case_images: PMC4584441_01
case_images: 62-year-old male patient with clinical history of unilateral sensorineural hearing loss and fracture of the right temporal bone in his infancy. CBCT of temporal bone: (a) Sagittal, (b) axial, (c) coronal, and (d) three-dimensional images with osseous volume rendering show the intrapetrous communication between the IJV and the SPS (red arrows) with an ascendant tortuous path, passing through the middle of the superior semicircular canal.
case_images: JCIS-5-46-g002.jpg
case_images: PMC4584441_01_JCIS-5-46-g002.jpg
case_images: F1
case_images: The otolaryngological exam was normal, but a Cone Beam Computed Tomography (CBCT) showed an intrapetrous communication between the IJV and the SPS, revealing an ascendant tortuous path passing through the middle of the ipsilateral superior semicircular canal. Three-dimensional bone and soft tissues volume renderings were generated to demonstrate this anatomical variant [Figures 1 and 2].
case_images: 62-year-old male patient with clinical history of unilateral sensorineural hearing loss and fracture of the right temporal bone in his infancy. 3D soft tissues volume rendering: (a) shows intrapetrous communicationpath (red arrows); (b) inferior view shows IJV bulb, (white star); (c) superior semicircular canal (yellow arrow); (d) 3D osseous volume rendering shows SPS canal (black arrow).
case_images: JCIS-5-46-g003.jpg
case_images: PMC4584441_01_JCIS-5-46-g003.jpg
case_images: F2
case_images: The otolaryngological exam was normal, but a Cone Beam Computed Tomography (CBCT) showed an intrapetrous communication between the IJV and the SPS, revealing an ascendant tortuous path passing through the middle of the ipsilateral superior semicircular canal. Three-dimensional bone and soft tissues volume renderings were generated to demonstrate this anatomical variant [Figures 1 and 2].