Definitions for "Testicular Sperm Extraction"
A procedure performed on an outpatient (usually under local anesthesia) basis where one or more hair-thin biopsy specimens are removed and delivered to the embryology laboratory for sperm to be removed for ICSI.
(TESE) Dissection into the testis itself, in men with azoospermia due to maturation arrest, to recover (by 'teasing out') immature sperm cells from the (often small) fraction of testicular tubules there which still contain such cells. The sperm cells are used for in vitro fertilisation using intracytoplasmic sperm insertion (ICSI).
Microsurgical technique used to retrieve sperm directly from the testes after testicular blopsy. Sperm retrieved from the recovered testicular tissue are used for further fertilization through intracytoplasmic sperm injection (ICSI). TESE is used in instances where no sperm are stored in the epididymis or when there is no epididymis (see also ICSI and MESA).