1. Heal MR. Ureteral varicosities--a cause of the corkscrew ureter. Br J Surg. 1970; 57:274–276.
2. Weiner SN, Bernstein RG, Morehouse H, Golden RA. Hematuria secondary to left peripelvic and gonadal vein varices. Urology. 1983; 22:81–84.
3. Wendel RG, Crawford ED, Hehman KN. The "nutcracker" phenomenon: an unusual cause for renal varicosities with hematuria. J Urol. 1980; 123:761–763.
4. Kim HS, Park JW, Won IS, Shin KC, Kim S, Yang J, et al. A case of periureteral varices with nutcracker syndrome diagnosed by intravenous pyelography. Korean J Nephrol. 2009; 28:142–145.
5. Trambert JJ, Rabin AM, Weiss KL, Tein AB. Pericaliceal varices due to the nutcracker phenomenon. AJR Am J Roentgenol. 1990; 154:305–306.
6. Ali Khan S, Jayachandran S, Desai PG, Bonheim P. Renal colic, a presenting symptom of pelviureteric varices. Int Urol Nephrol. 1985; 17:11–14.
7. Martelli A, Vitullo F. Microscopic hematuria due to peri-ureteral varices. Urol Int. 1970; 25:457–465.
8. Johnson PT, Halpern EJ, Kuszyk BS, Heath DG, Wechsler RJ, Nazarian LN, et al. Renal artery stenosis: CT angiography--comparison of real-time volume-rendering and maximum intensity projection algorithms. Radiology. 1999; 211:337–343.
9. Cuéllar i Calàbria H, Quiroga Gómez S, Sebastià Cerqueda C, Boyé de la Presa R, Miranda A, Alvarez-Castells A. Nutcracker or left renal vein compression phenomenon: multidetector computed tomography findings and clinical significance. Eur Radiol. 2005; 15:1745–1751.