title: Ultrastructural changes in histiocytic ulcerative colitis in a Boxer.
mesh_terms: D000818:Animals; D003093:Colitis, Ulcerative / Q000473:pathology / Q000662:veterinary*; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D006644:Histiocytes; D008854:Microscopy, Electron; D013194:Staining and Labeling