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Radiology Packet 18. Spine - Myelogram. 9 yr old male Rottweiler “Kaiser”. HX = presented for evaluation of ataxia, has been occuring for 6 weeks and has ascended from the hind limbs to the forelimbs. 9 yr old male Rottweiler “Kaiser”. 9 yr old male Rottweiler “Kaiser”.

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radiology packet 18

Radiology Packet 18

Spine - Myelogram

9 yr old male rottweiler kaiser
9 yr old male Rottweiler“Kaiser”
  • HX = presented for evaluation of ataxia, has been occuring for 6 weeks and has ascended from the hind limbs to the forelimbs
9 yr old male rottweiler kaiser3
9 yr old male Rottweiler“Kaiser”
  • RF
    • Large mineralized disc at C2-3.
    • Narrowing of the intervertebral disc space is present at C6-7.
    • There is narrowing of the dorsal and ventral columns at C6-7.
    • Ventrally the contrast is split over the body of C6 and the caudal body of C7.
  • RD
    • Compressive lesion at C6-7
    • Most likely extradural disc extrusion
  • Next
    • Surgery
6 yr old fs mix breed dog lady
6 yr old FS mix breed dog“Lady”
  • HX = Presented for an acute rear limb paralysis but has had a long history of some hind end weakness
6 yr old fs mix breed dog lady3
6 yr old FS mix breed dog‘Lady”
  • RF
    • Mineralized IV disc material T12-13, T13-L1, L2-3, L3-4, L4-5, L5-6, L6-7 and LS.
    • There is opacity over the intervertebral foramen at L2-3.
    • There is mild spondylosis present at T11-12.
    • There are two sites of dorsal deviation of the central subarachnoid contrast column, T13-L1 and L2-3.
    • On the lateral views the dorsal contrast column is narrowed beginning at T12 and extending to L1-2.
    • On the VD views the contrast column noticeably thins beginning at mid T10 and extending to mid L3.
  • RD
    • IV disc protrusion with spinal cord edema and swelling centered over T13-L1 disc space
    • Chronic disc protrusion at L2-3
  • Next
    • Surgery at T13-L1
7 yr old female bearded collie sheba
7 yr old female Bearded Collie“Sheba”
  • HX = presented with neck pain and left-sided root signature
7 yr old female bearded collie sheba2
7 yr old female Bearded Collie“Sheba”
  • RF
    • Calcified disc at C6-7.
    • There is thinning of the ventral and dorsal subarachnoid space on the lateral view at C6-7.
    • On the VD view there is a focal axial deviation of the left subarachnoid space at C6-7.
  • RD
    • Left-sided IV disc protrusion at C6-7
  • Next
    • Surgery
7 yr old mc doberman4
7 yr old MC Doberman
  • RF
    • Wedging of the C4-5, C5-6, C6-7, and C7-T1 IV disc spaces.
    • Mild dorsal tilting of the cranial aspect of C5 and C6.
    • On the myelogram views there is a focal dorsal elevation of the ventral contrast column at C6-7 with mild thinning of the dorsal contrast column.
    • The elevation is less severe on flexion of the neck, during traction of the neck the ventral column is still dorsally deviated but the dorsal column is slightly improved.
  • RD
    • Hypertrophy of the dorsal longitudinal ligament secondary to cervical instability (Canine Wobbler Syndrome)
  • Next
    • Surgery
6 yr old fs mix breed dog maggie
6 yr old FS Mix Breed Dog“Maggie”
  • HX = presented for progressive hind-end ataxia
6 yr old fs mix breed dog maggie4
6 yr old FS Mix Breed Dog“Maggie”
  • RF
    • Incidental finding of a transitional vertebra at the lumbosacral junction on the survey films.
    • There is a marked dorsal deviation of the dorsal contrast column at the cranial aspect of L2.
    • Loss of the ventral contrast column is present over the body of L2 and extending caudally over the L2-3 IV disc space.
    • There is a loss of the right contrast column over the body of L2, the left contrast column is attenuated but still visible at this level.
  • RD
    • Extradural compressive lesion at L2
    • Most likely cause is a mass lesion in the extradural space, r/o’s include plasma cell myeloma, lympohsarcoma