An 8-year-old thoroughbred mare is evaluated for a 1-year history of infertility and atypical aggressive behavior. Physical exam ϐindings are normal except for an enlarged ovary discovered on rectal palpation. Ultrasonography demonstrates a multiloculated appearance of the enlarged ovary. Which of the following assays, when elevated, is the most consistent indicator of the presumptive diagnosis?

ادامه مطلب

In January you examine a group of dairy calves which range in age from 2 to 7 months, with a complaint of hair loss and pruritus. The calves are thin and mucous membranes are pale. One has developed bronchopneumonia, and is also febrile and depressed. You do a skin scraping and find the parasite shown in the image, which your technician identifies as Solenopotes sp. The CBC shows the calves …

ادامه مطلب

A trout fishery reports that many of the fish have gray-white, puffy growths on their fins, gills, and eyes. A direct smear from affected tissues shows the following findings (images below).

ادامه مطلب

An intact male whippet presents with an acute onset of swelling and pain in one of his testicles. Which one of the following tests is helpful to diagnose the cause of the swelling before surgery?

ادامه مطلب

Oral administration of which of these drugs has been implicated as a cause of esophageal strictures in cats?

ادامه مطلب

A backyard chicken is presented for laying less eggs than normal and listless behavior. Examination reveals tiny blackish brown specks moving around the hen's vent. Which one of the following is the most likely diagnosis?

ادامه مطلب

You see an 8-month old kitten with the effusive form of feline infectious peritonitis and perform euthanasia. The kitten was having severe diarrhea around the house when it became ill. The owner has a 2 year old cat at home and wants to know what this cat's prognosis is since it has been exposed to the sick kitten. Currently this cat is clinically healthy. What do you

ادامه مطلب

What is the purpose of placing a permanent rumen fistula in some cattle?

ادامه مطلب

A 2-year-old Quarter horse filly presents with a history of intense pruritis and alopecia in the perineal area (see image). The owners indicated that they noticed the filly rubbing her tail head and perineal area along fences for a period of one week. What diagnostic test will you use to confirm your top differential?

ادامه مطلب

A 13-year-old male castrated Golden Retriever is presented with respiratory distress.  A lateral thoracic radiograph is obtained. What is the primary abnormality visible in the radiograph?

ادامه مطلب