Cryptorchidism hub

Cryptorchidism is defined as failure of testicular descent into the scrotum. Cryptorchid testes do not usually produce spermatozoa and probably produce somewhat subnormal amounts of androgen. Experiments with laboratory animals shows that cryptorchidism can be induced readily through in utero exposure to anti-androgenic and estrogenic contaminants.

Overviews - Full text articles - Diagnosis & Treatment - Case reports - Research projects

The Undescended Testicle: Diagnosis and Management - by Steven G. Docimo, M.D., University of Pittsburgh School of Medicine;  Richard I. Silver, M.D., Jefferson Medical College of Thomas Jefferson University;  William Cromie, M.D., University of Chicago Pritzker School of Medicine.

Undescended testicles - by Loma Linda University Children's Hospital.

Information About Undescended Testicle (Cryptorchidism) - by Christopher S. Cooper, M.D., Pediatric Urologist.

Cryptorchidism with neoplastic transformation - by G. Verswijfel, V. Franssens, L. Deraemaeker, G. Leyssens, G. Fransen and P. Theunissen.

Undescended testicle by MEDLINEplus Medical Encyclopedia - updated by David R. Knowles M.D., Department of Urology, New York-Presbyterian Hospital Columbia Campus, New York, NY.

The Facts on Undescended Testicles by KidsHealth - from the Nemours Foundation.

Undescended Testicle (Testis): Cryptorchidism - by Steven G. Docimo, MD.

Cryptorchidism from eMedicine Journal - by Vikram Dogra, MD, Assistant Professor of Radiology, Case Western Reserve University, Department of Radiology, Director Division of Ultrasound, University Hospitals of Cleveland.

The Undescended Testicle (Testis): Cryptorchidism - by Steven G. Docimo, M.D., FAAP, FACS.

Failure of Migration and Descent of the Testis - by David A. Hatch, M.D.

Undescended Testicle or Cryptorchidism - by Pediatric Urology, Cornell University.

Cryptorchidism by Werther Adrián Clavelli, MD, Luís Flávio Gonçalves, MD, Philippe Jeanty, MD, PhD

Undescended Testes (Cryptorchidism) - by the Medical Center of Central Georgia.

Cryptorchidism (Undescended Testes) - by Richard M. Parker, M.D.

Undescended Testicle (Cryptorchidism) - by Queen's University, Department of Urology.

Environmental factors and male reproductive functions - a cohort study of the incidence of cryptorchidism and hypospadia in 500 newborn boys in the Rotterdam area.

Cryptorchidism by the University of Chiago Pediatrics Clerkship Pritzker School of Medicine

Cryptorchidism (Undescended Testes) - from Colorado HealthSite, Pediatric Urology Center.

Cryptorchidism by Dr. Al Gandy (MD.,Phd.,FRCP(c)

Cryptorchidism and xenoestrogens. Is there an assiciation? - by University of Granada.

Cryptorchidism in Animals

Cryptorchidism Associated With 78,XY/79,XXY Mosaicism in Dog - by B. Goldschmidt, K.B. El-Jaick, L.M. Souza, E.C.Q. Carvalho, V.L.S. Moura,  I.M. Benevides Filho.

Cryptorchidism in the Horse - by Dr. Bob Wright, Ontario Ministry of Agriculture, Food and Rural Affairs, Fergus, Ontario, Canada and Drs. Ludovic Boure and Dan Kenney, Ontario Veterinary College, University of Guelph, Guelph, Ontario, Canada.

PetCARE FAQ-Cryptorchid - written by Dr. Peggy Root.

Canine and Feline Cryptorchidism - by M. Memon and A. Tibary, Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, USA.

Friesian Horses - the Warmblood Friesian Horse - by Professor David Galloway, University of Melbourne.

Cryptorchidism in Dogs - by Jeff Wayman, DVM.

Cryptorchidism from Bearded Collie Foundation for Health

Cryptorchidism in Boxers - by Northwoods Boxer Club.

Cryptorchidism in the colt - by Jos Mottershead.

Cryptorchidism by Jennifer Freeman, DVM

Cryptorchidism in the Cat - by Susan Little DVM, Diplomate ABVP (Feline Practice).

Equine Cryptorchidism (RIG) Tests - by North Western Laboratories Limited, Lancashire, England.

Cryptorchidism from Love My Pet's


Cryptorchidism and Hypospadias in Sons of Gardeners and Farmers - by Ida Sloth Weidner, Henrik Møller, Tina Kold Jensen, and Niels E. Skakkebæk.

A New Mouse Trasgene Insertional Mutation Causing Cryptorchidism - by C. E. Bishop, P. A. Overbeek, J. B. Houston, R. Sutherland, H. L. Boettger-Tong, A. I. Agulnik, Baylor College of Medicine.

Experimental cryptorchidism induces a change in the pattern of expression of luteinizing hormone receptor messenger ribonucleic acid in rat testis after selective leydig cell destruction by ethylene dimethane sulfonate - by M Tena-Sempere, J Kero, A Rannikko and I Huhtaniemi, Department of Physiology, University of Turku, Finland.

Effects of temporary cryptorchidism on the testes and the subsequent fertility of adult male rats - by B.P.Setchell and Aida Wahab-Wahlgren.

Effects of Unilateral Cryptorchidism on Contralateral Epididymal Sperm Quality, Quantity and Fertilizing Capacity - by Takayuki Kaki and Nikolaos Sofikitis, Department of Urology, Faculty of Medicine, Tottori University, Yonago, Japan.

International Trends in Rates of Hypospadias and Cryptorchidism - by Leonard J. Paulozzi, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA.

Effects of varying definitions of cryptorchidism on the risk of testicular cancer

Study Finds Strong Link Between Greatly Elevated Fat Tissue Levels of Heptachloroepoxide (HCE) and Hexachlorobenzene (HCB) and Undescended Testicles (Cryptorchidism)in Young Boys

Images - Slides

Cryptorchidism and Testicular Atrophy - a slide by David S Wilkinson, MD, PhD.

Cryptorchidism by Bristol Biomedical Image Archive

Cryptorchidism by the Echt Center, Michigan State University, College of Human Medicine

Cryptorchidism & Testicular Atrophy - a slide by Patrick D. Walker, M.D.

Slide:Cryptorchid testis - seminiferous tubules are dilated and show no evidence of spermotagenesis.

News archives - News releases

Scientists show hormone involved in cryptorchidism - by the University of Texas Southwestern Medical Center at Dallas.

Last modified: January 21, 2002. Admin
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