Limits...
Bow Hunter's syndrome

Krasnokutsky MK - MedPix (2005)

View Article: MedPix Image - MedPix Case

Affiliation: Uniformed Services University

ABSTRACT

Diagnosis: Bow Hunter's syndrome

History: 58 year old male with one year history of feeling dizzy when turning his head to the right. His symptoms resolve each time once he returns his head to neutral position. No symptoms when the head is turned to the left or hyperextended.

Findings: Diagnostic angiogram: 1. Head in neutral position. Angiogram demonstrates normal caliber of the left vertebral artery. 2. Head in rotated position to the right (patient supine on the table with a small pad under his head). Angiogram demonstrates slight irregularity of the vessel distal to exit from f. transversarium at C1-2 level. 3. Head is hyperextended and rotated to the right to a greater degree than in #2. Angiogram demonstrates significant narrowing of the vertebral artery at C1-2 level with slowing of contrast passage. MRI/MRA demonstrates occlusion of the right vertebral artery.

Dxhow: Dynamic angiogram

No MeSH data available.


During this injection the patient's head was hyperextended by taking away a small head rest; and, turned to the right until his symptoms of dizziness were reproduced.  This angiogram of the left vertebral artery demonstrates marked narrowing and irregularity of both horizontal segments of the loop distal to foramen transversarium at C1-2 level.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=MPX1338&req=5

MPX1338_synpic27427: During this injection the patient's head was hyperextended by taking away a small head rest; and, turned to the right until his symptoms of dizziness were reproduced. This angiogram of the left vertebral artery demonstrates marked narrowing and irregularity of both horizontal segments of the loop distal to foramen transversarium at C1-2 level.


Bow Hunter's syndrome

Krasnokutsky MK - MedPix (2005)

During this injection the patient's head was hyperextended by taking away a small head rest; and, turned to the right until his symptoms of dizziness were reproduced.  This angiogram of the left vertebral artery demonstrates marked narrowing and irregularity of both horizontal segments of the loop distal to foramen transversarium at C1-2 level.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX1338&req=5

MPX1338_synpic27427: During this injection the patient's head was hyperextended by taking away a small head rest; and, turned to the right until his symptoms of dizziness were reproduced. This angiogram of the left vertebral artery demonstrates marked narrowing and irregularity of both horizontal segments of the loop distal to foramen transversarium at C1-2 level.

View Article: MedPix Image - MedPix Case

Affiliation: Uniformed Services University

ABSTRACT

Diagnosis: Bow Hunter's syndrome

History: 58 year old male with one year history of feeling dizzy when turning his head to the right. His symptoms resolve each time once he returns his head to neutral position. No symptoms when the head is turned to the left or hyperextended.

Findings: Diagnostic angiogram: 1. Head in neutral position. Angiogram demonstrates normal caliber of the left vertebral artery. 2. Head in rotated position to the right (patient supine on the table with a small pad under his head). Angiogram demonstrates slight irregularity of the vessel distal to exit from f. transversarium at C1-2 level. 3. Head is hyperextended and rotated to the right to a greater degree than in #2. Angiogram demonstrates significant narrowing of the vertebral artery at C1-2 level with slowing of contrast passage. MRI/MRA demonstrates occlusion of the right vertebral artery.

Dxhow: Dynamic angiogram

No MeSH data available.