Presentation is loading. Please wait.

Presentation is loading. Please wait.

Type 4 CSF leak (SLEC-N). Type 4 CSF leak (SLEC-N). A, Schematic depiction of a distal nerve root sleeve dural tear occurring beyond the epidural compartment.

Published byΖώσιμος Κοντόσταυλος Modified over 5 years ago

Similar presentations

Presentation on theme: "Type 4 CSF leak (SLEC-N). Type 4 CSF leak (SLEC-N). A, Schematic depiction of a distal nerve root sleeve dural tear occurring beyond the epidural compartment."— Presentation transcript:

1 Type 4 CSF leak (SLEC-N). Type 4 CSF leak (SLEC-N). A, Schematic depiction of a distal nerve root sleeve dural tear occurring beyond the epidural compartment extravasating into the surrounding fascial planes and loose connective tissue without loculation or fistulization. B, CT of the head. Sagittal reformat in a patient negative for SLEC demonstrates large low-density (bilateral) subdural hemorrhages (asterisk). Note the prominent “venous distension sign” (short arrow) despite the large subdural hemorrhages. C, Axial CT image obtained 10–20 minutes post-DSM shows subtle extravasated contrast in the region of the right C8 nerve (arrow). Note that on this nondynamic CT (slightly degraded due to beam-hardening artifacts associated with the shoulders), there is little to help distinguish this extravasated contrast from a normal diverticulum. D, Subtracted image from a right-side-down decubitus DSM shows extravasation of contrast (arrows) into the paraspinal tissues from a leak along the mid-to-distal right C8 nerve root sleeve. R.I. Farb et al. AJNR Am J Neuroradiol 2019;40: ©2019 by American Society of Neuroradiology

Download ppt "Type 4 CSF leak (SLEC-N). Type 4 CSF leak (SLEC-N). A, Schematic depiction of a distal nerve root sleeve dural tear occurring beyond the epidural compartment."

Similar presentations

Axial T1-weighted image after contrast administration (A) and a FLAIR image (B) demonstrating a left parietal subcortical DVA with deep venous drainage.

Axial T1-weighted image after contrast administration (A) and a FLAIR image (B) demonstrating a left parietal subcortical DVA with deep venous drainage.
Patient with 5/10 concordant, bilateral, occipital head, CVJ, and upper neck pain. Patient with 5/10 concordant, bilateral, occipital head, CVJ, and upper.

Patient with 5/10 concordant, bilateral, occipital head, CVJ, and upper neck pain. Patient with 5/10 concordant, bilateral, occipital head, CVJ, and upper.
Acquired cochlear nerve deficiency in a 14-year-old patient with hearing loss after meningococcal meningitis at the age of 6 months (patient A3). Acquired.

Acquired cochlear nerve deficiency in a 14-year-old patient with hearing loss after meningococcal meningitis at the age of 6 months (patient A3). Acquired.
A 30-year-old man with PSA

A 30-year-old man with PSA
A 20-year-old man with HD. A, Neutral axial gradient-echo image at the C5 level demonstrates subtle bilateral LOA along the lateral aspects of the lamina.

A 20-year-old man with HD. A, Neutral axial gradient-echo image at the C5 level demonstrates subtle bilateral LOA along the lateral aspects of the lamina.
A and B, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)

A and B, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)
Axial contrast-enhanced CT scan demonstrates normal jugulodigastric lymph nodes bilaterally (curved arrows), which should not be confused with lesions.

Axial contrast-enhanced CT scan demonstrates normal jugulodigastric lymph nodes bilaterally (curved arrows), which should not be confused with lesions.
Demonstration of a bilaterally duplicated hypoglossal canal.

Demonstration of a bilaterally duplicated hypoglossal canal.
A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome. A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome.

A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome. A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome.
Intraosseous temporal bone meningioma in a 45-year-old woman who presented with left-sided hearing loss and tinnitus. Intraosseous temporal bone meningioma.

Intraosseous temporal bone meningioma in a 45-year-old woman who presented with left-sided hearing loss and tinnitus. Intraosseous temporal bone meningioma.
Image shows appearance of septum within dural sinus in a 68-year-old woman with normal results of an MR imaging examination. Image shows appearance of.

Image shows appearance of septum within dural sinus in a 68-year-old woman with normal results of an MR imaging examination. Image shows appearance of.
A–C, Case 5. A–C, Case 5. Axial CT images at 1 month after birth show bilateral frontal and parietal calcifications (arrows). D–F, These calcifications.

A–C, Case 5. A–C, Case 5. Axial CT images at 1 month after birth show bilateral frontal and parietal calcifications (arrows). D–F, These calcifications.
TOS with C8 neuropathy. TOS with C8 neuropathy. A 17-year-old girl (trumpet player) with left arm and hand weakness in an ulnar distribution, exacerbated.

TOS with C8 neuropathy. TOS with C8 neuropathy. A 17-year-old girl (trumpet player) with left arm and hand weakness in an ulnar distribution, exacerbated.
A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome. A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome.

A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome. A 30-year-old woman with Zika virus infection with Guillain-Barré syndrome.
Multiple acute nerve root avulsions.

Multiple acute nerve root avulsions.
A, Axial source image from a contrast-enhanced MRA unambiguously demonstrates a tiny (

A, Axial source image from a contrast-enhanced MRA unambiguously demonstrates a tiny (
Case 1, extranodal orbital involvement in Rosai-Dorfman disease.

Case 1, extranodal orbital involvement in Rosai-Dorfman disease.
Postembolization CT image, demonstrating the presence of peritumoral hemorrhage at the anterior and inferior aspect of the embolized tumor, which is depicted.

Postembolization CT image, demonstrating the presence of peritumoral hemorrhage at the anterior and inferior aspect of the embolized tumor, which is depicted.
A, Sagittal T2WI MR image demonstrates a typical intraspinal extramedullary arachnoid cyst. A, Sagittal T2WI MR image demonstrates a typical intraspinal.

A, Sagittal T2WI MR image demonstrates a typical intraspinal extramedullary arachnoid cyst. A, Sagittal T2WI MR image demonstrates a typical intraspinal.
42-year-old male patient with follow-up neck CT for lymphoma at 70 kVp (A) and corresponding previous CT at 120 kVp (B). 42-year-old male patient with.

42-year-old male patient with follow-up neck CT for lymphoma at 70 kVp (A) and corresponding previous CT at 120 kVp (B). 42-year-old male patient with.

Similar presentations

Ads by Google