Hyperkeratosis and nodules in udder, cow

Hyperkeratosis and nodules in udder, cow

Photograph of the udder of a cow with besnoitiosis. This cow’s udder shows hyperkeratosis below (dark areas in the lower portion of the udder) and nodules above (arrows in the upper portion). Hyperkeratosis is also evident in the distal aspect of the limbs (upper right arrow).

Courtesy of Dr. Gema Álvarez García.