Radiology Package 24

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Radiology Package 24

• Developmental

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4-month old Labrador Retriever
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4-month old Labrador Retriever

• RF
• There is a mild degree of soft tissue swelling.
• In the distal radial and ulnar metaphyseal
  regions of both forelimbs is an irregular
  radiolucent line just proximal to the distal
  physis.
• A region of sclerosis is noted proximal and
  distal to the radiolucent zone.
• Slight flaring of the distal metaphyseal region
  of both radii is present.
• There is a faint radiolucent zone or line present
  in the proximal metaphyseal region of the right
  radius with a mild degree of sclerosis and
  perhaps the left radius.
• A similar radiolucent zone is also present in the
  distal metaphyseal region of the 2nd and 5th
  metacarpals of the right metacarpus.
• RD
• Hypertrophic osteodystrophy

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9-month old F Pomeranian

• Hx Left rear limb lameness for several months
  duration. Painful with manipulation of hip joint.

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9-month old F Pomeranian

• RF
• Soft tissue atrophy, left thigh muscles
• Increased joint space width, left coxofemoral
  joint.
• Misshapen left femoral head with multiple
  radiolucent areas.
• Sclerosis and thickening of the left femoral
  head.
• Remodeling of the cranial and caudal aspects of
  the left dorsal acetabulum.
• RD
• Legg Calve Perthes disease
• Next
• Femoral head and neck excision

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5-month old Saint BernardZeke

• Hx Presented for evaluation of a right fore
  lameness. There is crepitus of the right elbow
  joint. Radiographs of the right elbow show
  deformity of the joint and secondary DJD. It is
  suspected that a fracture occurred in the elbow
  and healed in mal-alignment.

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5-month old Saint BernardZeke

• RF
• The distal radii are normal in appearance.
• The increase in metaphyseal opacity of the distal
  radii and distal ulnas is normal for the age of
  the patient.
• In both distal ulnas there is a flame-shaped area
  of lucency extending from the distal physis into
  the metaphyseal region of the bone.
• RD
• Retained cartilage core

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6-month Cairn TerrierChloe

• Hx Presented for evaluation of thickening of the
  mandibular area. She is reluctant to eat and
  lethargic. The left antebrachium is markedly
  thickened and painful to palpation. Films are
  provided from August and November.

November
August
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November
August
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6-month Cairn TerrierChloe

• RF
• In the initial radiographs there is marked
  periosteal response on the margins of the
  mandible. The periosteal response is irregular
  and has a frothy appearance.
• Mild thickening of both tympanic bulla is noted.
• The temporomandibular joint are distinctly seen
  and bony reaction is present in this area as
  well.
• Similar periosteal response is seen surrounding
  the diaphysis of the left radius and ulna.
• RD
• Craniomandibular osteopathy (CMO)
• Next
• Supportive care, CMO will resolve as the animal
  matures.
• Follow-up RF
• In the follow up radiographs the mandible is
  relatively normal in appearance. There is mild
  thickening of the ventral cortex of the bone and
  increased height of the horizontal ramus.
• Proliferative response is present in both
  tympanic bulla in the follow-up radiographs.
• The lesion in the left forelimb has regressed
  significantly in the follow-up radiographs. The
  distal ulna is thickened but the periosteal
  response has almost disappeared.

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6-month DLH Sassy

• RF
• There is diffuse decrease in skeletal opacity.
• The lumbar vertebrae are very lucent and there is
  marked lordosis of the lumbar spine.
• There is a fracture of the right ilial wing.
• The cortices of the femurs are thin.
• The colon is full of formed granular material.
• RD
• Diffuse femoral, pelvic, and lumbar vertebra bone
  loss
• Lordosis of the lumbar spine
• R/O
• Nutritional secondary hyperparathyroidism

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12-year old Labrador Retriever

• Hx Presented at your clinic for evaluation of
  swelling of the distal limbs and shifting leg
  lameness. PE confirms the presence of firm
  swelling of the soft tissues of all 4 lower
  limbs. Pain is noted on palpation of the limbs.

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12-year old Labrador Retriever

• RF
• Significant thickening of the soft tissues is
  present in the forelimbs.
• There is an irregular periosteal proliferative
  response involving the cortices of most of the
  long bones of the forelimb this involves the
  radii, ulnas, metacarpal bones and phalanges.
• The proliferative response is spiculated and is
  oriented perpendicular to the cortices.
• RD
• Hypertrophic osteopathy (HO)
• Next
• Thoracic radiographs
• Abdominal radiographs and ultrasound

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3-month old Akbash puppies

• Hx Balihisar is presented for radiographic
  evaluation. He is much smaller than his
  littermates and his limbs are shorted and
  thicker. Kizil is his normal littermate who is
  used for comparison.

Balihisar
Kizil
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Kizil
Balihisar
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3-month old Akbash puppies

• RF
• In the abnormal puppy the radius and ulna are
  short and abnormally curved.
• The radius is 5cm shorter and the ulna 6cm
  shorter.
• The metaphyses of the radius and ulna are flared
  when compared to the normal limb.
• The distal tip of the ulna lacks mineralization.
• RD
• Chondrodystrophic forelimb

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7-month old M German ShepherdCamanche

• Hx Presented for lameness of the right forelimb.
  Pain is noted when the right elbow is manipulated.

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7-month old M German ShepherdCamanche

• RF
• The right elbow is within normal limits.
• A large area of medullary opacity is present in
  the mid-diaphysis of the ulna.
• A similar area of medullary opacity is present in
  the proximal radial diaphysis.
• Distal to the area of increased opacity in the
  radial diaphysis is a lucent area.
• Mild increase in medullary opacity in the distal
  humeral diaphysis.
• The left elbow is normal.
• RD
• Panosteitis of the right humerus, radius and ulna

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8-year old DSHVelvet

• Hx Presented for evaluation of neck stiffness
  and an abnormal gait. The cat is fed a
  home-cooked diet of liver.

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8-year old DSHVelvet

• RF
• There is bony proliferation along the dorsal
  aspect of the cervical spine resulting in fusion
  of the spine.
• The bony proliferation extends to the caudal
  aspect of T2 not the widening of the base of
  the dorsal spinous processes of T1 and T2.
• RD
• Extensive bony exostosis with fusion of cervical
  spine
• R/O
• Hypervitaminosis A
• Next
• Diet change