In this review, we examine the evolution and application of various diagnostic modalities for varicoceles starting with venography,
scintigraphy, and thermography and their role in the evaluation of a varicocele patient. Some of these methods have been supplanted
by less invasive and more easily performed diagnostic modalities, especially ultrasound and Doppler examination of the scrotum.
Advances in ultrasound and magnetic resonance imaging hold the potential to expand the role of imaging beyond that of visual
confirmation and characterization of varicoceles. The ability to identify the early indicators of testicular dysfunction based on
imaging findings may have implications for the management of varicoceles in the future.

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