Fistula channel from the ear to the frontal region in 2 guinea-pigs having streptococcal empyema of the middle and inner ear.
D000818:Animals; D001847:Bone Diseases / Q000209:etiology / Q000662:veterinary*; D004427:Ear Diseases / Q000209:etiology / Q000662:veterinary*; D005260:Female; D005402:Fistula / Q000209:etiology / Q000662:veterinary*; D005624:Frontal Bone; D006168:Guinea Pigs; D007762:Labyrinthitis / Q000150:complications / Q000662:veterinary; D010035:Otitis Media, Suppurative / Q000150:complications / Q000662:veterinary; D012376:Rodent Diseases / Q000209:etiology*; D013290:Streptococcal Infections / Q000150:complications / Q000662:veterinary*