Search Results

You are looking at 1 - 2 of 2 items for

  • Author or Editor: Lisa K. Pearson x
  • Refine by Access: All Content x
Clear All Modify Search

A 4-year-old Holstein cow from the Washington State University dairy was artificially inseminated 2 times during her second lactation. Pregnancy was diagnosed via transrectal palpation and confirmed with ultrasonography 33 days after the second artificial insemination. One fetus with an apparently normal heartbeat was detected during ultrasonography. The pregnancy was confirmed at 75 and 185 days of gestation via transrectal palpation, and the cow calved after a gestation of 291 days. A clinically normal healthy calf was born, which was followed by the expulsion of a separate mass of hair-covered fetal tissues (Figure 1). The fetal tissues

Restricted access
in Journal of the American Veterinary Medical Association


Case Description—A 2-year-old Quarter Horse was evaluated because of a progressive left-sided facial deformity and unilateral nasal and ocular discharge.

Clinical Findings—Physical examination revealed convexity of the left frontonasal region, left-sided nasal and ocular discharge, and decreased air flow through the left nares. Radiography and computed tomography revealed an extensively mineralized mass occupying most of the left paranasal sinuses.

Treatment and Outcome—The mass was surgically debulked, but complete removal was precluded because the mass was tightly adhered to the frontal and maxillary bones. Results of histologic examination of the mass were consistent with a diagnosis of osteoma. The horse developed transient pyrexia and colic following surgery, and postoperative radiography revealed gas opacities in the lateral ventricles of the brain, consistent with iatrogenic pneumocephalus. However, the horse did not develop any neurologic signs and was performing normally 2 years after surgery.

Clinical Relevance—Findings reinforce concerns that paranasal sinus surgery in horses can be associated with intracranial complications such as pneumocephalus. In horses with a mass involving the paranasal sinuses, computed tomography may be helpful in determining the boundaries of the mass and formulating a surgical treatment plan.

Restricted access
in Journal of the American Veterinary Medical Association