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Full-Text Articles in Medicine and Health Sciences
Multicentric Malignant Lymphoma In A Pallid Bat, Claire B. Andreasen, Julie R. Dulmstra
Multicentric Malignant Lymphoma In A Pallid Bat, Claire B. Andreasen, Julie R. Dulmstra
Claire B. Andreasen
A 2.5-year-old, female pallid bat (Antrozous pallidus) was captured in Oregon (USA) in 1990 and later died in 1992. At the time of death, abdominal distension due to ascites, splenomegaly, and hepatomegaly, and a cheek mass were noted. Based on histologic examination of these tissues, a diagnosis of multicentric lymphoma was made. Retroviral particles were not found on electron microscopic examination.
Serum Chemistry Of Bowhead Whales (Balaena Mysticetus), Jerry R. Heidel, L. Michael Philo, Thomas F. Albert, Claire B. Andreasen, Bernadette V. Stang
Serum Chemistry Of Bowhead Whales (Balaena Mysticetus), Jerry R. Heidel, L. Michael Philo, Thomas F. Albert, Claire B. Andreasen, Bernadette V. Stang
Claire B. Andreasen
Sera of 19 male and female bowhead whales (Balaena mysticetus) collected near Barrow, Alaska (USA) between 30 August and 13 October 1992 were evaluated for 18 serum chemistry values. Male bowhead whales had significantly greater creatinine and sodium concentrations, and significantly lower glucose concentrations than females. Pregnant females had greater triglyceride levels than non-pregnant females. The mean concentrations of creatinine, blood urea nitrogen, alkaline phosphatase, total bilirubin, total protein, sodium, potassium, chloride, phosphorus, and calcium were similar to those previously reported from bowhead whales. High aspartate aminotransferase and creatine kinase levels were attributed to muscle damage associated with harpooning.
Thoracoabdominal Myelolipomas And Carcinoma In A Lovebird (Agapomis Sp.), James R. Andreasen Jr., Claire B. Andreasen, Kenneth S. Latimer, Jeri L.H. Oliphant
Thoracoabdominal Myelolipomas And Carcinoma In A Lovebird (Agapomis Sp.), James R. Andreasen Jr., Claire B. Andreasen, Kenneth S. Latimer, Jeri L.H. Oliphant
Claire B. Andreasen
Myelolipomas are uncommon benign tumors composed of mature fat cells and hematopoietic cells (myeloid, erythroid, and lymphoid) in various proportions.1,4 In humans, these neoplasms rarely cause symptoms unless they are unusually large or unless they hemorrhage. Myelolipomas have been found incidentally at postmortem examination; however, their antemortem diagnosis is becoming more common in humans with increased use of ultrasound and computed tomography. In contrast, myelolipomas are reported infrequently in animals. Carcinomas (malignant tumors of epithelial origin) are found in many species of animals. In this report, we describe 2 intraabdominal myelolipomas and a cranial thoracic carcinoma of undetermined origin in …
Heterophil Chemotaxis In Chickens With Natural Staphylococcal Infections, James R. Andreasen Jr., Claire B. Andreasen, Mohammad Anwer, Anita E. Sonn
Heterophil Chemotaxis In Chickens With Natural Staphylococcal Infections, James R. Andreasen Jr., Claire B. Andreasen, Mohammad Anwer, Anita E. Sonn
Claire B. Andreasen
Heterophil chemotaxis using heterophils isolated from the peripheral blood of five commercial broiler chickens naturally infected with staphylococcal bacteria was compared by the modified Boyden-chamber technique with chemotaxis of heterophils from two chickens from the same flock not infected with Staphylococcus (field controls) and from four healthy laboratory control broiler chickens. The infected chickens had gross and histologic lesions of staphylococcal tenosynovitis and osteomyelitis. Staphylococci were isolated from the lesions. Hematologic parameters and histologic lesions of infected chickens also were examined. Compared with field and laboratory controls, Staphylococcus-infected chickens had heterophilic leukocytosis. The heterophils of Staphylococcus-infected chickens had significantly lower …
Chicken Heterophil Chemotaxis Using Staphylococcus-Generated Chemoattractants, James R. Andreasen Jr., Claire B. Andreasen, Mohammad Anwer, Anita E. Sonn
Chicken Heterophil Chemotaxis Using Staphylococcus-Generated Chemoattractants, James R. Andreasen Jr., Claire B. Andreasen, Mohammad Anwer, Anita E. Sonn
Claire B. Andreasen
Heterophil chemotaxis, in response to chemotactic factors generated by three different strains of staphylococcal bacteria, was measured using the modified Boyden-chamber technique. Heterophils were obtained from healthy 6-to-8-week-old broiler chickens. Each bacterial strain generated factors that were chemotactic for chicken heterophils. Factors generated by two pathogenic isolates of Staphylococcus aureus, however, induced significantly greater chemotaxis in chicken heterophils than those generated by a nonpathogenic Staphylococcus isolate.
Intestinal Adenocarcinoma Of The Ileocecal Junction In A Chicken, James R. Andreasen Jr., Claire B. Andreasen
Intestinal Adenocarcinoma Of The Ileocecal Junction In A Chicken, James R. Andreasen Jr., Claire B. Andreasen
Claire B. Andreasen
An 89-week-old male chicken was presented with signs of depression, emaciation, and weakness. At necropsy, a stricture was found at the ileocecal junction that resulted in blockage and dilation of the ileum proximal to the stricture. Histologically, neoplastic epithelial cells that contained mucin had invaded the intestinal wall and produced a fibrous connective tissue reaction. The lesion was diagnosed as scirrhous intestinal adenocarcinoma.