganglionic lesions.

2022年5月13日 · Horner syndrome is caused by damage to a certain pathway in the sympathetic nervous system. The sympathetic nervous system regulates heart rate, pupil size, perspiration, blood pressure and other functions that enable you to …