This video shows was microsurgical epididymal sperm aspiration (MESA). MESA is one of the methods of surgical sperm retrieval. An open surgical sperm retrieval procedure that uses an operating microscopy to locate the tubules of the epididymis precisely, so that large numbers of sperm can be extracted. Video produced by Peter N. Schlegel, M.D. and Philip S. Li, M.D. Center for Male Reproductive Medicine and Microsurgery, Cornell Institute for Reproductive Medicine, and Department of Urology, Weill Cornell Medical College.
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