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Updated: Aug 6, 2026
10:59
Human Blastocyst Biopsy and Vitrification
Published on: July 26, 2019
From testicular biopsy to human embryo
D Jezek1, N Knezević, S Kalanj-Bognar
1University of Zagreb, Medical School, Dept. of Histology and Embryology.
Verhandlungen Der Deutschen Gesellschaft Fur Pathologie
|August 9, 2006
Summary
Testicular biopsy aids in diagnosing and treating male infertility due to non-obstructive azoospermia. Sperm retrieval from biopsies is successful in most cases, enabling in vitro fertilization procedures.
Area of Science:
- Reproductive Medicine
- Andrology
- Histopathology
Background:
- Non-obstructive azoospermia is a significant cause of male infertility.
- Accurate diagnosis and effective therapeutic strategies are crucial for managing this condition.
Purpose of the Study:
- To evaluate the diagnostic and therapeutic utility of testicular biopsy in men with non-obstructive azoospermia.
- To assess the success rate of sperm retrieval for in vitro fertilization (IVF) procedures.
Main Methods:
- Seventy testicular biopsies were analyzed using open testicular biopsy.
- Tissue samples were processed for light microscopy, transmission electron microscopy, and cryopreservation for IVF.
- Histological examination identified various pathological changes in seminiferous tubules.
Main Results:
- Histological analysis revealed impaired spermatogenesis in 62 out of 70 cases.
- Foci of preserved spermatogenesis ('mixed atrophy') were detected in 65% of cases.
- Successful sperm extraction for IVF was achieved in 63% of infertile patients.
Conclusions:
- Testicular biopsy is a valuable diagnostic tool for non-obstructive azoospermia.
- It facilitates therapeutic decisions and enables sperm retrieval for assisted reproductive technologies.
- Histological findings guide the management of male infertility.
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