Pancreatitis in a cat demonstrating pancreatic duct dilatation ultrasonographically.

A 17-year-old, castrated male domestic shorthair cat presented with nonspecific clinical findings of three days' duration. Complete blood counts and serum biochemistry profiles revealed evidence of hepatic dysfunction. Ultrasonographic evaluation revealed abnormalities consistent with pancreatitis, with suspected pancreatic duct dilatation in the left limb of the pancreas.

Bald thigh syndrome of Greyhound dogs: gross and microscopic findings.

Bald thigh syndrome (BTS) is a disease limited to Greyhound dogs. It is characterized clinically and grossly by bilateral hair loss on the lateral and caudal thighs. The cause of BTS is unknown but may be associated with hypothyroidism or hyperadrenocorticism.

Skeletal muscle lymphoma in a bullmastiff.

A 16-month-old, neutered male bullmastiff was presented for acute onset of massive swelling of the right hind limb. Primary skeletal muscle lymphoma was diagnosed based on cytopathology, surgical biopsy, and necropsy findings. Cutaneous metastases developed during the hospitalization, and additional metastases were found in the heart and thoracic wall.

Silicate and metal dust in lungs of Greyhounds.

Objectives: To determine whether the amount of opaque dust in lung specimens increases with age, the composition of that dust, and whether the composition is similar for Greyhounds and pet dogs.

Design: Quantification of lung particulate dust burdens.

Animals: 192 Greyhounds and 5 pet dogs.

Glomerular ultrastructural lesions of idiopathic cutaneous and renal glomerular vasculopathy of greyhounds.

Idiopathic cutaneous and renal glomerular vasculopathy (CRGV) (Alabama rot) is a potentially fatal disease of unknown etiology that affects the skin and kidneys of racing- and training-age Greyhounds. Ultrastructural examinations were performed on two healthy control Greyhounds and 12 Greyhounds diagnosed with CRGV based on the presence of characteristic, well-demarcated cutaneous ulcers of the extremities (12/12), thrombocytopenia (< 200,000 platelets/dl) (12/12), and acute renal insufficiency (BUN > 40 mg/dl, serum creatinine > 2.0 mg/dl) (7/12).

Endocardiosis and other heart disease in greyhounds.

Gross and microscopic lesions of heart disease in 230 greyhounds were recorded. The most common lesion was endcardiosis, which occurred in 24 (10.4%) of the greyhounds.

Body weight, heart weight, and heart-to-body weight ratio in greyhounds.

Heart and body weights were obtained from 230 Greyhounds during necropsy. Sex and age were recorded for each Greyhound. Twenty-nine racing and 21 nonracing Greyhounds among the 230 dogs were compared.

Prognosis of canine mast cell tumors: a comparison of three methods.

In this study, age, sex, recurrence, metastasis, death rate, and histologic patterns were in agreement with those of previous reports on canine mast cell tumors. Histologic grading, mitotic index, chromosome nucleolar organizer regions stained with silver (AgNORs), and anti-proliferating cell nuclear antigen (PCNA) were evaluated as indicators of prognosis. Histologic grading, AgNORs estimated in 100 cells, and PCNA-labeled fraction estimated in five high power fields (HPFs) were significantly different between recurring and nonrecurring tumors.

Canine mast cell tumors: a comparison of staining techniques.

Twelve histochemical methods; affinity staining with avidin peroxidase, wheat germ agglutinin, and concavalin-A agglutinin; and an immunohistochemical stain with Kp1 (CD68) antibody were compared for their relative effectiveness in staining canine mast cell tumors. Stains were compared in 28 mast cell tumors and 19 histiocytomas. The effectiveness of the histochemical methods and the lectins decreased as the mast cells became less differentiated.

Gross and microscopic lesions of 230 Kansas greyhounds.

Two hundred thirty greyhounds from Kansas were submitted to Kansas State University for necropsy to identify and document their diseases. Sex distribution was 124 females (1 spayed) and 106 males (1 castrated). Age range was 5 days-150 months.

Identification of a nasal nematode (Eucoleus boehmi) in greyhounds.

Eggs of Eucoleus boehmi were recovered from the faeces of greyhounds from three breeding farms and four racetrack kennels and from those of four greyhounds submitted for necropsy. Diagnosis was dependent on differentiation of the eggs of E. boehmi, E.

Canine distemper with spinal cord lesions.

A case of distemper in a 6-month-old dog is described. The dog was presented with a history of tetraparesis suggestive of trauma. Neurological examination and clinical pathology findings of lymphopenia and pleocytosis suggested a viral cause.

Metastatic granulosa cell tumor in a mare.

