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
An eighteen-month-old Shorthorn bull was brought to the Charles Henry Stange Memorial Clinic on April 15, 1941. This animal had a large growth on the right frontal region which hung down over the right eye. Two similar, but smaller growths were also present, one involving the left horn and the other the right side of the neck. The animal was examined, and although no exact diagnosis as to the nature of the growth was made, it was evident that surgery would be necessary if a recovery was to be effected.
Huso, B. T.
"Myxo-fibromae on the Head of a Bull,"
Iowa State University Veterinarian: Vol. 4
, Article 15.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol4/iss1/15