Radiology Packet 18

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Radiology Packet 18

• Spine - Myelogram

2
9 yr old male RottweilerKaiser

• HX presented for evaluation of ataxia, has been
  occuring for 6 weeks and has ascended from the
  hind limbs to the forelimbs

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9 yr old male RottweilerKaiser
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9 yr old male RottweilerKaiser
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9 yr old male RottweilerKaiser

• 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
6 yr old FS mix breed dogLady

• HX Presented for an acute rear limb paralysis
  but has had a long history of some hind end
  weakness

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6 yr old FS mix breed dogLady
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6 yr old FS mix breed dogLady
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6 yr old FS mix breed dogLady

• 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

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7 yr old female Bearded CollieSheba

• HX presented with neck pain and left-sided root
  signature

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7 yr old female Bearded CollieSheba
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7 yr old female Bearded CollieSheba

• 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

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7 yr old MC Doberman

• HX none

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7 yr old MC Doberman
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7 yr old MC Doberman
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7 yr old MC Doberman
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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

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6 yr old FS Mix Breed DogMaggie

• HX presented for progressive hind-end ataxia

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6 yr old FS Mix Breed DogMaggie
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6 yr old FS Mix Breed DogMaggie
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6 yr old FS Mix Breed DogMaggie
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6 yr old FS Mix Breed DogMaggie

• 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/os include plasma cell
  myeloma, lympohsarcoma