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History

A 3-week-old male French Bulldog was submitted for necropsy after sudden death with no history of previous clinical disease. The affected puppy had 2 other siblings in the same litter. According to the referring veterinarian, 1 of the 2 remaining puppies had also died suddenly with no evidence of clinical disease. The third dog remained healthy.

Clinical and Gross Findings

Gross findings in the necropsied dog included disseminated, dark red, irregular foci of hemorrhage ranging from 1 to 3 mm in diameter distributed throughout the gastrointestinal serosa and pulmonary pleural surface as well as on the hepatic and renal

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in Journal of the American Veterinary Medical Association

Abstract

In collaboration with the American College of Veterinary Pathologists

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in Journal of the American Veterinary Medical Association
History

A 6-week-old female mixed-breed piglet with a history of respiratory tract disease died unexpectedly after a short period of dyspnea and was submitted for necropsy. The piglet was part of a small group of piglets raised for research purposes and was the only one that developed clinical signs.

Photograph of the abdominal and thoracic cavities (A) and heart (B) of a piglet that died with dyspnea of short duration. Pale yellow strands of fibrin cover the hepatic capsular surface, intestinal serosa, and pulmonary pleural surface. The pericardial sac is distended as a result of fluid and fibrin

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in Journal of the American Veterinary Medical Association
History

A 3-month-old sexually intact male mixed-breed lamb was submitted for necropsy at the Federal University of Santa Maria Laboratory of Veterinary Pathology after a 6-day history of neurologic signs. Two lambs from the same farm had previously died after developing similar clinical signs. All affected individuals were part of a herd of 20 sheep; the animals were raised in an extensive grazing system and all lambs were dewormed with doramectin and moxidectin 20 days before the onset of clinical disease.

Clinical and Gross Findings

Antemortem physical examination of the lamb performed by the referring veterinarian revealed progressive clinical changes

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in Journal of the American Veterinary Medical Association

Abstract

In collaboration with the American College of Veterinary Pathologists

Open access
in Journal of the American Veterinary Medical Association
History

An 8-year-old sexually intact male white alpaca was submitted for necropsy after being referred to a private veterinary hospital because of a history of circling and ataxia for a few hours.

Clinical and Gross Findings

Physical examination performed by the referring veterinarian did not reveal any other abnormalities, but the clinical signs rapidly progressed and the alpaca died 24 hours later. No neurologic examination was performed. At necropsy, the carcass was in good body condition. A well-demarcated, sessile, white, and firm nodule measuring 3 cm in diameter was attached to the gingival surface of the gum at the level

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in Journal of the American Veterinary Medical Association
History

A 9-year-old spayed female domestic shorthair cat was evaluated at a private veterinary clinic because of a 24-hour history of not drinking water following routine vaccination against rabies virus, feline herpesvirus-1, feline calicivirus, and feline panleukopenia virus.

Clinical and Gross Findings

Physical examination revealed dehydration; the cat was administered fluid therapy and discharged from the clinic. Nine days later, the cat was returned to the same clinic because of anorexia. A diagnosis of upper respiratory tract infection was made, and the cat was treated with doxycycline and supplemental lysine, PO, for 10 days. Thoracic radiography did not reveal any

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in Journal of the American Veterinary Medical Association
History

An 8-week-old female backyard Polish Frizzle chicken with a history of ill thrift was euthanized at the owner's request and submitted for necropsy. The chicken never fully developed after hatching and had a poor body condition, compared with that of other chickens hatched at the same time.

Clinical and Gross Findings

On external examination, blood was exiting the cloaca. The ceca were bilaterally enlarged and dark red and internally contained abundant dark red material in the lumen (Figure 1). A nodular, soft protuberance was palpated on the dorsal surface of the cranium. Longitudinal sections of the skull

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in Journal of the American Veterinary Medical Association
History

A 6.5-year-old 8.5-kg (18.7-lb) neutered male domestic shorthair cat was submitted for necropsy after development of acute dyspnea and its subsequent death.

Clinical and Gross Findings

The cat died en route to the veterinary clinic, and no physical examination was conducted. The carcass was submitted for necropsy. Gross examination revealed a good body condition with adequate body fat stores. The abdominal cavity contained 400 mL of unclotted blood. The mesentery and intestinal serosa at the ileocecocolic junction were dark red. The cecum was transmurally thickened and had blood clots attached to the serosa (Figure 1). In these

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in Journal of the American Veterinary Medical Association
History

A 14-year-old spayed female Vietnamese potbellied pig underwent an exploratory laparotomy after recurrent episodes of anorexia and severe abdominal distention over an approximately 5-year period. The latest episodes had occurred in the 24- to 48-hour period before surgery.

Clinical and Gross Findings

The pig had undergone a similar procedure 5 years earlier because of an episode of intestinal obstruction. During that procedure, a colonic mass was resected and diagnosed as a colonic adenocarcinoma. Subsequent episodes of anorexia and abdominal distention continued to occur after the first surgical procedure. The second exploratory laparotomy revealed another colonic mass located at the

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in Journal of the American Veterinary Medical Association