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Fretz PC, Sandlow JI: Varicocele: current concepts in pathophysiology, diagnosis, and treatment. UrolClin North Am 2002; 29: 921–937.10.1016/S0094-0143(02)00075-7Search in Google Scholar
Alsaikhan B, Alrabeeah K, Delouya G, Zini A: Epidemiology of varicocele. Asian J Androl 2016; 18: 179–181.10.4103/1008-682X.172640Search in Google Scholar
Oster J: Varicocele in children and adolescents. An investigation of the incidence among Danish school children.Scand J UrolNephrol 1971; 5: 27–32.10.3109/00365597109133569Search in Google Scholar
Akbay E, Cayan S, Doruk E, Duce MN, Bozlu M: The prevalence of varicocele and varicocele-related testicular atrophy in Turkish children and adolescents. BJU Int 2000; 86: 490–493.10.1046/j.1464-410X.2000.00735.xSearch in Google Scholar
Levinger U, Gornish M, Gat Y, Bachar GN: Is varicocele prevalence increasing with age? Andrologia 2007: 39; 77–80.10.1111/j.1439-0272.2007.00766.xSearch in Google Scholar
Sofikitis N, Miyagawa I: Experimental models for the study of varicocele: a selected review. Jpn J FertilSteril 1992; 38: 168–177.Search in Google Scholar
Braedel HU, Steffens J, Ziegler M, Polsky MS, Platt ML: A possible on-togenic etiology for idiopathic left varicocele. J Urol 1994; 151: 62–66.10.1016/S0022-5347(17)34872-3Search in Google Scholar
Sofikitis N, Dritsas K, Miyagawa I, Koutselinis A: Anatomical characteristics of the left testicular venous system in man. Arch Androl 1993; 30: 79–85.10.3109/01485019308987738Search in Google Scholar
Hart RR, Rushton HG, Belman AB: Intraoperative spermatic venography during varicocele surgery in adolescents. J Urol1992; 148: 1514–1516.10.1016/S0022-5347(17)36953-7Search in Google Scholar
Nagappan P, Keene D, Ferrara F, Shabani A, Cervellione RM: Antegrade venography identifies parallel venous duplications in the majority of adolescents with varicocele. J Urol 2015; 193: 286–290.10.1016/j.juro.2014.07.08125058868Search in Google Scholar
Gulleroglu K, Gulleroglu B, Baskin E: Nutcracker syndrome. World J Nephrol 2014; 3: 277–281.10.5527/wjn.v3.i4.277422036125374822Search in Google Scholar
Zorgniotti AW, Macleod J: Studies in temperature, human semen quality, and varicocele. FertilSteril 1973; 24: 854–863.10.1016/S0015-0282(16)40032-4Search in Google Scholar
Ali JI, Weaver DJ, Weinstein SH, Grimes EM: Scrotal temperature and semen quality in men with and without varicocele. Arch Androl 1990; 24: 215–219.10.3109/01485019008986882Search in Google Scholar
Comhaire F, Vermeulen A: Varicocele sterility: cortisol and catecholamines. FertilSteril 1974; 25: 88–95.10.1016/S0015-0282(16)40159-7Search in Google Scholar
Ito H, Fuse H, Minagawa H, Kawamura K, Murakami M, Shimazaki J: Internal spermatic vein prostaglandins in varicocele patients. FertilSteril 1982; 37: 218–222.10.1016/S0015-0282(16)46043-7Search in Google Scholar
Rajfer J, Turner TT, Rivera F, Howards SS, Sikka SC: Inhibition of testicular testosterone biosynthesis following experimental varicocele in rats. BiolReprod 1987; 36: 933–937.10.1095/biolreprod36.4.933Search in Google Scholar
Sofikitis N, Miyagawa I: Effects of surgical repair of experimental left varicocele on testicular temperature, spermatogenesis, sperm maturation, endocrine function, and fertility in rabbits. Arch Androl 1992; 29: 163–175.10.3109/01485019208987721Search in Google Scholar
Rowe PJ, Comhaire FH, Hargreave TB, Mahmoud AM; World Health Organization: WHO Manual for the Standardized Investigation, Diagnosis, and Management of the Infertile Male. Cambridge – New York 2000.Search in Google Scholar
Agarwal A, Deepinder F, Cocuzza M, AgarwalR, Short RA, Sabanegh E et al.: Efficacy of varicocelectomy in improving semen parameters: new meta-analytical approach. Urology 2007; 70: 532–538.10.1016/j.urology.2007.04.011Search in Google Scholar
Dubin L, Amelar RD: Varicocele size and results of varicocelectomy in selected subfertile men with varicocele. FertilSteril 1970; 21: 606–609.10.1016/S0015-0282(16)37684-1Search in Google Scholar
