5-Fluorouracil (5-FU) Toxicosis 1 Abortion, Spontaneous (Early Pregnancy Loss)--Cats 2 Abortion, Spontaneous (Early Pregnancy Loss)--Dogs 4 Abortion, Termination of Pregnancy 6 Abscessation 8 Acetaminophen (APAP) Toxicosis 10 Acidosis, Metabolic 12 Acne--Cats 14 Acne--Dogs 15 Acral Lick Dermatitis 16 Actinomycosis and Nocardia 17 Acute Abdomen 18 Acute Diarrhea 21 Acute Kidney Injury 23 Acute Respiratory Distress Syndrome 25 Acute Vomiting 27 Adenocarcinoma, Anal Sac 29 Adenocarcinoma, Lung 31 Adenocarcinoma, Nasal 32 Adenocarcinoma, Pancreas 34 Adenocarcinoma, Prostate 35 Adenocarcinoma, Renal 36 Adenocarcinoma, Salivary Gland 37 Adenocarcinoma, Skin (Sweat Gland, Sebaceous) 38 Adenocarcinoma, Stomach, Small and Large Intestine, Rectal 39 Adenocarcinoma, Thyroid--Dogs 40 Aggression--Between Dogs in the Household 42 Aggression to Unfamiliar People and Unfamiliar Dogs--Dogs 44 Aggression Toward Children--Dogs 46 Aggression Toward Familiar People--Dogs 47 Aggression Toward Humans--Cats 49 Aggression, Food and Resource Guarding--Dogs 51 Aggression, Intercat Aggression 53 Aggression, Overview--Cats 56 Aggression, Overview--Dogs 58 Alkaline Hyperphosphatasemia in Dogs 61 Alkalosis, Metabolic 63 Alopecia--Cats 65 Alopecia--Dogs 67 Alopecia, Noninflammatory--Dogs 69 Ameloblastoma 71 Amphetamine and ADD/ADHD Medication Toxicosis 72 Amyloidosis 74 Anaerobic Infections 76 Anal Sac Disorders 77 Anaphylaxis 78 Anemia of Chronic Kidney Disease 80 Anemia, Aplastic 82 Anemia, Heinz Body 83 Anemia, Immune-Mediated 84 Anemia, Iron-Deficiency 86 Anemia, Nonregenerative 87 Anemia, Nuclear Maturation Defects (Anemia, Megaloblastic) 89 Anemia, Regenerative 90 Anisocoria 92 Anorexia 94 Antebrachial Growth Deformities 96 Anterior Uveitis--Cats 98 Anterior Uveitis--Dogs 100 Antidepressant Toxicosis--SSRIs and SNRIs 102 Antidepressant Toxicosis--Tricyclic 104 Aortic Stenosis 106 Aortic Thromboembolism 108 Apudoma 111 Arteriovenous Fistula and Arteriovenous Malformation 112 Arteriovenous Malformation of the Liver 113 Arthritis (Osteoarthritis) 115 Arthritis, Septic 118 Ascites 120 Aspergillosis, Disseminated Invasive 122 Aspergillosis, Nasal 124 Aspirin Toxicosis 126 Asthma, Bronchitis--Cats 127 Astrocytoma 129 Ataxia 130 Atlantoaxial Instability 132 Atopic Dermatitis 134 Atrial Fibrillation and Atrial Flutter 136 Atrial Premature Complexes 139 Atrial Septal Defect 141 Atrial Standstill 142 Atrial Wall Tear 144 Atrioventricular Block, Complete (Third Degree) 146 Atrioventricular Block, First Degree 148 Atrioventricular Block, Second Degree--Mobitz Type I 150 Atrioventricular Block, Second Degree--Mobitz Type II 152 Atrioventricular Valve Dysplasia 154 Atrioventricular Valvular Stenosis 156 Azotemia and Uremia 159 Babesiosis 161 Baclofen Toxicosis 163 Bartonellosis 164 Basal Cell Tumor 165 Battery Toxicosis 166 Baylisascariasis 167 Benign Prostatic Hyperplasia 168 Benzodiazepine and Other Sleep Aids Toxicosis 169 Beta Receptor Antagonist (Beta Blockers) Toxicosis 171 Beta-2 Agonist Inhaler Toxicosis 172 Bile Duct Carcinoma 173 Bile Duct Obstruction (Extrahepatic) 174 Bile Peritonitis 177 Bilious Vomiting Syndrome 179 Blastomycosis 180 Blepharitis 182 Blind Quiet Eye 184 Blood Transfusion Reactions 186 BlueGreen Algae Toxicosis 187 Botulism 188 Brachial Plexus Avulsion 189 Brachycephalic Airway Syndrome 190 Brain Injury 192 Brain Tumors 194 Breeding, Timing 196 Bronchiectasis 198 Bronchitis, Chronic 200 Brucellosis 202 Calcipotriene/Calcipotriol Toxicosis 204 Calcium Channel Blocker Toxicosis 205 Campylobacteriosis 206 Candidiasis 207 Canine Coronavirus Infections 208 Canine Degenerative Myelopathy 209 Canine Distemper 211 Canine Infectious Diarrhea 213 Canine Infectious Respiratory Disease 215 Canine Parvovirus 217 Canine Schistosomiasis (Heterobilharziasis) 219 Car Ride Anxiety--Dogs and Cats 220 Carbon Monoxide Toxicosis 223 Carcinoid and Carcinoid Syndrome 224 Cardiac Glycoside Plant Toxicosis 225 Cardiomyopathy, Arrhythmogenic Right Ventricular--Cats 226 Cardiomyopathy, Arrhythmogenic Right