Patients with this disease require careful management for. The radical orchiectomy specimen contained an undifferentiated spindled sex cordstromal tumor arising in the rete testis. This is a benign condition thought to result from the partial or complete obliteration of the efferent ducts. A 34yearold tetraplegic patient with suppurative epididymitis was found on followup examination and ultrasonography to have a testicular mass. Very rarely give rise to an adenocarcinoma of the rete testis. Mar 16, 2020 rete testis is an anastomosing network of delicate channels located in the testicular hilum. The epididymis is a large structure that extends along the entire posterior margin of the testes from the superior pole to the inferior. To start viewing messages, select the forum that you want to visit from the selection below. The rete testis is a dilated intratesticular structure located directly under the tunica albuginea at the cranial pole of the testis fig. Origins, differentiation, and assembly of the component cell populations. Histologic diagnosis is difficult, and in the past the tumor may have been incorrectly identified in a number of cases, leading to misleading.
The tunica albuginea thickens extends inward to form the mediastinum testis. At testicular hilum complex tubular architecture may resemble teratoma connects testicular tubules to 12 15 ciliated efferent ducts, which merge into a single duct, the epididymis at its head. It is also near the arterial supply of the testis which comes from the testicular artery. It is lined by ciliated cuboidal epithelial cells that also contain microvilli. Seminiferous tubules convolutedstraight tubules rete testis in mediastinum testis efferent ducts epididymis ducts tail, body, then head ductus deferens. Most patients with adenocarcinoma of rete testis present with scrotal pain andor swelling and frequently tumors are masked by a hydrocele, hematocele, inguinoscrotal hernia, epididymitis etc. The activity of the cilia helps to move the spermatozoa along the tube, as they are immobile until they reach the epididymis. Sry ex pression is mainta ined after testis di fferentiatio n. Hyperplasia of the rete testis epithelium occurs as a focal or multifocal lesion and can be seen as an occasional incidental lesion in rats but more commonly in cd1 mice. Increases risk of relapse in a univariate analysis. Thin connective tissue septa from mediastinum testis separate testis into testicular lobules. From its superior end, the rete testis gives rise to 1220 efferent ductules that penetrate the capsule and connect with the epididymis where sperm cells become mobile and gain the ability to fertilize an egg. In peripheral area of the tumor, the remaining normal rete testis and. Rete testis definition of rete testis by the free dictionary.
Slides 73 and 75, labelled epididymis, are generally not well preserved. Rete testis definition at, a free online dictionary with pronunciation, synonyms and translation. Testicular sex cordstromal tumors are far less common than germ cell neoplasms and are usually benign. More common with sometimes subtle intertubular pattern of seminoma. Ultrasound image showing tubular ectasia of the rete testis as an incidental finding in an 81 year old male rete tubular ectasia is a benign condition, usually found in older men, involving numerous small, tubular cystic structures within the rete testis. Tubular ectasia of the rete testis tert is a benign entity due to dilation of the tubules of the rete testis. Proliferation of lining epithelium is present in the dilated rete testis.
Rete testis is an anastomosing network of delicate channels located in the testicular hilum. Rete testis 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 vasa efferentia. Rete testis definition of rete testis by medical dictionary. Pathology this is a benign condition thought to result from the partial or complet. A case of cystic dysplasia of the rete testis in a 17monthsold boy. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Rete testis channels drain into the efferent ductules that pass into the caput epididymis. Cystic dysplasia of the testis cdt is a benign, congenital malformation of the. These spermatozoacontaining cysts communicate with the tubular system into the epididymis. Tubular ectasia of rete testis radiology reference. The testicular artery is convoluted and is surrounded by the venous pampiniform plexus for heat exchange. We report a case of bilateral rete testisassociated epididymal cyst in patient with abdominal mass. Primary adenocarcinoma of rete testis with distinct biphasic. Synchronous bilateral testis cancer sbtc is a rare event. If this is your first visit, be sure to check out the faq by clicking the link above. Jan 22, 2016 congenital cystic dysplasia of the rete testis should not be confused with ectasia of the rete testis, which is incidentally found in a large number of middleaged and elderly men. Figure 1 testis, rete testis dilation in a male b6c3f1 mouse from a chronic study. Discussion cystic dilatation of the rete testis is a benign entity that can usually be diagnosed based on its typical sonographic appearance. There is still little knowledge about its etiology and pathogenesis. Within the left testis, tubular cystic areas are seen near mediastinum of testis tubular ectasia of the rete testes.
