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
Rannula of the canine is a condition involving the retention of the flow of saliva from the submaxillary gland. Synonymous terms are retention cyst and submaxillary cyst but the condition is erroneously called sublingual cyst, a separate disease. Etiology includes calculi, foreign bodies, trauma, stenosis, and congenital anomalies.
"Rannula of the Canine,"
Iowa State University Veterinarian: Vol. 18
, Article 8.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol18/iss3/8