Integument.- Papillomavirus Infections.- Leprosy.- Dermatophilosis, Skin.- Histoplasma capsulatum var. duboisii Infection, Baboon.- Cutaneous Acariasis.- Digestive System.- Gingivitis, Necrotizing Ulcerative, Macaca mulatta.- Gingival Fibromatosis, Macaca mulatta.- Gastroenteritis Due to Paramyxovirus.- Trichomonas Gastritis.- Cryptosporidiosis, Intestines, Pancreatic Duct, Bile Duct, Gall Bladder, Macaca mulatta.- Shigellosis.- Carcinomas, Gastrointestinal Tract.- Callitrichid Hepatitis.- Cholesterol Gallstones, Owl Monkeys.- Prosthenorchiasis.- Pterygodermatites nycticebi, Tamarins.- Campylobacter jejuni Colitis.- Acute and Chronic Colitis, Cotton-Top Tamarins.- Chronic Colitis, Juvenile Macaca mulatta.- Adenocarcinoma, Colon, Cotton-Top Tamarin.- Focal Ulcerative Ileocolitis, Cotton-Top Tamarin.- Respiratory System.- Nocardiosis, Lung.- Cardiovascular System.- Atherosclerosis, Arteries.- Aortic Dissection.- Musculoskeletal System.- Infantile Cortical Hyperostosis, Rhesus Monkey.- Chondrosarcoma, Squirrel Monkey.- Congenital Retrosternal Diaphragmatic Defects, Golden Lion Tamarins.- Type II Collagen Arthropathy.- Pyrophosphate Arthropathy, Macaca mulatta.- Urinary System.- Glomerulonephritis, Owl Monkeys.- Renal Ectopia, Squirrel Monkey and Owl Monkey.- Genital System.- Ovarian Teratoma, Macaca mulatta.- Granulosa Cell Tumor, Ovary, Stump-Tail Macaque and Granulosa-Theca Cell Tumor, Ovary, Squirrel Monkey.- Endometrial Adenocarcinoma, Squirrel Monkey.- Arrested Spermatogenesis: Aotus trivirgatus, Saimiri sciureus, and Macaca mulatta.- Nervous System.- Pneumococcal Meningitis.- Age-Related Lesions, Nervous System.- Spontaneous Pallidonigral Spheroids and Iron Pigment Accumulation, Macaques.- Cerebral Venous Thrombosis, Macaca mulatta.- Encephalitozoon cuniculi Infection, Squirrel Monkey.- Endocrine System.- The Insular Amyloidotic Lesion and Its Relationship to Diabetes Mellitus, Macaca nigra.- Adenoma, Pars Intermedia, Pituitary, Macaca mulatta.- Hemopoietic System.- Blood Groups of Apes and Monkeys.- Erythroblastosis Fetalis.- Eosinophilic Myelocytoma, Owl Monkey.- Hematogenous Hexamitiasis, Macaca mulatta.- Vitamin E-Responsive Hemolytic Anemia and Necrotizing Myopathy, Owl Monkeys.- Focal Epithelial Hyperplasia, Chimpanzees.- Nochtiasis.