Ventricular--Dogs 227 Cardiomyopathy, Dilated--Cats 229 Cardiomyopathy, Dilated--Dogs 232 Cardiomyopathy, Hypertrophic--Cats 235 Cardiomyopathy, Hypertrophic--Dogs 238 Cardiomyopathy, Nutritional 239 Cardiomyopathy, Restrictive--Cats 241 Cardiopulmonary Arrest 243 Cataracts 245 Cerebellar Degeneration 247 Cerebellar Hypoplasia 248 Cerebrovascular Accidents 249 Ceruminous Gland Adenocarcinoma, Ear 251 Cervical Spondylomyelopathy (Wobbler Syndrome) 252 Chagas Disease (American Trypanosomiasis) 254 Chediak-Higashi Syndrome 255 Chemodectoma 256 Cheyletiellosis 257 Chlamydiosis--Cats 258 Chocolate Toxicosis 260 Cholangitis/Cholangiohepatitis Syndrome 262 Cholecystitis and Choledochitis 265 Cholelithiasis 267 Chondrosarcoma, Bone 269 Chondrosarcoma, Nasal and Paranasal Sinus 270 Chondrosarcoma, Oral 271 Chorioretinitis 272 Chronic Kidney Disease 274 Chylothorax 277 Cirrhosis and Fibrosis of the Liver 279 Claw and Clawfold Disorders 282 Clostridial Enterotoxicosis 284 Coagulation Factor Deficiency 286 Coagulopathy of Liver Disease 288 Cobalamin Deficiency 290 Coccidioidomycosis 292 Coccidiosis 294 Cognitive Dysfunction Syndrome 295 Cold Agglutinin Disease 297 Colibacillosis 298 Colitis and Proctitis 300 Colitis, Histiocytic Ulcerative 303 Compulsive Disorders--Cats 304 Compulsive Disorders--Dogs 306 Congenital and Developmental Renal Diseases 308 Congenital Ocular Anomalies 310 Congenital Spinal and Vertebral Malformations 313 Congestive Heart Failure, Left-Sided 315 Congestive Heart Failure, Right-Sided 317 Conjunctivitis--Cats 319 Conjunctivitis--Dogs 321 Constipation and Obstipation 323 Contact Dermatitis 325 Coonhound Paralysis (Acute Polyradiculoneuritis) 326 Copper Associated Hepatopathy 328 Coprophagia and Pica 332 Corneal and Scleral Lacerations 334 Corneal Opacities--Degenerations and Infiltrates 336 Corneal Opacities--Dystrophies 337 Corneal Sequestrum--Cats 338 Cough 339 Craniomandibular Osteopathy 341 Cruciate Ligament Disease, Cranial 342 Cryptococcosis 344 Cryptorchidism 346 Cryptosporidiosis 347 Crystalluria 348 Cutaneous Drug Eruptions 350 Cuterebriasis 351 Cyanosis 352 Cyclic Hematopoiesis 354 Cylindruria 355 Cytauxzoonosis 356 Deafness 357 Deciduous Teeth, Persistent (Retained) 359 Deep Cutaneous Mycoses 360 Demodicosis 362 Dental Caries 364 Dentigerous Cyst 366 Dermatomyositis 367 Dermatophilosis 369 Dermatophytosis 370 Dermatoses, Depigmenting Disorders 372 Dermatoses, Erosive or Ulcerative 374 Dermatoses, Exfoliative 376 Dermatoses, Neoplastic 378 Dermatoses, Papulonodular 380 Dermatoses, Sterile Nodular/Granulomatous 382 Dermatoses, Sun-Induced 384 Dermatoses, Vesiculopustular 385 Dermatoses, Viral (Non-Papillomatosis) 387 Destructive and Scratching Behavior--Cats 388 Destructive Behavior--Dogs 389 Diabetes Insipidus 391 Diabetes Mellitus With Hyperosmolar Hyperglycemic State 393 Diabetes Mellitus With Ketoacidosis 395 Diabetes Mellitus Without Complication--Cats 397 Diabetes Mellitus Without Complication--Dogs 399 Diaphragmatic Hernia 401 Diarrhea, Antibiotic Responsive 402 Diarrhea, Chronic--Cats 403 Diarrhea, Chronic--Dogs 405 Digoxin Toxicity 407 Diisocyanate Glues 408 Discolored Tooth/Teeth 409 Discospondylitis 411 Disseminated Intravascular Coagulation 413 Drowning (Near Drowning) 415 Ductal Plate Malformation (Congenital Hepatic Fibrosis) 416 Dysautonomia (Key-Gaskell Syndrome) 419 Dyschezia and Hematochezia 420 Dysphagia 422 Dyspnea and Respiratory Distress 425 Dystocia 428 Dysuria, Pollakiuria, and Stranguria 430 Ear Mites 432 Eclampsia 433 Ectopic Ureter 434 Ectropion 435 Ehrlichiosis and Anaplasmosis 436 Elbow Dysplasia 438 Electric Cord Injury 440 Enamel Hypoplasia/Hypocalcification 441 Encephalitis 442 Encephalitis Secondary to Parasitic Migration 444 Endocarditis, Infective 445 Endomyocardial Diseases--Cats 447 Entropion 449 Eosinophilia 450 Eosinophilic Granuloma Complex 451 Epididymitis/Orchitis 453 Epilepsy, Genetic (Idiopathic)--Dogs 454 Epiphora 456 Episcleritis 458 Epistaxis 459 Erythrocytosis 462 Esophageal Diverticula 464 Esophageal Foreign Bodi.