Tubular ectasia of rete testis represents dilated testicular mediastinal tubules. Testicular teratoma, mimicking a simple testicular cyst, in an infant. As only 5% of intratesticular tumours are benign, their significance in clinical practice is. A case of adenocarcinoma of the rete testis accompanied by. Other terms have been used for this abnormality, including ectasia, cystic ectasia, tubular ectasia, cystic transformation, or cystic dysplasia of the rete testis. The rete testis have concentrated sperm and fluid in them, and they help the epididymis to absorb this fluid. Testis article about testis by the free dictionary. Rete testis is a network of small tubules found in the part of the testicle that carries sperm. Transitions from tumor to rete testis, no evidence of teratoma and no other primary tumor solid, tubular or papillary patterns with clear cut stromal invasion slit like spaces in solid nests of tumor are common. There is also an extratesticular multicystic lesion seen abutting head and body of epididymis. Rete testes definition of rete testes by the free dictionary. It is a rare benign entity having a typical sonographic. Testis, rete testis hyperplasia nonneoplastic lesion atlas. In certain amniotesthe rat, for examplethe tubules may be open ended, running a zigzag course from the rete to the periphery and back again.
Seminiferous tubules convolutedstraight tubules rete testis in mediastinum testis efferent ducts epididymis ducts tail, body, then head ductus deferens first 4 you can identify in this slide, each one has different epithelial lining and function. Tunica albuginea is a thick connective tissue that surrounds each testis. Rete tubular ectasia is a benign condition, usually found in older men, involving numerous small, tubular cystic structures within the rete testis. Cystic dysplasia is an unusual benign congenital lesion of the rete testis often. Within a firm and thick capsule of connective tissue, the tunica albuginea, the testis contains a varying number of thin but very long seminiferous tubules which are the sites of sperm formation. Occasionally afflicted by adenomatous hyperplasia of the rete testis. Cystic dysplasia of the rete testis linkedin slideshare. Herein, we present a case of rete testis adenocarcinoma in a 36yearold chinese male. Epidemiology this condition is more common in men over the age of 55 years. Mediastinum testis medical definition merriamwebster. Scrotal swelling clinically was interpreted as testicular.
Slides 72, 73, 74 and 116 slides 72 and 73 include the testis proper and the excurrent ducts see diagram mr4. It is the counterpart of the rete ovarii in females. Rete testis simple english wikipedia, the free encyclopedia. Essentially, these tubules are simple loops which open with both their limbs into a network of fine, slitlike canals, the rete testis. Rete receives the luminal contents of seminiferous tubules and empties them into the efferent ductules. Dilation of the rete testis figure 1 is a relatively common incidental finding in aging mice. This idiopathic condition is very often bilateral and is not usually associated with testicular enlargement or renal abnormalities 15. Cystic dysplasia of the rete testis cdt represents a diagnostic challenge made easier if age, precise localisation, typical ultrasonographic features, the presence or absence of associated genitourinary malformations, as well as tumor markers are considered. The rete testis is a network of tubules in the mediastinum testis that carry sperm from the seminiferous tubules to the efferent ducts.
Guidelines on testicular cancer european association of urology. Testis, rete testis hyperplasia in a male cd1 mouse. Tubular ectasia of rete testis radiology reference article. Its function is to provide a site for fluid reabsorption. The formation of cysts in the rete testis is associated with the obstruction of the efferent ducts, which connect the rete testis with the head of the epididymis. Rete testis the rete testis connects the seminiferous tubules to the ductus efferentes. The tumor was predominantly composed of irregular small tubules and papillary structures with cuboidal or polygonal cells. The definite treatment of such a benign lesion is testissparing surgery, however in. The network of channels formed at the termination of the straight seminiferous tubules in the mediastinum testis. Jun 24, 20 adenocarcinoma of the rete testis is very rare. First 4 you can identify in this slide, each one has different epithelial lining and function. The hyperplastic epithelium generally forms papillary or knoblike projections into the lumen with no compression of surrounding tissue figure 1 and figure 2. Tubular ectasia of the rete testis is a rare, benign, cystic lesion of the testis.
Rete tubular ectasia is a disorder of the rete testis in which many benign cysts are present. The average length of such tubules is 30 centimetres 12 inches, and. If the fluid is not absorbed, the person can be infertile gallery. Profile a rete testis adenoma was diagnosed incidentally in a 6yearold quarter horse and an adenocarcinoma was reported in a 5yearold quarter horse cross. Information and translations of rete testis in the most comprehensive dictionary definitions resource on the web. At testicular hilum complex tubular architecture may resemble teratoma connects testicular tubules to 12 15 ciliated efferent ducts, which merge into a single duct, the epididymis at its head rete lined by. Rete testes synonyms, rete testes pronunciation, rete testes translation, english dictionary definition of rete testes. This condition is more common in men over the age of 55 years. Most of the time it is discovered incidentally on scrotal sonograms and may be. Case report, ultrastructural observations, and clinicopathologic correlates. These spermatozoacontaining cysts communicate with the. Rete testis medical definition merriamwebster medical.1146 647 103 1376 1441 389 1008 259 495 455 323 1503 785 144 416 408 1428 891 1541 741 1067 1492 390 1555 1134 1520 779 469 111 1163 703 35 1387 256