Primary fibroma in the right atrium of a dog.
D000818:Animals; D004283:Dog Diseases / Q000473:pathology*; D004285:Dogs; D005350:Fibroma / Q000150:complications / Q000473:pathology / Q000662:veterinary*; D006325:Heart Atria / Q000473:pathology; D006333:Heart Failure / Q000209:etiology / Q000473:pathology / Q000662:veterinary*; D006338:Heart Neoplasms / Q000150:complications / Q000473:pathology / Q000662:veterinary*; D008297:Male