Jungwirth A, Giwercman A, Tournaye H, Diemer T, Kopa Z, Dohle G et al.: European Association of Urology guidelines on male infertility: the 2012 update. Eur Urol 2012; 62: 324–332.10.1016/j.eururo.2012.04.04822591628Search in Google Scholar
American Urological Association Education and Research: The optimal evaluation of the infertile male: AUA best practice statement. Linthicum 2010.Search in Google Scholar
Practice Committee of the American Society for Reproductive Medicine: Report on varicocele and infertility. FertilSteril 2008; 90 (5 Suppl.): S247–S249.10.1016/j.fertnstert.2008.08.05019007639Search in Google Scholar
Grasso M, Lania C, Castelli M, Galli L, Franzoso F, Rigatti P: Low-grade left varicocele in patients over 30 years old: the effect of spermatic vein ligation on fertility. BJU Int 2000; 85: 305–307.10.1046/j.1464-410x.2000.00437.xSearch in Google Scholar
Yamamoto M, Hibi H, Hirata Y, Miyake K, Ishigaki T: Effect of varicocelectomy on sperm parameters and pregnancy rate in patients with subclinical varicocele: a randomized prospective controlled study. J Urol 1996; 155: 1636–1638.10.1016/S0022-5347(01)66149-4Search in Google Scholar
Studniarek M, Skrobisz-Balandowska K, Modzelewska E: Scrotal imaging. J Ultrason 2015; 15: 245–258.10.15557/JoU.2015.0021Search in Google Scholar
American Institute of Ultrasound in Medicine; American College of Radiology; Society of Radiologists in Ultrasound: AIUM practice guideline for the performance of scrotal ultrasound examinations. J Ultrasound Med 2011; 30: 151–155.10.7863/jum.2011.30.1.151Search in Google Scholar
Kozakowski KA, Gjertson CK, Decastro GJ, Poon S, Gasalberti A, Glassberg KI: Peak retrograde flow: a novel predictor of persistent, progressive and new onset asymmetry in adolescent varicocele. J Urol 2009; 181: 2717–2723.10.1016/j.juro.2009.02.038Search in Google Scholar
Goren MR, Erbay G, Ozer C, Kayra MV, Hasirci E: Can we predict the outcome of varicocelectomy based on the duration of venous reflux? Urology 2016; 88: 81–86.10.1016/j.urology.2015.11.032Search in Google Scholar
Rifkin MD, Foy PM, Kurtz AB, Pasto ME, Goldberg BB: The role of diagnostic ultrasonography in varicocele evaluation. J Ultrasound Med 1983; 2: 271–275.10.7863/jum.1983.2.6.271Search in Google Scholar
Gonda RL Jr, Karo JJ, Forte RA, O’Donnell KT: Diagnosis of subclinical varicocele in infertility. AJR Am J Roentgenol 1987; 148: 71–75.10.2214/ajr.148.1.71Search in Google Scholar
Hoekstra T, Witt MA: The correlation of internal spermatic vein palpability with ultrasonographic diameter and reversal of venous flow. J Urol 1995; 153: 82–84.10.1097/00005392-199501000-00029Search in Google Scholar
McClure RD, Khoo D, Jarvi K, Hricak H: Subclinical varicocele: the effectiveness of varicocelectomy. J Urol 1991; 145: 789–791.10.1016/S0022-5347(17)38452-5Search in Google Scholar
Eskew LA, Watson NE, Wolfman N, Bechtold R, Scharling E, Jarow JP: Ultrasonographic diagnosis of varicoceles. FertilSteril 1993; 60: 693–697.10.1016/S0015-0282(16)56224-4Search in Google Scholar
MetinA, Bulut O, Temizkan M: Relationship between the left spermatic vein diameter measured by ultrasound and palpated varicocele and Doppler ultrasound findings. IntUrolNephrol 1991; 23: 65–68.10.1007/BF02549730Search in Google Scholar
Orda R, Sayfan J, Manor H, Witz E, Sofer Y: Diagnosis of varicocele and postoperative evaluation using inguinal ultrasonography. Ann Surg 1987; 206: 99–101.10.1097/00000658-198707000-00015Search in Google Scholar
Sarteschi LM: Lo studio delvaricocele con eco-color-Doppler. G ItalUltrasonologia 1993; 4: 43–49.Search in Google Scholar
Chiou RK, Anderson JC, Wobig RK, Rosinsky DE, Matamoros A Jret al.: Color Doppler ultrasound criteria to diagnose varicoceles: correlation of a new scoring system with physical examination. Urology 1997; 50: 953–956.10.1016/S0090-4295(97)00452-4Search in Google Scholar
Iosa G, Lazzarini D: Hemodynamic classification of varicoceles in men: our experience. J Ultrasound 2013; 16: 57–63.10.1007/s40477-013-0016-y377490524294344Search in Google Scholar
