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Iowa State University Veterinarian

Collection

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

Call Number

SF601 V65

Document Type

Article

Abstract

Actinomycosis is a disease entity popularly called "lump jaw", "lumpy jaw" and "big head." It has been reported in the bovine, equine, porcine, ovine, caprine, canine and feline and generally affects one or more of the following structures: maxilla, mandible, submaxillary lymph nodes, skin (behind the angle of the jaw), tongue and udder.l The ox is the animal most often affected commonly in the area around the angle of the jaw, hence the lay term "lump jaw." In horses, actinomycosis is quite often seen in the submaxillary lymph nodes and in the spermatic cord as a sequel to post-castration infection, usually resulting in a typical scirrhous cord.

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