Fine-needle and large-needle percutaneous aspiration biopsy of testicles in men with nonobstructive azoospermia: Safety and diagnostic performance

The combination of FNA and LNAB did not produce clinically or subclinically relevant complications. No important differences in the identification of category 1 with FNA or LNAB were found. Fine-needle aspiration was more adequate in identifying category 3, which was particularly relevant in 20% of the men who had these cells in at least one of the two testicles.