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The rete testis (/ ˈ r iː t i ˈ t ɛ s t ɪ s / REE-tee TES-tis; pl.: retia testes) is an anastomosing network of delicate tubules located in the hilum of the testicle (mediastinum testis) that carries sperm from the seminiferous tubules to the efferent ducts. It is the homologue of the rete ovarii in females. [1]
Ultrasound image showing tubular ectasia of the rete testis as an incidental finding in an 81 year old male. Rete tubular ectasia, also known as cystic transformation of rete testis [1] is a benign condition, usually found in older men, involving numerous small, tubular cystic structures within the rete testis.
Transillumination test is positive when a hydrocele is present, often resulting in a misdiagnosis of epididymitis, which is more commonly associated with hydrocele. The ultrasound findings of paratesticular rhabdomyosarcoma are variable. It usually presents as an echo-poor mass [Fig. 11a] with or without hydrocele.
Normally, the communication between the processus vaginalis and the peritoneum is obliterated, and the tunica vaginalis is the tissue that remains overlying the testis and the epididymis. Congenital hydrocele testis results when the processus vaginalis remains, allowing fluid from the peritoneum to accumulate in the scrotum. [citation needed]
It supports the rete testis and blood and lymphatic vessels of the testis in their passage into and out of the substance of the gland. [ 3 ] The septa testis - extensions of the tunica albuginea into the substance of the testis that form fibrous partitions - converge towards the mediastinum testis.
Diagnosis may involve testing urine samples or an ultrasound. Treatment can include antibiotics, medications to address pain and swelling, or surgical removal of the epididymis. [18] Epididymal cysts is a mass that forms in the epididymis. [10] These cysts differ from spermatoceles as they contain clear fluid, rather than seminal fluid.
Today, Doppler ultrasound is a common test: it can demonstrate areas of blood flow and can distinguish clearly between epididymitis and torsion. However, as torsion and other sources of testicular pain can often be determined by palpation alone, some studies have suggested that the only real benefit of an ultrasound is to assure the person that ...
The tunica albuginea is a dense, [1] [2] blue-white [3] layer of fibrous tissue surrounding the testis. [1] [4] It is the middle of three envelopes forming the capsule of the testis; it is deep to the visceral layer of tunica vaginalis, and superficial to the tunica vasculosa testis (vascular layer of testis).