Oct 19, 2023 · The gyrus rectus, or straight gyrus, is located at the most medial margin of the inferior surface of the frontal lobe 1,2. Its function is unclear but it may be involved in higher …

Case Discussion The gyrus rectus is located in the floor of the anterior cranial fossa superior to the prechiasmatic optic nerves and the optic chiasm. Herniation of the gyrus rectus can be …

The inferior surface of the frontal lobes usually consists of gyrus rectus (aka straight gyrus) (R) separated from the medial orbital gyrus (M) by the olfactory sulcus (yellow arrow). These are …

The flame-shaped hemorrhage in the gyrus rectus (seen above) is highly suggestive of an anterior communicating artery aneurysm. Immediate vascular imaging (CTA/DSA) is crucial for …

Jun 30, 2024 · It is divided into two parts, by two sulci. Most medial, and running anteroposteriorly is the olfactory sulcus, which separates the long thin medial gyrus rectus (straight gyrus), from …

Acute infarct left gyrus rectus extending superiorly to the cingulate gyrus, left head of caudate nucleus and anterior aspect of the left lentiform nucleus. Scattered subcortical punctate …

Prolapsed rectus gyrus on the right between the right anterior cerebral artery and right internal carotid artery compresses the prechiasmatic right optic nerve.

Sep 13, 2020 · The medial orbital gyrus is separated from the gyrus rectus (or straight gyrus) by the olfactory sulcus medially. Laterally lie the anterior and posterior orbital gyri.

Small right parieto-occipital scalp hematoma. Subtle small acute hemorrhage within the right inferior frontal lobe (gyrus rectus) which is best seen on the coronal and sagittal reformats.

Aug 4, 2025 · These hematomas result from the rupture of an aneurysm that abuts the surface of the brain and the pressure of the blood leaving the aneurysm dissecting into the brain …