Αποτελέσματα Αναζήτησης
11 Ιουν 2024 · On imaging, they are characterized as well circumscribed cysts, with an imperceptible wall, displacing adjacent structures, and following CSF density on CT and CSF signal intensity on MRI (i.e. hyperintense on T2-weighted images with FLAIR suppression).
6 Μαρ 2020 · Mostly/purely cystic pituitary region masses have a short differential. Differential diagnosis. Rathke cleft cyst; arachnoid cyst; empty sella; craniopharyngioma (adamantinomatous type): 90% have calcification epidermoid cyst
Well-defined lobulated sellar and suprasellar cystic lesion measuring 42 x 26 x 20 mm, of CSF signal on all sequences with no restricted diffusion or enhancement on postcontrast sequences. It displaces the optic chiasma superiorly and pituitary stalk posteriorly with an almost empty sella.
The optimum imaging of the sella and parasellar region is with magnetic resonance (MR) imaging. Computed tomography (CT) imaging is complementary to MR imaging for the depiction of bony changes, including remodeling or frank bone destruction.
26 Φεβ 2021 · On MR, arachnoid cysts demonstrate normal CSF signal on all sequences, including FLAIR and DWI and CSF density on CT . The thin wall of the arachnoid cyst is not routinely identified on MR, although it can be visualized on high-resolution T2-weighted sequences such as CISS in few cases.
CT Recognition. Suprasellar arachnoid cysts are basal midline masses that represent a rare but surgically remediable cause of hydrocephalus and neurologic deficits. These cysts represent a diagnostic challenge and often go unrecognized for many years.
26 Μαρ 2023 · In CTC, a safe, nonionic iodinated contrast agent is injected intrathecally, and the amount of filling and the time it takes to fill the cyst (dynamic images) can be obtained from CT imaging of the ACs. When cysts fill quickly and completely, they are considered as freely communicating ACs and treatment management changes [26, 84 ...