Valentino, M., Bertolotto M, Derchi L, Pavlica P: Children and adults varicocele: diagnostic issues and therapeutical strategies. J Ultrasound 2014; 17: 185–193.10.1007/s40477-014-0088-3414212425177391Search in Google Scholar
Diamond DA, Gargollo PC, Caldamone AA: Current management principles for adolescent varicocele. FertilSteril 2011; 96: 1294–1298.10.1016/j.fertnstert.2011.10.03422130100Search in Google Scholar
Diamond DA, Zurakowski D, Bauer SB, Borer JG, Peters CA, Cilento BG Jret al.: Relationship of varicocele grade and testicular hypotrophy to semen parameters in adolescents. J Urol 2007; 178: 1584–1588.10.1016/j.juro.2007.03.16917707046Search in Google Scholar
Patil V, Shetty SM, Das SK: Redefining the criteria for grading varicoceles based on reflux times: a clinicoradiological correlation. Ultrasound Q 2016; 32: 82–85.10.1097/RUQ.000000000000016826938036Search in Google Scholar
Dede O, Teke M, Daggulli M, Utangaç M, Baş O, Penbegül N: Elastography to assess the effect of varicoceles on testes: a prospective controlled study. Andrologia 2016; 48: 257–261.10.1111/and.1244026011193Search in Google Scholar
Geatti O, Gasparini D, Shapiro B: A comparison of scintigraphy, thermography, ultrasound and phlebography in grading of clinical varicocele. J Nucl Med 1991; 32: 2092–2097.Search in Google Scholar
Merla A, Ledda A, Di Donato L, Romani GL: Assessment of the effects of varicocelectomy on the thermoregulatory control of the scrotum. FertilSteril 2004; 81: 471–472.10.1016/j.fertnstert.2003.07.018Search in Google Scholar
Kulis T, Kolaric D, Karlovic K, Knezevic M, Antonini S, Kastelan Z: Scrotal infrared digital thermography in assessment of varicocele– pilot study to assess diagnostic criteria. Andrologia 2012; 44 (Suppl. 1): 780–785.10.1111/j.1439-0272.2011.01265.xSearch in Google Scholar
Mali WP, Oei HY, Arndt JW, Kremer J, Coolsaet BL, Schuur K: Hemodynamics of the varicocele. Part I. Correlation among the clinical, phlebographic and scintigraphic findings. J Urol 1986; 135: 483–488.10.1016/S0022-5347(17)45700-4Search in Google Scholar
Minayoshi K, Okada H, Fujisawa M, Yamasaki K, Kamidono S: Hemodynamic evaluation of left testicular varicocele by scrotal scintigraphy. Eur Urol 2001; 39: 30–35.10.1159/00005240911173936Search in Google Scholar
Fuse H, Nozaki T, Ohta S, Seto H: Sequential scrotal scintigraphy for the study of varicocele. IntUrolNephrol 1999; 31: 511–517.10.1023/A:1007119412947Search in Google Scholar
Ahlberg NE, Bartley O, Chidekel N, Fritjofsson A: Phlebography in varicocelescroti. ActaRadiolDiagn (Stockh) 1966; 4: 517–528.10.1177/0284185166004005065920098Search in Google Scholar
Lund L, Hahn-Pedersen J, Højhus J, Bojsen-Møller F: Varicocele testis evaluated by CT-scanning. Scand J UrolNephrol 1997; 31: 179–182.10.3109/003655997090703269165583Search in Google Scholar
Lewis DS, Grimm LJ, Kim CY: Left renal vein compression as cause for varicocele: prevalence and associated findings on contrast-enhanced CT. Abdom Imaging 2015; 40: 3147–3151.10.1007/s00261-015-0512-y26210372Search in Google Scholar
Arslan H, Etlik O, Ceylan K, Temizoz O, Harman M, Kavan M: Incidence of retro-aortic left renal vein and its relationship with varicocele. Eur Radiol 2005; 15: 1717–1720.10.1007/s00330-004-2563-215726381Search in Google Scholar
El-Saeity NS, Sidhu PS: “Scrotalvaricocele, exclude a renal tumour”. Is this evidence based? ClinRadiol 2006; 61: 593–599.10.1016/j.crad.2006.02.01116784945Search in Google Scholar
Chandramohan S, Chakravertry S: Re: “Scrotalvaricocoele, exclude a renal tumour”. Is this evidence based? ClinRadiol 2007; 62: 192–193.10.1016/j.crad.2006.09.02117207706Search in Google Scholar
von Heijne A: Recurrent varicocele. ActaRadiol 1997; 38: 1020–1022.10.3109/02841859709172122Search in Google Scholar
Karakas E, Karakas O, Cullu N, Badem OF, Boyaci FN, Gulum M et al.: Diffusion-weighted MRI of the testes in patients with varicocele: a preliminary study. AJR Am J Roentgenol 2014; 202: 324–328.10.2214/AJR.13.1059424450672Search in Google Scholar
