Inferior temporal quadrantanopia associated with pituitary adenomas and a potential mechanism of excessive optic nerve bending.

Background: Pituitary adenomas show typical visual field defects that begin superiorly and progress inferiorly. The cause of atypical visual field defects that start inferiorly remains unclear. This study aimed to understand this phenomenon using magnetic resonance imaging (MRI).

Mentalizing can be Impaired in Patients with Meningiomas Originating in the Anterior Skull Base.

Objective: Mentalizing is an essential function of our social lives. Impairment of mentalizing due to meningiomas has not received attention because most patients return to their social lives after surgical treatment. We investigated the influence of meningiomas and their surgical resection on mentalizing.

Sympathetic Nervous Hyperactivity Impairs Microcirculation Leading to Early Brain Injury After Subarachnoid Hemorrhage.

Background: Although early brain injury (EBI) is recognized as a critical step following subarachnoid hemorrhage (SAH), its pathophysiology and underlying mechanisms remain poorly understood. Herein, we investigated the role of cerebral circulation in the acute phase using patient data and a mouse SAH model and evaluated its regulation via the sympathetic nervous system.

Methods: The cerebral circulation time and neurological outcomes in the human body were retrospectively examined in 34 SAH cases with ruptured anterior circulation aneurysms and 85 cases with unruptured anterior circulation cerebral aneurysms at Kanazawa University Hospital from January 2016 to December 2021.

Limb-shaking syndrome derived from the contralateral hemisphere following unilateral revascularisation for moyamoya disease.

Background: Moyamoya disease is a rare chronic steno-occlusive cerebrovascular disease. It may have variable clinical symptoms associated with cerebral stroke, including motor paralysis, sensory disturbances, seizures, or headaches. However, patients with moyamoya disease rarely present with involuntary movement disorders, including limb-shaking syndrome, with no previous reports of limb-shaking syndrome occurring after revascularization procedures for this disease.

Intraorbital Solitary Fibrous Tumor Requiring Preoperative Embolization of Feeding Artery.

Solitary fibrous tumors (SFTs) are derived from mesenchymal cells and commonly develop in thoracoabdominal organs; however, their occurrence in orbit is rare. The first-choice treatment is to surgically remove as much of the SFT as possible; however, if total removal is not achieved, the recurrence rate is high, resulting in poor prognosis. A 42-year-old man presented with painless right-sided proptosis and diplopia 4 years ago.