Small Animal Radiology and Ultrasound: A Diagnostic Atlas and Text

Chapter Six The Spine 695
Fig. 6-41 A 9-year-old female
mixed breed dog with polyuria and
polydipsia. There are multiple focal
lytic areas without sclerosis in the
lumbar vertebrae, particularly in the
laminae and dorsal spinous
processes. Differential diagnoses
include multiple myeloma and
metastatic neoplasia. Diagnosis:
Multiple myeloma.
Fig. 6-42 A 10-year-old male
German Shepherd dog with polyuria
and polydipsia. There is diffuse
osteopenia of the cervical vertebrae.
Differential diagnoses include
hyperparathyroidism (primary or
secondary), hyperadrenocorticism,
multiple myeloma, and hyperthyroidism.
Diagnosis: Multiple
myeloma.
FIG. 6-43 A 9-year-old neutered
male domestic short-haired cat has
pain at the thoracolumbar region.
There is a radiolucent erosion of the
endplates of T11 and T12. Other
structures are within normal limits.
Diskospondylitis was considered the
most likely diagnosis. The cat was
anesthetized for an aspirate of the
lesion and a mass was noted in the
frenulum of the tongue. An aspirate
of the spinal lesion and a biopsy of
the tongue mass were performed.
Diagnosis: Squamous cell carcinoma
of the tongue with metastasis
to T11 and T12.