Ultrasonography of Osteosarcoma in Dogs
Sonography Atlas of Dogs

Sagittal ultrasonographic view following hemilami-nectomy at L2-3 showing an extruded intervertebral disc (arrow) in dog. Note the hyperechogenicity (*) present at the area of spinal cord compression, deviation of the ventral meningeal line, and inability to clearly visualize the central canal. sc, spinal cord; d, meninges; b, bone.

Bonelli, M.A., Tudury, E.A., Santos, C.R.O., Araújo, B.M., Diogo, C.C., Silva, A.C., & Costa, F.S.. (2015). "Intraoperative ultrasonography of the vertebral canal in dogs".  https://dx.doi.org/10.1590/1678-4162-7494

Dog, after removal of extruded disc material. The central canal (arrow) is visible just caudal to the still present hyperechoic area (*). At the moment of image capture, color Doppler is not showing any vessels. d, meninges; b, bone.

Bonelli, M.A., Tudury, E.A., Santos, C.R.O., Araújo, B.M., Diogo, C.C., Silva, A.C., & Costa, F.S.. (2015). "Intraoperative ultrasonography of the vertebral canal in dogs".  https://dx.doi.org/10.1590/1678-4162-7494

Transverse image of a dog after removal of  extruded disc material. The central canal is visible (arrow). d, meninges; b, bone.

Bonelli, M.A., Tudury, E.A., Santos, C.R.O., Araújo, B.M., Diogo, C.C., Silva, A.C., & Costa, F.S.. (2015). "Intraoperative ultrasonography of the vertebral canal in dogs".  https://dx.doi.org/10.1590/1678-4162-7494

Transverse image of a dog after removal of  extruded material, showing increased echogenicity in spinal cord parenchyma (arrow). sc, spinal cord; d, meninges; b, bone.

Bonelli, M.A., Tudury, E.A., Santos, C.R.O., Araújo, B.M., Diogo, C.C., Silva, A.C., & Costa, F.S.. (2015). "Intraoperative ultrasonography of the vertebral canal in dogs".  https://dx.doi.org/10.1590/1678-4162-7494

Sagittal ultrasonographic image of the spinal cord of a dog with a T11-12 fracture following laminectomy. Note the heterogenous hyperechoic image identified as fibrosis (arrow) caudal to the hypoechoic spinal cord. In red, vascularization seen with color Doppler. sc, spinal cord.

Bonelli, M.A., Tudury, E.A., Santos, C.R.O., Araújo, B.M., Diogo, C.C., Silva, A.C., & Costa, F.S.. (2015). "Intraoperative ultrasonography of the vertebral canal in dogs".  https://dx.doi.org/10.1590/1678-4162-7494

Sagittal ultrasonographic image of the spinal cord after laminectomy at T12, showing the spinal cord (sc) as it is dislocated dorsally by an altered and hypoechoic vertebral body (VB) due to neoplasia. Note that the central canal (c) is no longer visible directly over the compression.

Bonelli, M.A., Tudury, E.A., Santos, C.R.O., Araújo, B.M., Diogo, C.C., Silva, A.C., & Costa, F.S.. (2015). "Intraoperative ultrasonography of the vertebral canal in dogs".  https://dx.doi.org/10.1590/1678-4162-7494

Transverse ultrasonographic view of the spinal cord (sc) of a dog after removal of extruded disc material at the level of L2-3. c, central canal; b, bone. Note the acoustic shadowing of the distal edge of the cord (*).

Bonelli, M.A., Tudury, E.A., Santos, C.R.O., Araújo, B.M., Diogo, C.C., Silva, A.C., & Costa, F.S.. (2015). "Intraoperative ultrasonography of the vertebral canal in dogs".  https://dx.doi.org/10.1590/1678-4162-7494

Transverse ultrasonographic view of the spinal cord (sc) of a dog obtained via a laminectomy during the pilot study. c, central canal; d, meninges; b, bone.

Bonelli, M.A., Tudury, E.A., Santos, C.R.O., Araújo, B.M., Diogo, C.C., Silva, A.C., & Costa, F.S.. (2015). "Intraoperative ultrasonography of the vertebral canal in dogs".  https://dx.doi.org/10.1590/1678-4162-7494