Testicular biopsy of secretory azoospermia: electron and light microscopic analysis. 1978

M Camatini, and M Faleri, and E Franchi

The histological and ultrastructural features of testicular cells were examined in testes with secretory azoospermia in seven patients with germinal cell arrest, two with Sertoli-cell-only; and one with tubular hyalinization. Germinal cell arrest was characterized by the presence of spermatogonia AD, AP, B, and some primary spermatocytes: these cells had similar ultrastructural features typical of the adult normal testis. Sertoli cells contained large number of various lipid inclusions and lipofuscin bodies. The multilayered peritubular wall presented increased collagen fibers. The cytoplasm of Leydig cells was filled with dilated vesicles of smooth endoplasmic reticulum and precursors of Reinke crystalloids. A blockage in the seminiferous tubules occurred after puberty, when tubular components, peritubular wall and Leydig cells had reached maturity.

UI MeSH Term Description Entries
D007985 Leydig Cells Steroid-producing cells in the interstitial tissue of the TESTIS. They are under the regulation of PITUITARY HORMONES; LUTEINIZING HORMONE; or interstitial cell-stimulating hormone. TESTOSTERONE is the major androgen (ANDROGENS) produced. Interstitial Cells, Testicular,Leydig Cell,Testicular Interstitial Cell,Testicular Interstitial Cells,Cell, Leydig,Cell, Testicular Interstitial,Cells, Leydig,Cells, Testicular Interstitial,Interstitial Cell, Testicular
D008297 Male Males
D009845 Oligospermia A condition of suboptimal concentration of SPERMATOZOA in the ejaculated SEMEN to ensure successful FERTILIZATION of an OVUM. In humans, oligospermia is defined as a sperm count below 20 million per milliliter semen. Cryptospermia,Cryptozoospermia,Low Sperm Count,Hypospermatogenesis,Oligoasthenoteratozoospermia,Oligozoospermia,Cryptospermias,Cryptozoospermias,Hypospermatogeneses,Low Sperm Counts,Oligoasthenoteratozoospermias,Sperm Count, Low,Sperm Counts, Low
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012671 Seminiferous Tubules The convoluted tubules in the TESTIS where sperm are produced (SPERMATOGENESIS) and conveyed to the RETE TESTIS. Spermatogenic tubules are composed of developing germ cells and the supporting SERTOLI CELLS. Seminiferous Tubule,Tubule, Seminiferous,Tubules, Seminiferous
D012708 Sertoli Cells Supporting cells projecting inward from the basement membrane of SEMINIFEROUS TUBULES. They surround and nourish the developing male germ cells and secrete the ANDROGEN-BINDING PROTEIN and hormones such as ANTI-MULLERIAN HORMONE. The tight junctions of Sertoli cells with the SPERMATOGONIA and SPERMATOCYTES provide a BLOOD-TESTIS BARRIER. Sertoli Cell,Cell, Sertoli,Cells, Sertoli
D013737 Testis The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS. Testicles,Testes,Testicle

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