Leydig cells are the major source of androgen in the male mammal. We describe here for the first time the development of the Leydig cell in a macropodid marsupial, the tammar wallaby, Macropus eugenii. Leydig cells are first recognized morphologically 2 days after birth with the appearance of lipid droplets in the cytoplasm of certain interstitial cells. Lipid content closely matches the steroi...

Aim: Our aim was to gain an idea about testicular injury by comparing the reduced volume, which is one of indirect indicators damage in undescended testes, and evaluating microvascular blood flow superb imaging, also determine whether imaging modes could detect more detail decreased volume testes. Material methods: We compared testes via conventional Doppler color monochrome techniques with con...

Testis size, stimulated testosterone concentrations and mating performance (serving capacity, libido score and serve:mount ratio) of 14 Dorper rams were measured in the breeding season (March) in order to determine the influence of testis size and testosterone concentration on mating performance. Results indicated statistically non-significant (P>0,05) correlations between testis size and stimu...

Sonography, a non-invasive, quick method without biological impact on the gonad, has greatly improved the diagnostic possibilities; it is the gold standard for the male genital system (gonads and genito-urinary tract) and in fact has oriented the prevention interventions [1]. It recognizes almost 100% of scrotal lesions and their solid, liquid or complex nature. It has allowed to overcome the l...

OBJECTIVE To report our experience in the management of testicular torsion with emphasis on seasonal variation, salvage rate and the status of the torted testis 3-6 months after orchidopexy. SUBJECTS AND METHODS Seventy-five patients with a presumptive diagnosis of testicular torsion, who presented to our hospital between January 1999 and December 2002, were included in the study. Following s...

A retrospective analysis of 108 cases of primary germ cell tumours of testis seen over a 6 year period at Institute Rotary Cancer Hospital of All India Institute of Medical Sciences, New Delhi is presented. There were 45 (42%) cases of seminoma and 63 (48%) of non-seminomatous germ cell tumours (NSGCT). The median age at presentation was 35 and 30 years respectively. Almost half (56) patients p...

This research aims to study testis and epididymis of dry land goat (Capra hircus) on B-mode ultrasound imaging. Twelve adult local male goats were examined normal testes ultrasonic appearances. real time scanner with a 7.5 MHz, linear array transducer was used evaluate the echotexture testicular parenchyma, mediastinum epididymis. The parenchyma represented uniformly homogenous moderately echog...

OBJECTIVE Compensatory hypertrophy has been classically described in patients with monorchidism. However, it remains unclear whether there is a functional compensatory activity of the different cell populations. Our aim was to assess the functional capacity of the solitary testis in monorchid males from infancy through puberty in order to determine whether the remaining gonad is capable of comp...

Objective The main purpose of this study is to evaluate the effects of varicocelectomy on serum testosterone levels and semen quality in infertile men who suffer from varicocele. MaterialsAndMethods This prospective study enrolled 115 subjects with clinical varicocele grades II and III and 240 fertile men as the control group. Total volume of testosterone serum level (ng/dl) and semen quality w...