Mandal, A KHemal, A KVaidyanathan, S1990-01-012009-06-021990-01-012009-06-021990-01-01Mandal AK, Hemal AK, Vaidyanathan S. Boari flap calycovesicostomy: a salvage procedure for giant hydronephrosis due to ureteropelvic junction obstruction. Journal of Postgraduate Medicine. 1990 Jan; 36(1): 38-40http://imsear.searo.who.int/handle/123456789/115170The surgical management of two patients with giant hydronephrosis in a solitary kidney treated by Boari flap calycovesicostomy is presented. In one patient, this operation was done following unsuccessful previous pyeloplasty, while in the other this was done as the primary operation. Though free reflux was observed in both the cases, the refluxed contrast emptied satisfactorily after double voiding. No deterioration of renal function was noted during the follow-up period of 12 months.engAdolescentAdultFemaleHumansHydronephrosis --etiologyKidney Calices --surgeryMethodsUreteral Obstruction --complicationsUrinary Bladder --surgeryCase Reports