González Alonso-Alegre, Elisa-MargaritaRodríguez Álvaro, AlfonsoEsteban Martin, Javier2024-02-012024-02-012015-11-12Gonzalez-Alonso-Alegre, E. M., Rodriguez-Alvaro, A., & Esteban-Martín, J. (2016). Atypical chorioretinal coloboma in a Golden Retriever: a retinographic, fluoroangiographic, and optical coherence tomography study. Veterinary ophthalmology, 19(6), 525–530. https://doi.org/10.1111/vop.123281463-522410.1111/vop.12328https://hdl.handle.net/20.500.14352/97556Purpose: To report a case of canine atypical chorioretinal coloboma where ophthalmoscopic, fluoroangiographic and optical coherence tomography characteristics are described. Animal Studied: A 2-year-old Golden Retriever dog in which routine ophthalmoscopic examination allowed diagnosis of a posterior coloboma on the left eye. Procedures: Retinography, fluorescein angiography, and optical coherence tomography were performed to characterize the lesion of the left fundus. Results: Ophthalmoscopy revealed a pigmented circumscribed lesion dorsal to the optic nerve of the left fundus, surrounded by small areas of hyper-reflectivity and retinal vessels with an abnormal pattern. Fluoroangiography revealed a constant hypofluorescence of the defect and a complete altered vascular pattern associated with the coloboma. Optical coherence study demonstrated an important craterlike depression showing an atrophic neurosensory retina, and a lack of retinal pigment epithelium and choroidal tissue. Conclusions: Fluoroangiographic and optical coherence tomographic studies of an atypical chorioretinal coloboma in a dog are reported for the first time. Both imaging techniques are of great importance to characterize this type of congenital defects.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/journal articlehttps://onlinelibrary.wiley.com/doi/10.1111/vop.1232826559650open access636.09:617.7dogatypical colobomafluorescein angiographyoptical coherence tomographyretinachoroidVeterinaria3201.09 Oftalmología