ROENTGENOGRAPHIC APPEARANCE OF CANINE HISTIOCYTIC ULCERATIVE COLITIS

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Abstract
Barium enema examinations and histologic specimens were evaluated in a retrospective study of 24 cases of canine ulcerative colitis. Mucosal serrations, ulcerations, and irregular mucosal folds, with shortening and rigidity of the colon were the most frequent roentgenographic changes in these cases. Histologically, the dominant feature was the PAS-positive histiocyte infiltration of the colonic mucosa and submucosa. Variable ulceration was present, ranging from small superficial defects, to completely denuded segments of colon. Canine histiocytic ulcerative colitis shares many roentgenographic features with idiopathic chronic ulcerative colitis of man, despite histologic differences.

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