Cryptorchidism: Ultrastructure of Normal and Cryptorchid Testis Development by F. HadziselimovicCryptorchidism: Ultrastructure of Normal and Cryptorchid Testis Development by F. Hadziselimovic

Cryptorchidism: Ultrastructure of Normal and Cryptorchid Testis Development

byF. Hadziselimovic

Paperback | August 1, 1977

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Cytological techniques have greatly improved in the last twenty years, largely as a result of further development of the microscope. Electron microscopy, in particular, has opened up great prospects for the study of cell morphology, while the develop­ ment of radio-immuno-assay has brought great progress in endocrinology. The applica­ tion of these two techniques, which are complementary to each other and provide mutually supporting evidence, is the subject of this monograph. The work is divided into two parts. The first deals with the ultrastructure of normal testicular development, describing four main elements of the testicle - the germ cells, the Sertoli cells, the peri tubular connective tissue and the Leydig cell- with details of their individual development. To make the electron micrographs more easily understandable, diagrams have been used to explain the most important points. The second part deals with cryptorchid testicles, including the primary and sec­ ondary changes involved and morphometric studies of the secondary changes. The significance of these ultrastructural observations for the treatment of cryptorchidism is emphasized. With the aid of radio-immuno-assay the level of testosterone in cryp­ torchid mice was determined and comparisons drawn between the ultrastructural changes in cryptorchidism in mouse and man. The experimental studies served as a basis for the hypothesis that, in all probability, a congenital disturbance of the hy­ pothalamo-hypophyso-gonadal axis is responsible for cryptorchidism. I hope that this monograph will contribute towards a better understanding of normal and cryptorchid testicular development and of the etiology of cryptorchidism.
Title:Cryptorchidism: Ultrastructure of Normal and Cryptorchid Testis DevelopmentFormat:PaperbackPublished:August 1, 1977Publisher:Springer Berlin HeidelbergLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:3540083618

ISBN - 13:9783540083610

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Table of Contents

Preface.- Material and Methods.- 1. Biopsies from Child Testicles.- 2. Animal Experiments.- The Normal Testicle.- 1. General Observations on the Development of the Normal Testicle in Children.- a) The First Year of Life.- b) The Fourth Year.- c) Puberty.- 2. Germ Cells.- a) Gonocytes.- b) Spermatogonia.- c) Primary Spermatocytes.- d) Degenerated Cells.- 3. Sertoli Cells.- a) Fetal Sertoli Cells.- b) Sa-type.- c) Sb-type.- d) Sc-type.- e) The Function of the Sertoli Cell.- f) Hormone Production.- 4. Peritubular Connective Tissue.- a) The Development of the Peritubular Structures.- b) One-year-olds.- c) Thirteen-year-olds.- d) The Function of the Peritubular Connective Tissue.- 5. LeydigCells.- a) The Development of the Leydig Cells.- b) The First Year.- c) Leydig Cells in Six-year-old Boys.- d) Puberty.- Cryptorchidism.- 1. Germ Cells.- a) The First Year.- b) The Third Year.- c) The Sixth Year until Puberty.- 2. Sertoli Cells.- 3. Peritubular Connective Tissue.- 4. Leydig Cells.- 5. Estrogen Induced Cryptorchidism in Mice.- a) Newborn Mice.- b) Adult Mice.- c) Testosterone Content.- Discussion.- Therapy.- Programme of Therapy.- Summary.- Acknowledgements.- References.