The<unk>  is one of the most common clinical syndromes of brain stem caused by the decreased blood supply to the lateral medulla. It is also commonly known as Wallenberg's syndrome or posterior inferior cerebellar artery syndrome (PICA). The most common cause is thromboembolic occlusion of vertebral arteries. It was described in 1895. The<unk>  is basically a manifestation of the vaso-occlusive disease of intracranial vertebral arteries (ICVA) such as vertebral artery or posterior inferior cerebellar artery. The various pathophysiologic mechanisms involved can include; atherosclerosis, athero-embolic phenomenon (heart, aorta, or vertebral arteries), dissection and increased vascular tortuosity, vascular insufficiency, Virchow’s triad play an important role in understanding the pathogenesis of Wallenberg's syndrome.
Lateral medullary syndrome
Anterior spinal artery syndrome
Adrenomyeloneuropathy
Acute flaccid myelitis
Amyotrophic lateral sclerosis
Cerebellar stroke syndrome
Anton-Babinski syndrome
Cauda equina syndrome