نتایج جستجو برای: cryptorchidism

تعداد نتایج: 1741  

Journal: :International braz j urol : official journal of the Brazilian Society of Urology 2013
Guilherme D Tostes Suelen F Costa João P de Carvalho Waldemar S Costa Francisco J B Sampaio Luciano A Favorito

OBJECTIVES Report the incidence and structure of testicular appendices (TAs) in patients with cryptorchidism, comparing their incidence with epididymal anomalies (EA) and patency of the vaginal process (PVP) and analyzes the structure of TAs. MATERIAL AND METHODS We studied 72 testes of patients with cryptorchidism (average of 6 years), and 8 testes from patients with hydroceles (average of 9...

2005
Rajiv Bhatia Rita Shiau Myrto Petreas June M. Weintraub Lili Farhang Brenda Eskenazi

Increasing rates of cryptorchidism and hypospadias in human populations may be caused by exogenous environmental agents. We conducted a case-control study of serum levels of p,p'-dichlorodiphenyltrichloroethane (DDT) and its major metabolite, p,p'-dichlorodiphenyldichloroethylene (DDE), and cryptorchidism and hypospadias in the Child Health and Development Study, a longitudinal cohort of pregna...

Journal: :International braz j urol : official journal of the Brazilian Society of Urology 2006
M Silva-Ramos J M Oliveira J M Cabeda A Reis J Soares A Pimenta

PURPOSE We examined the significance of the CAG repeat polymorphism in the pathogenesis of cryptorchidism. MATERIALS AND METHODS Genomic deoxyribonucleic acid (DNA) was extracted from blood samples from 42 cryptorchid boys and from 31 non-cryptorchid control subjects. In the cryptorchid group, 7 had bilateral cryptorchidism and 6 had patent processus vaginalis in the contralateral side. To de...

Journal: : 2023

BACKGROUND: The frequency of cryptorchidism varies and depends on gestational age, affecting 1.04.6% full-term 1.145% preterm newborns. Treatment this defect is currently surgical. Orchiopexy one the frequent surgical aids in practice a pediatric surgeon urologist. need for bilateral inguinal to perform several incisions or separate operations each side by time forces surgeons continue searchin...

Journal: :Medycyna Weterynaryjna 2023

Cryptorchidism in horses is the most common congenital malformation, caused by a failure descent of testicles from abdominal cavity into scrotum. As result, there partial or complete loss reproductive potential although production and secretion steroid sex hormones anti-Mueller hormone, as well behavioral characteristics stallion, are maintained. The exact location undescended testis establishe...

2015
Jaakko J. Koskenniemi Helena E. Virtanen Hannu Kiviranta Ida N. Damgaard Jaakko Matomäki Jørgen M. Thorup Timo Hurme Niels E. Skakkebaek Katharina M. Main Jorma Toppari

BACKGROUND Congenital cryptorchidism, i.e. failure of the testicular descent to the bottom of the scrotum, is a common birth defect. The evidence from epidemiological, wildlife, and animal studies suggests that exposure to mixtures of endocrine disrupting chemicals during fetal development may play a role in its pathogenesis. We aimed to assess the association between cryptorchidism and prenata...

Journal: :PLoS ONE 2008
Ida N. Damgaard Tina K. Jensen Jørgen H. Petersen Niels E. Skakkebæk Jorma Toppari Katharina M. Main

BACKGROUND Risk factors for congenital cryptorchidism were investigated in a prospective birth cohort study in Denmark and Finland from 1997 to 2001. METHODOLOGY AND PRINCIPAL FINDINGS In total, 2,496 boys were examined for cryptorchidism at birth (cryptorchid/healthy: 128/2,368) and three months old (33/2,215). Information on risk factors was obtained antenatally (questionnaire/interview) or...

2014
Joon Ho Moon Dae Young Yoo Young Kwang Jo Geon A Kim Hyo Young Jung Jung Hoon Choi In Koo Hwang Goo Jang

Cryptorchidism is one of the most common genital defects in dogs. This study investigated the effects of abdominal cryptorchidism on morphology, cell proliferation, and Sertoli cell condition in a dog with spontaneous unilateral cryptorchidism. Elective orchidectomy was performed on the abdominal right testis and the scrotal left testis. Significant reductions in numbers of spermatogonia, sperm...

2014
Ajay Thankamony Ngee Lek Dan Carroll Martyn Williams David B. Dunger Carlo L. Acerini Ken K. Ong Ieuan A. Hughes

BACKGROUND Anogenital distance (AGD) in animals is a sensitive biomarker of fetal endocrine disruption and the associated testicular dysgenesis syndrome (TDS). However, AGD in human infants with cryptorchidism and hypospadias, which are potential manifestations of TDS during childhood, is not clearly described. OBJECTIVE Our aim was to compare AGD in boys with cryptorchidism or hypospadias ag...

2014
Karin Sørig Hougaard Ann Dyreborg Larsen Harald Hannerz Anne-Marie Nybo Andersen Kristian Tore Jørgensen Gunnar Vase Toft Jens Peter Bonde Morten Søndergaard Jensen

BACKGROUND Cryptorchidism (undescended testes) is associated with poor male fertility, but can be alleviated and fertility preserved to some degree by early detection and treatment. Here we assess the influence of socio-occupational class, geographical region, maternal age and birth cohort on time to detection and correction of cryptorchidism. METHODS All boys born in Denmark, 1981 to 1987 or...

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