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  • Title: [Anastomosis between the left internal spermatic and splanchnic veins. Retrospective analysis of 305 patients].
    Author: Salerno S, Cannizzaro F, Lo Casto A, Romano P, Bentivegna E, Lagalla R.
    Journal: Radiol Med; 2000 May; 99(5):347-51. PubMed ID: 10938703.
    Abstract:
    PURPOSE: To investigate the presence and the rate of anastomoses between the internal spermatic vein (ISP) and visceral veins in patients with idiopathic varicocele. MATERIAL AND METHODS: We retrospectively reviewed the venographic findings of 305 patients (age range 14-40 years; mean age 28 years) with a US diagnosis of varicocele who were submitted to sclerotherapy from 1991 to 1997. All the venographic examinations had been carried out with selective injection of the ISP for complete mapping of gonadal vessels. RESULTS: The most frequent venographic patterns (type I) was identified in 139/305 patients (45.5%), type III was found in 86/305 (28.2%), type V in 37/305 (12.1%). Type IVb was found in 32 cases (10.4%) and type IVa in 9 (2.9%). Type II was seen in 2/305 patients only (0.6%). Single or double anastomoses between the ISP and portal or systemic veins were found in 34 patients (11.1%); a single or double communication with the left colic vein was observed in 24 cases (7.8%) and a communication with the paravertebral venous system in 10 patients (3.2%). Other anastomoses with the inferior mesenteric veins and splenic veins were seen in 7 and 4 patients (2.2% and 1.3%, respectively). DISCUSSION AND CONCLUSION: The presence of vascular variants and of communications of the ISP with the visceral veins needs accurate venographic studies preliminary to sclerotherapy and a skilled interventional radiologist in order to reduce the number of recurrences.
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