PBS Emeritus Office:

• Professor of Clinical Pathology
• DVM 1969, Cornell University
• PhD 1978, Western College of Veterinary Medicine at the University of Saskatchewan
• Diplomate, American College of Veterinary Pathologists

Cytologic diagnosis of disease in domestic animals; application of laboratory tests to production enhancement; bone marrow responses to systemic diseases in cattle.

Clinical pathology; Senior rotation in ambulatory service; Regulatory veterinary medicine.

"Splenic Parenchyma" in Diagnostic Cytology of the Dog and Cat . American Veterinary Publications, Goleta , CA, pp. 199-206, 1989.

Kiorpes, A., MacWilliams, P., Schenkman, D., Backstrom, L. Blood gas and hematologic changes in experimental peracute porcine pleuropneumonia. Can J Vet Res 54:164-169, 1990.

Lunn, D.P., McGuirk, S., Smith, D., MacWilliams, P. Renal net acid and electrolyte excretion in an experimental model of hypochloremic metabolic alkalosis in sheep. AJVR 51:1723-1731, 1990.

MacWilliams P., Easterday, B., McGuirk, S. The Wisconsin senior rotation in ambulatory service: a new approach to on-farm instruction in large animal medicine, surgery, and herd health. J Vet Med Educ 19:15-18, 1992.

"Cerebrospinal fluid" in Cytology and Hematology of the Horse . American Veterinary Publications, Goleta , CA, pp. 163-171, 1992.

MacWilliams, P., Thomas C. Basic laboratory medicine. Semin Vet Med and Surg 7:253-261, 1992.

Meadows, R., MacWilliams, P., Dzata, G., DeLauche, A. Diagnosis of histoplasmosis in a dog by cytologic examination of CSF. Vet Clin Path 21:122-124, 1992.

Meadows, R., MacWilliams, P., Dzata, G., Meinen, J. Chylothorax associated with cryptococcal mediastinal granuloma in a cat. Vet Clin Path 22:109-116, 1993.

Meadows, R. and MacWilliams, P. Chylous effusions revisited. Vet Clin Path 23:54-62, 1994.

Converse, L., Fernandes, P., MacWilliams, P., Bossart, G. Hematology, serum chemistry, and morphometric reference values for Antillean manatees. J Zoo Wild Med 25:423-431, 1994.

Ramer, J., MacWilliams, P. and Paul-Murphy, J. Effects of hemolysis and frozen storage on serum electrolyte and chemistry values in cotton-top tamarins (Saguinus oedipus). J. Zoo. Wild. Med. 26:61-66, 1995.

Helfand, S., Modiano, J., Soergel, S., Moore, P., MacWilliams, P., Dubielzig, R., Hank, J., Gelfand, E., Sondel, P. Functional interleuken-2 receptors are expressed on natural killer-like leukemic cells from a dog with cutaneous lymphoma. Blood 86:636-645, 1995.