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History

A 2-month-old 17.0-kg (37.4-lb) black and white crossbred gilt (Sus scrofa; 1/130 pigs) was found dead on the premises of a grower-finisher operation. There were no reported signs of sickness, and no other pigs were reported dead or ill at that time. Recently, the producer had changed the operation's feed supplier.

Gross Findings

On gross examination, the pig's pericardial sac contained approximately 20 mL of serous fluid mixed with a few strands of fibrin (Figure 1). The heart was pale brown with linear or splotchy subepicardial hemorrhages. The trachea contained white to pale pink foam

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in Journal of the American Veterinary Medical Association
History

A 3-year-old sexually intact female domestic shorthair cat was submitted to the Indiana Animal Disease Diagnostic Laboratory for postmortem examination. The cat had been taken to a low-cost spay-neuter clinic for routine ovariohysterectomy. No previous clinical signs were reported. Following induction of anesthesia, the cat became hypoxemic and was awakened from anesthesia; however, it died before radiography could be performed.

Gross Findings

At necropsy, the cat's body condition was good. A soft, gray-white, lobulated cranial mediastinal mass (approx 12 × 10 × 3 cm) occupied almost 75% of the thoracic cavity (Figure 1). The mass encircled the

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in Journal of the American Veterinary Medical Association
History and Clinical Findings

A 5.5-year-old 6.5-kg (14.3-lb) neutered male domestic longhair cat was submitted to the Indiana Animal Disease Diagnostic Laboratory for postmortem examination. The cat had been evaluated at the Purdue University Veterinary Teaching Hospital because of a 2-year history of hind limb ataxia that had progressively worsened to hind limb paraparesis during the preceding 2 weeks. The cat had a history of asthma that had been previously treated with corticosteroids by the referring veterinarian, but the cat was not currently receiving any medications for asthma. Thoracic radiography revealed a soft-tissue nodule in the left caudal lung lobe.

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in Journal of the American Veterinary Medical Association
History

A 2.5-year-old neutered male Bichon Frise crossbred dog was evaluated because of a sparsely haired, nonpruritic area on the left side of its neck. The lesion had been present for approximately 5 months and first appeared as 2 small areas that subsequently enlarged and coalesced. The dog reportedly had been injected with a killed rabies virus vaccine a and a combination vaccine b against distemper, hepatitis, leptospirosis, and diseases associated with parainfluenza virus and parvovirus by another veterinarian 1 month before the lesion appeared.

Clinical Findings

On initial evaluation, an alopecic patch (13 × 5 cm) with

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in Journal of the American Veterinary Medical Association
History

A 12-year-old Paint mare was evaluated at the Purdue University Veterinary Teaching Hospital because of a large ulcerated mass on the perineum. The horse was retired and kept on pasture; therefore, the owner had only recently noticed the mass because it interfered with defecation. Physical examination revealed that the superficial inguinal lymph nodes were large. Because of the poor prognosis and impracticality of surgically removing the mass, the owner elected euthanasia, and necropsy was performed.

Clinical and Gross Findings

A firm, raised, mottled dark red to tan ulcerated mass (13 × 10 × 4 cm) extended from the dorsal

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in Journal of the American Veterinary Medical Association
History

Two adult brown anoles (Anolis sagrei), also known as Bahama anoles, were evaluated because of multiple skin lesions. These lizards were from a pet store, where 3 groups of 10 to 15 lizards each were similarly affected. Brown anoles, green anoles (Anolis carolinensis), and members of an unknown species of grass lizard (Takydromus sp) from a captive-bred source were among the affected reptiles. Husbandry was deemed adequate. The lizards' diet consisted of dusted crickets and mealworms. A full-spectrum light source and red heating bulb were in use.

Clinical and Gross Findings

Skin lesions

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in Journal of the American Veterinary Medical Association
History

Twin ovine fetuses were submitted without fetal membranes for investigation of the cause of abortion. The male fetuses were near term with crown to rump lengths of 48 and 51 cm and body weights of 2.5 kg (5.5 lb) and 3.7 kg (8.1 lb). The dam was in a group with 6 other ewes; all ewes traveled off-site for artificial insemination. Vaccination status of the dam was unknown. All ewes in the group were clinically normal at the time of submission of the fetuses. Another ewe from the group had aborted about 1 month previously, but that fetus was

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in Journal of the American Veterinary Medical Association
History

A 3-month-old Angus-cross heifer in a 500-head beef herd developed an illness of short duration, which included signs of depression, lethargy, ataxia, and progressive weakness. The calf died and underwent necropsy the same day. No other animals at the farm had similar clinical signs.

Clinical and Gross Findings

At necropsy, the heifer was in fair body condition with adequate subcutaneous and abdominal adipose tissue; hydration status was fair. Autolysis was minimal. On cut surfaces, the iliopsoas and adductor muscles of the hind limbs were mottled pink to pale tan with irregularly shaped, variably sized, dark pink areas. The ventricular

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in Journal of the American Veterinary Medical Association
History

A 4-month-old female Huacaya alpaca was evaluated because of a poor coat and failure to thrive. According to the owner, the cria was born small and weak, with a skin condition. There had been no weight gain during the 3 months preceding the evaluation, despite its good appetite and the provision of good-quality nutrition.

Clinical and Gross Findings

On physical examination, the cria had generalized dry, scaly, lichenified skin, especially on the head, neck, dorsal aspect of the trunk, tail head, and limbs, with a rough coat (Figure 1). There were also crusts and pustules along the

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in Journal of the American Veterinary Medical Association
History

An 18-year-old 17.96-kg (39.51-lb) female Vietnamese potbellied pig was evaluated because of a 1-month history of anorexia, diarrhea, and signs of depression.

Clinical and Gross Findings

On physical examination, the pig was tachypneic and had signs of depression. Abdominal palpation revealed an intra-abdominal mass. Results of hematologic evaluation (CBC) and serum biochemical analysis were within reference limits. A 12-cm-diameter, well-demarcated mass in the caudal aspect of the abdominal cavity was detected via abdominal radiography and ultrasonography. The mass contained multiple cystic areas and displaced the intestines cranially, but its precise location could not be determined.

Surgical exploration was elected;

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in Journal of the American Veterinary Medical Association