Occlusion of the Superior Cerebellar Artery

Superior Cerebellar Artery Territory Infarction

“…First, the lateral lemniscus lies in close proximity to the pain pathways and may have also been spared. Secondly, if the damage to the lateral lem niscus was minor the bilateral projection from the chochlear nuclei may have masked any hearing impair ment [5].…”

“…Several etiol ogies for SCA infarctions have been proposed. These have included: vertebral artery dissection with embolism to SCA [14], basilar artery atherothrombosis [10,13], cardiac embolism [5,13], dissection associated with fibromuscular dysplasia [26] and migraine in combina tion with tobacco and birth control pill usage [12], A significant percentage of the strokes were presumed car dioembolic and a thorough cardiac investigation is nec essary in the appropriate clinical setting. Vertebral dis section, a well-known cause of vertebrobasilar stroke [10,14,29], occurred in 2 of our patients.…”

“…Most cerebellar infarctions occur in the distribution of the posterior inferior cerebellar artery (PICA) [1,2], Superior cerebellar artery (SCA) territory infarctions are rare [1,[3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. The SCA is the largest and most consis tent branch of the basilar artery [18][19][20].…”

Hearing disorders in brainstem lesions

“…The lateral superior pontine syndrome is caused by occlusion of the SCA and is characterized by sudden onset of ataxia of limbs and gait with falling to the side of the lesion, ipsilateral Horner's syndrome, horizontal nystagmus, contralateral face and body impairment of pain and temperature, and vertigo (Davison et al, 1935;Luhan and Pollack, 1953) (Table 29.9). Luhan and Pollack (1953) reported on 6 cases of occlusion of the SCA, 3 with postmortem verification.…”

“…Luhan and Pollack (1953) reported on 6 cases of occlusion of the SCA, 3 with postmortem verification. Hearing impairment was noted in 3 cases, was not reported in 2, and was "grossly normal" in 1.…”