title: What is your diagnosis? Fungal rhinosinusitis, with almost complete destruction of the premaxilla and deformation of the upper beak.
authors: Veterinary Teaching Hospital, Ontario Veterinary College, University of Guelph, Canada.
authors: Christoph
authors: C
authors: Mans
authors: David Sanchez-Migallon
authors: DS
authors: Guzman
mesh_terms: D000818:Animals; D001228:Aspergillosis / Q000175:diagnosis / Q000662:veterinary*; D001230:Aspergillus / Q000302:isolation & purification; D001502:Beak / Q000382:microbiology*; D001715:Bird Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000382:microbiology / Q000473:pathology; D003937:Diagnosis, Differential; D015523:Maxillary Sinusitis / Q000175:diagnosis / Q000662:veterinary*; D010311:Parrots; D011859:Radiography; D012220:Rhinitis / Q000175:diagnosis / Q000662:veterinary*