Studies over 3 years showed that testicular volume falls during summer and autumn when forage quality and availability decline and when rams are mating. Loss in testicular size may also occur in summer in the absence of mating activity and at a greater rate than loss in live weight. The results suggest that mating and nutrition may override the influence of photoperiod on testicular size and th...

"Burned-out" testicular tumor is a rare clinical entity. The term "burned-out" actually represents a spontaneously and completely regressed testicular tumor that manifests itself by metastasis to retroperitoneal region and mediastinal, supraclavicular, cervical and axillary lymph nodes. This is a different entity than primary extragonadal testicular tumors and is seen more rarely. Here we prese...

In 2012, testicular cancer was estimated to account for 940 disability adjusted life years in Australia; of these, 450 were years lost due to premature death and 500 were years of healthy life lost due to disease, disability, or injury (Australian Institute of Health and Welfare and Australasian Association of Cancer Registries, 2012). Testicular choriocarcinoma is one of the rarest variants of...

Male infertility is known to be associated with testicular tumors (Honig et al, 1994). In one recent report (Nobert and Goldstein, 2001), at least a 16-fold increase in the risk of testicular cancer, with seminoma being the most prevalent one, has been reported to be associated with male infertility. Generally, the standard initial treatment for testicular mass, in view of its high likelihood o...

A 31-year-old male with history of obesity, arthritis, and chronic back pain sustained blunt testicular trauma following a bicycling accident. He presented to the emergency department 3 weeks after the initial injury with complaints of right testicular pain and swelling. Scrotal ultrasound was concerning for testicular rupture (Fig. 1). Scrotal exploration with possible orchiectomy was recommen...

Abstract: Gynecomastia is a benign enlargement of male breast tissue due to the proliferation of the ductal component. It can be physiological or pathological. Gynecomastia can be a sign for testicular tumors including sex-cord stromal tumors and germ cell tumors. Testicular physical examination in combination with testicular untrasonography and serum germ cell tumor markers when necessary in t...

The pineal hormone melatonin regulates testicular function through the hypothalamic-adenohypophyseal axis. In addition, direct actions of melatonin in somatic cells of the testis have been described. Melatonin acts as a local modulator of the endocrine activity in Leydig cells. In Sertoli cells, melatonin influences cellular growth, proliferation, energy metabolism and the oxidation state, and ...