Fluorescein angiography in homozygote and carrier state of progressive retinal atrophy of the poodle; comparative aspects with human retinitis pigmentosa.
Fluorescein angiographic findings in 7 carriers and 7 homozygotes of a recessively inherited disease, generalized progressive retinal atrophy of the poodle, are described in detail and comparisons with 24 healthy control poodles are presented. Two angiographic types of the disease could be distinguished. These are: Type 1, a diffuse, widespread choriocapillaris atrophy associated with retinal vascular and depigmentation changes and Type 2, a predominantly retinal involvement combined with focal choroidal atrophic patches lineating major vessels. These findings share similarities with the observations made of the human disease, retinitis pigmentosa. Unaffected carriers of the disease showed characteristic fundus changes in angiography: patchy, hyperfluorescent depigmentation changes and often minor narrowing and irregularities of the arterioles and poorly visible capillary bed.
D000818:Animals; D001284:Atrophy / Q000662:veterinary; D004283:Dog Diseases / Q000175:diagnosis / Q000235:genetics*; D004285:Dogs; D005260:Female; D005451:Fluorescein Angiography; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D008297:Male; D012160:Retina / Q000473:pathology*; D012162:Retinal Degeneration / Q000175:diagnosis / Q000235:genetics / Q000662:veterinary*; D012174:Retinitis Pigmentosa / Q000235:genetics*; D013045:Species Specificity