Musculoskeletal system Archives

Thyroid carcinoma with severe pulmonary metastasis in a dog.

7-years-old, French Bulldog. Respiration improved after BOAS surgery, but recently has become noisier. A CT-scan of head, neck and thorax was performed.

Description

In the right cranial cervical region, there is a soft tissue attenuating mass with heterogeneous attenuation, showing marked heterogeneous post-contrast enhancement (red arrows), located in the anatomical location of the right thyroid, which is not visible. The mass is highly infiltrative, with ill-defined margins.

The mass severely invades the adjacent soft tissues invading the cranial trachea (pink arrows), the laryngeal wall (purple arrows) and the wall of the cranial esophageal sphincter (blue arrows).

The right retropharyngeal lymph node is severely enlarged with homogeneous post-contrast enhancement (blue arrows).

In the thorax there is a thrombus that extends along the cranial vena cava slightly invading the right atrium (red arrows).

There are several small soft tissue nodules, with well-defined margins, spread throughout the lung parenchyma. They show marked heterogeneous post-contrast enhancement.

Diagnosis

Large mass highly infiltrative with aggressive characteristics located in the right cranial cervical region at the anatomical location of the right thyroid, consistent with a neoplastic process (infiltrative thyroid carcinoma, most likely).
Marked right retropharyngeal lymphadenopathy, consistent with metastasis.
Multiple pulmonary nodules, consistent with severe pulmonary metastasis.

Primary bone neoplasia and associated pathological femoral fracture with lung metastasis in a dog

14-years-old female Siberian Husky. An acute fracture of the right femur was seen. A CT of the right femur and thorax was performed.

CT scan Lung Metastasis Neoplasia Siberian Husky

Metaphyseal osteopathy (hypertrophic osteodystrophy) in a puppy

5-months-old female Weimaraner with fever, vomiting, cough and joint pain, as well as pain when opening the mouth. A full body CT-scan was performed.

CT scan Metaphyseal osteopathy Weimaraner

Canine elbow neoplasia with pulmonary metastasis

11-years-old male crossbreed was presented with a mass at the right elbow. A CT-scan of the elbows and thorax was performed

Crossbreed CT scan Neoplasia

Thoracic spinal mass with extradural extension in a dog

5-year-old male German Shepperd dog with pelvic limbs weakness. A mass at the level of thoracic vertebrae is detected during the general physical examination.
A thoracic spine CT is performed.

CT scan German Shepherd Neoplasia Spinal mass

Canine erosive joint disease

2-year-old male crossbreed dog, rescued with left forelimb lameness, decreased extension and flexion of the left shoulder and soft tissue swelling.
A shoulder CT-scan was performed.

Crossbreed CT scan Erosive joint disease

Multiple cervical and thoracic vertebral fractures in a dog

5-year-old male crossbreed hit by a car with tetraplegia and cervical pain. A cervico-thoracic spine CT was performed.

Crossbreed CT scan

Polyarthritis and lobar emphysema in a young dog

6-months-old male spanish hound. Three weeks ago, he presented with tachypnoea, fever, and apathy; he was diagnosed with bronchopneumonia. A blood culture was performed and Pasteurella canis was isolated. A few days ago, he started with painful joints and thoracolumbar spine.
A CT scan of fore limbs, pelvic limbs, thoracolumbar spine and thorax was performed.

CT scan lobar emphysema Polyarthritis Spanish Hound

Discospondylitis caused by migrating foreign body

2-year-old female, crossbreed dog. She has been avoiding any kind of activity for 4-5 weeks. Then she started with lameness of the right pelvic limb.

Crossbreed CT scan Discoespondylitis Foreign body

Sublumbar mass

8-years-old female boxer with pelvic limbs weakness and leishmaniosis. In the radiographic study of the lumbar spine, a soft tissue lesion with mineralizations at the ventral aspect of the vertebral bodies of L7-S1 was seen.
An abdominal CT was performed.

Boxer CT scan Neoplasia