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Micro-TESE (microdissection testicular sperm extraction). Intraoperative photographs of a micro-TESE in a patient with nonobstructive azoospermia (NOA). The testis is transversely bivalved and dilated under optical magnification. Opaque tubules (circled in black) are retrieved, as these are more likely to contain seminiferous tubules with complete spermatogenesis.
