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 Nov. 11, 1949 a 2-year-old, Standardbred gelding with an enlargement over the frontal and maxillary sinus region was admitted to Stange Memorial Clinic. The accompanying history stated that the animal probably had been kicked on the jaw.
Hacecky, R. M.
"Edema of the Sinus,"
Iowa State University Veterinarian: Vol. 11
, Article 14.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol11/iss2/14