Articles by Allison Zwingenberger, DVM, DACVR, DECVDI - DVM
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Allison Zwingenberger, DVM, DACVR, DECVDI

A guide to finding foxtails
December 1, 2009

Dr. Allison Zwingenberger provides guidelines for identifying foxtails in dogs.

Weighing the evidence: Is it a benign or malignant bone lesion?
August 1, 2009

An owner brings an 8-year-old female, neutered Australian Shepherd with acute right forelimb lameness to your office.

How to ultrasound and evaluate the thyroid and parathyroid glands
February 1, 2009

One of the strengths of ultrasound imaging is its ability to resolve very small soft-tissue structures.

Is it megaesophagus or a normal variation?
August 1, 2008

Megaesophagus is a condition in which the esophagus has reduced peristalsis, and has poor tone at rest. The esophagus can have a mild, focal motility problem, or the entire organ may be dilated and functioning poorly.

Diagnostic Imaging: The subtleties in identifying a bronchial pattern
June 1, 2008

A bronchial pattern on radiographs indicates pathology involving the airways. It can be a subtle pattern to recognize, so let's look at some of the features.

Diagnostic Imaging: Ultrasound of cats with chronic renal disease not always black and white
April 1, 2008

Chronic renal disease is one of the most common ultra-sonographic findings in older cats. If you're doing ultrasounds on cats, you're sure to see signs of chronic renal changes daily.

Diagnostic Imaging: Skin mass or pulmonary nodule
March 1, 2008

Thoracic radiographs for metastatic disease are part of every day practice. A diagnosis of pulmonary nodules has an important effect on treatment decisions, and some radiographs are difficult to interpret.

Ultrasound of arterial and venous thrombosis
February 1, 2008

Thrombosis is a complication of many diseases in veterinary medicine.

Seeing is believing: The subtleties of peritoneal detail
January 1, 2008

One of the subtleties of interpreting abdominal radiographs is peritoneal detail.


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