Aug 19, 2025 · Spinal arachnoid cysts are relatively uncommon and may be either intradural (type III meningeal cyst) or extradural (type IA meningeal cyst). This article specifically focuses on …

Sep 17, 2025 · Arachnoid cysts are relatively common benign and asymptomatic lesions occurring in association with the central nervous system, both within the intracranial …

Oct 26, 2025 · Dorsal thoracic arachnoid web refers to a thickened band of arachnoid over the dorsal aspect of the cord. It usually causes a focal thoracic cord distortion with consequent …

Nov 9, 2023 · Spinal meningeal cysts can be classified according to a system published by Nabor et al. 2: type I: extradural meningeal cyst without neural tissue type Ia: extradural spinal …

Case Discussion This case illustrates the typical appearances of a spinal arachnoid cyst, and also demonstrates how challenging it can sometimes be to confirm the diagnosis.

Aug 28, 2025 · Neurenteric cysts (also sometimes spelled neuroenteric) are developmental lesions arising from endoderm, most commonly encountered in the spinal canal but also seen …

Dec 8, 2024 · The scalpel sign is described in dorsal thoracic arachnoid web on sagittal MRI spine studies. It relates to focal distortion of the thoracic cord, appearing anteriorly displaced.

Sep 14, 2023 · Spinal epidural cystic lesions are fluid-filled lesions within the spinal canal but outside the thecal sac. Their clinical significance is as a potential contributor to spinal cord or …

Oct 30, 2025 · Although both CT and conventional myelography are able to visualize the distortion, MRI is the modality of choice to assess cord signal change and to evaluate for the …

The CSF-intensity cyst-like lesion has features of a posterior intradural spinal arachnoid cyst. The thoracic spine is the most common location of spinal arachnoid cysts with predilection to occur …