MR Imaging of Bilateral Paramedian Thalamic and Mesencephalic Infarcts

Sparacia, Gianvincenzo; Iaia, Alberto; Cavarretta, G.; Mularo, V.; Fiamma, Maria Elena; Giovanna, Edvige Di; Midiri, Massimo

doi:10.1177/197140091002300108

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…2,3 There are several articles and case reports describing acute infarcts in bilateral paramedian thalamic nuclei and mesencephalon caused by occlusion of the artery of Percheron. [4][5][6] Aneurysm of the paramedian artery of Percheron is extremely rare. Herein, we have reported the case of a patient presenting with massive subarachnoid hemorrhage due to rupture of an aneurysm of the artery of Percheron.…”

Section: Discussionmentioning

confidence: 99%

A rare case of ruptured aneurysm of the paramedian artery of Percheron

et al. 2018

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Introduction The artery of Percheron is a rare anatomic variant supplying bilateral medial thalamic nuclei and a variable portion of the rostral part of midbrain. Case report A 48-year-old female with massive subarachnoid hemorrhage due to a ruptured aneurysm of the paramedian artery of Percheron presented to the emergency room. Because of significant risk of recurrent intracranial hemorrhage, it was decided to proceed with endovascular embolization of the aneurysm. The patient was ultimately sent to a rehabilitation center and her presenting neurologic deficits showed significant improvements in the weeks following endovascular embolization treatment. Discussion The paramedian artery of Percheron is a rare anatomic variant and subarachnoid hemorrhage due to aneurysm of this artery is exceedingly rare. This case underlines the importance of a correct evaluation of cerebral arterial anatomy in order to choose the best endovascular therapeutic approach, reduce complications, and optimize patient outcome.

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Section: Discussionmentioning

confidence: 99%

A rare case of ruptured aneurysm of the paramedian artery of Percheron

et al. 2018

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Clinical Features of Thalamic Stroke

Chen

Wang

et al. 2017

Curr Treat Options Neurol

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The thalamus plays an important role in different brain functions including memory, emotions, sleep-wake cycle, executive functions, mediating general cortical alerting responses, processing of sensory (including taste, somatosensory, visual, and auditory) information and relaying it to the cortex, and sensorimotor control. Thalamic stroke, both in isolation and in combination with infarcts involving other structures, are not rare. The functional complexity of the thalami nuclei and the not uncommon normal variations of arteries supply the thalamus induce wide variations in presentation of thalami infarcts. In patients with an unusual collection of deficits difficult to explain by a single lesion, in particular where there is impaired vigilance, thalamic disease should be considered which may mimic several different neurological conditions. By researching the literature, we found that the characteristic stroke syndrome of paramedian thalamic infarction is probably underdiagnosed. In addition to thalamic infarct, thalamic lesions can be caused by deep cerebral venous thrombosis with neuropsychological and radiological features that should be considered in the differential diagnosis of intracranial artery occlusion or bleeding, especially in young patients.

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MR Imaging of Bilateral Paramedian Thalamic and Mesencephalic Infarcts

Cited by 2 publications

References 5 publications

A rare case of ruptured aneurysm of the paramedian artery of Percheron

A rare case of ruptured aneurysm of the paramedian artery of Percheron

Clinical Features of Thalamic Stroke

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