Superficial middle cerebral artery territory infarction

Area of Science:

• Neurology
• Cerebrovascular Diseases
• Neuroimaging

Background:

• The superficial middle cerebral artery (MCA) territory irrigates a significant portion of the cerebral hemisphere's lateral surface.
• MCA ischemic stroke is the most common type of stroke within MCA pathology.
• Understanding the vascular territories and potential anatomical variations is key to interpreting MCA infarcts.

Purpose of the Study:

• To review the anatomical territories of the superficial MCA.
• To discuss the clinical manifestations associated with MCA infarcts.
• To emphasize the importance of etiological assessment in MCA ischemic stroke.

Main Methods:

• Literature review of MCA anatomy and ischemic stroke.
• Analysis of clinical presentations based on affected arterial territories.
• Discussion of diagnostic and etiological factors.

Main Results:

• The superficial MCA territory is divided into 12 distinct areas, though anatomical variations are common.
• Clinical symptoms vary depending on the specific artery affected, including personality changes, motor disturbances, disorientation, hemianopia, and hemineglect.
• Overlapping infarcts can lead to complex syndromes like insular syndrome and combined sensory, motor, or language deficits.

Conclusions:

• Embolic mechanisms are the primary cause of superficial MCA infarcts.
• A comprehensive neurovascular and cardiological evaluation is essential for effective patient management.
• Accurate diagnosis requires considering both anatomical variations and clinical presentation in MCA ischemic stroke.