Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
On May 27, a 7-year-old Holstein bull was brought to the Stange Memorial Clinic. It showed an enlargement on the ldt side in the area of the prefemoral lymph nodes and another below the paralumbar fossa on the same side. According to the owner, these growths had been present for several weeks. The owner also indicated that the animal had been off feed.
Scott, Lyle Jr.
"Lymphocytoma in a Holstein Bull,"
Iowa State University Veterinarian: Vol. 7
, Article 10.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol7/iss1/10