2025年3月19日 · Idiopathic intracranial hypertension (IIH), also known as pseudotumor cerebri, is a syndrome with signs and symptoms of increased intracranial pressure but where a causative mass or hydrocephalus is not identified.

Negative findings on neuroimaging are part of the diagnostic criteria for idiopathic intracranial hypertension (IIH), a syndrome characterized by increased intracranial pressure (ICP). Some positive neuroimaging findings are associated with increased ICP, but their role in diagnosis of IIH has not been established.

2001年1月1日 · In this report, we describe the case of a 9-year-old male patient with IIH without papilledema for which MR imaging of the optic nerves and pituitary gland provided important clues to the diagnosis of IIH and showed a return to normal appearance after normalization of …

Magnetic resonance imaging (MRI) and venography by MRI or venous MR angiography (MRA) are essential for the diagnosis of IIH, because they allow the neuroimaging aspects of the syndrome to be characterized, as well as allowing other structural causes of increased intracranial pressure, especially cerebral venous thrombosis, to be excluded.

MRI and MRV are readily accessible imaging tools for initial evaluation and confirmation of intracranial hypertension, detection of secondary causes, and initial diagnosis of idiopathic intracranial hypertension.

2021年2月1日 · MRI and magnetic resonance venography findings are important tools in the diagnosis of IIH. Empty sella turcica, optic nerve protrusion, distension of the optic nerve sheath, optic nerve tortuosity, posterior globe flattening, and transverse sinus stenosis have been found to be the most promising di …

Increased intracranial pressure in IIH patients may cause a number of abnormalities detected on MRI, including an empty sella, posterior globe flattening, perioptic subarachnoid space (PSAS) distension, optic nerve sheath thickening, optic nerve tortuosity, Meckel cave enlargement (2), and transverse sinus stenosis (2–7).

The primary role of brain imaging in idiopathic intracranial hypertension (IIH) is to exclude other pathologies causing intracranial hypertension. However, subtle radiologic findings suggestive of IIH have emerged with modern neuroimaging.

Idiopathic intracranial hypertension Case ... The MRI sequences demonstrate: vertical tortuosity of the optic nerves; enlargement of the subarachnoid space around the optic nerves; flattening of the posterior sclera bilaterally; protrusions of the optic nerve heads ; partially empty sella turcica

2024年9月5日 · Background: Idiopathic intracranial hypertension (IIH) has been associated with several MRI features. We assessed types of MRI findings and clinical-radiologic correlations in patients with IIH from one hospital system. Methods: A retrospective chart review of IIH and control patients was conducted. Brain MRI/magnetic resonance venogram ...