A 5-year-old Quarter Horse mare was referred for evaluation of an acute non-weightbearing lameness of the left hind limb in which musculoskeletal abnormalities had not been detected. After admission, the mare had signs of colic. Exploratory laparotomy revealed the left ovary to be large, masses in the left sublumbar space, and diffuse infiltration of the mesentery, omentum, liver, and spleen with variably-sized masses.

Frozen cadaver. Antemortem versus postmortem.

Three categories of skin from Hanford miniature swine were examined microscopically: normal, unfrozen skin; skin exposed to -75 degrees C air for 5 min, 6 h postinjury; and skin frozen postmortem. Frostbitten skin (antemortem freezing) was characterized grossly by a purple discoloration and microscopically by dilated, blood-filled, superficial capillaries. Other changes in the frostbitten skin were vacuolated epithelial cells and dermal edema.

Experimental frost-bite in Hanford Miniature Swine. III. Sweat gland changes.

Frost-bite was produced in five Hanford Miniature Swine by exposure to -75 degrees C air for 1, 3, 5, 10 or 20 min. Biopsies were taken at 0, 3, 6, 12, 24 and 48 h and 1, 2 and 15 weeks. Sweat glands were evaluated microscopically and graded: 0, no change to 5, severe change.

Experimental frostbite: freezing times, rewarming times, and lowest temperatures of pig skin exposed to chilled air.

Frostbite was produced in the skin of five Hanford Miniature Swine by exposing local areas to chilled air (-75 degrees C) for 1, 3, 5, 10, or 20 min. A copper-constantan thermocouple was inserted into the dermis to measure the temperature. The mean freezing time (the time required to reach 0 degrees C) was approximately 1.

Experimental frost-bite in Hanford Miniature Swine. II. Vascular changes.

Frost-bite lesions were produced in five Hanford Miniature Swine exposed to - 75 degrees C air for 1, 3, 5, 10, or 20 min. Biopsies were taken at 0, 3, 6, 12, 24, and 48 h, and 1 and 2 weeks. Two hundred slides were evaluated microscopically: superficial and deep hyperaemia, vascular inflammation, medial degeneration, and thrombosis were graded from 0 to 5; 0, no change; 5, severe change.

Experimental frost-bite in Hanford Miniature Swine. I. Epithelial changes.

Frost-bite lesions were produced in five Hanford Miniature Swine exposed to - 75 degrees C air for 1, 3, 5, 10 or 20 min. Biopsies were taken at 0, 3, 6, 12, 24 and 48 h and 1 and 2 weeks. Two hundred slides were evaluated microscopically: pyknosis, vacuolation, individualization of cells, and degeneration were graded from 0-5; 0, no change; 5, severe change.

Microscopic diagnosis from frozen canine tissues.

Frozen tissues were studied microscopically to determine their value for diagnostic purposes. Sections were taken from lung, liver, kidney, small intestine, and brain of ten diseased dogs that died or were euthanatized. Some tissues were frozen, held for two or seven days, and then formalin-fixed.

Effects of freezing and frozen storage on histological characteristics of canine tissues.

Frozen tissues were studied histologically to determine what changes were produced by freezing. Samples of brain, lung, liver, small intestine, and kidney from 20 stray dogs were treated in 3 ways: formalin fixation (control), frozen for 2 days plus formalin fixation, or frozen for 7 days plus formalin fixation. Major histological changes caused by freezing were loss of staining, extracellular fluid accumulation, cell shrinkage, fractures, hemolysis, and hematin formation.

Age-related changes in the cat testis and epididymis.

Forty-two pairs of testes and epididymides were obtained from clinically healthy cats and were examined histologically for age-related changes. All of the following testicular features increased with age: thickness of the testicular tunica adventitia, the amount of lipofuscin in the interstitial cell, hyperplasia of interstitial cells, vacuolation of Sertoli cell cytoplasm, degeneration of seminiferous tubules and thickness of the seminiferous tubular basement membrane. Two spermatoceles were found in the oldest cat.

Determining time of death of a dog by analyzing blood, cerebrospinal fluid, and vitreous humor collected at postmortem.

Blood, cerebrospinal fluid, and vitreous humor collected at antemortem and postmortem from 60 dogs were analyzed to determine what chemical value may be used for estimating time of death. Euthanatized dogs were maintained at 4 C, 20 C, or 37 C for 3, 6, 12, 24, or 48 hours. At postmortem, vitreous humor potassium values increased with increased time and increased temperature.

Postmortem biochemical changes in canine blood.

Antemortem and postmortem blood samples from 60 dogs were evaluated for sodium, chloride, potassium, urea nitrogen, glucose, creatinine, calcium, phosphorus, total protein, albumin, and carbon dioxide levels. Temperatures were 4, 20 and 37 degrees C. Postmortem intervals were 3, 6, 12, and 48 h.