Jose Maria Vila, Spanish urologist, 1922–. Gil-Vernet dissectionGil-Vernet operation - extension of a standard pyelotomy into the lower pole infundibulum through the avascular plane between the posterior and basilar segmental renal arteries. Synonym(s): extended pyelotomyGil-Vernet pyelolithotomyGil-Vernet renal sinus retractorGil-Vernet retractor