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Tinnitus is an abnormal perception of sound in the absence of external stimuli
.
Venous pulsatile tinnitus (Venous pulsatile tinnitus, VPT) is a special form of tinnitus, which is characterized by objective and subjective murmurs due to local venous abnormalities
Tinnitus is an abnormal perception of sound in the absence of external stimuli
Figure 1.
Figure 2.
A 58-year-old, 6-month history of pulsatile tinnitus in the right ear, with relief of mild neck compression
.
A.
Figure 2.
Figure 3.
Air on sinus sign
.
Axial plain CT showed a dehiscent sigmoid plate, and the air was adjacent to the right sigmoid:Figure 3.
Figure 4.
A and CTV show that the diverticulum of the sigmoid sinus invades the right temporal bone and mastoid air chamber
.
B.
Figure 4.
Figure 5.
Axial CT shows that the right sigmoid sinus plate (A) is thinner than the opposite side (B):
Axial CT shows that the right sigmoid sinus plate (A) is thinner than the opposite side (B):
Figure 6.
Globular jugular diverticulum, a mass of blood vessels behind the tympanic membrane
.
A.
Figure 6.
Figure 7.
Figure 7.
MIP MRV image shows that the left mastoid vein (green arrow) is slightly dilated, originating from the left sigmoid sinus.
This condition is usually a normal variant with no clinical significance, and occasional pulsatile tinnitus may occur:
Neurosurgery.
2021 Oct 13;89(5):760-768.
doi: 10.
1093/neuros/nyab299.
Venous Causes of Pulsatile Tinnitus: Clinical Presentation, Clinical and Radiographic Evaluation, Pathogenesis, and Endovascular Treatments: A Literature Review
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