title: Ocular complications of persistent hyperplastic primary vitreous in three dogs.
abstract: Persistent hyperplastic primary vitreous (PHPV) syndrome associated with either severe ocular complications or multiple ocular lesions was diagnosed in three young dogs, a Samoyed, a Spanish Pachon, and a mixed breed dog. Due to opacification of the anterior ocular structures, B-mode and color-flow Doppler ultrasonography were performed to aid diagnosis. The Samoyed presented with unilateral hyphema; the Spanish Pachon presented with unilateral secondary glaucoma associated with uveitis and hyphema OD and leucocoria OU; and the mixed breed presented with bilateral leucocoria. B-mode ultrasonography of the Samoyed revealed a subcapsular cataract and a hyperechoic tubular structure attached from the optic disk to the posterior lens capsule. In the Spanish Pachon B-mode ultrasonography of the right eye indicated microphakia, cataract formation, and a retrolental mass with a thin hyperechoic strand stretching from the optic disk to the posterior lens; and for the right eye cataract formation, PHPV, retinal detachment, and vitreous hemorrhage. In the mixed breed dog, B-mode ultrasonography of both eyes indicated microphthalmia, retrolental mass, and hyperechoic lenses. By color-flow Doppler imaging, blood flow was present in the retrolental mass of the right eye suggesting a persistent hyaloid artery.
authors.affiliation: Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Murcia, Campus Universitario, 30100, Espinardo, Murcia, Spain. abayon@um.es
authors.forename: A
authors.initials: A
authors.lastname: Bayón
authors.forename: M C
authors.initials: MC
authors.lastname: Tovar
authors.forename: M J
authors.initials: MJ
authors.lastname: Fernández del Palacio
authors.forename: A
authors.initials: A
authors.lastname: Agut
mesh_terms: D000818:Animals; D003937:Diagnosis, Differential; D004283:Dog Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004285:Dogs; D005128:Eye Diseases / Q000151:congenital / Q000175:diagnosis / Q000662:veterinary*; D005260:Female; D006965:Hyperplasia / Q000662:veterinary; D007908:Lens, Crystalline / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D013577:Syndrome; D018608:Ultrasonography, Doppler / Q000662:veterinary; D014822:Vitreous Body / Q000002:abnormalities