Orchiopexy
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Orchiopexy
Orchiopexy (or orchidopexy) is a surgery to move and/or permanently fix a testicle into the scrotum. While orchiopexy typically describes the operation to surgically correct an undescended testicle, it is also used to resolve testicular torsion. Indications Undescended testicle Undescended testicles affect 1% of males and are 10% bilateral. The cause is unknown, with a small percentage associated with developmental abnormalities or chromosomal aberrations. Early orchiopexy reduces the risks for cancer and sterility in males with cryptorchidism, or undescended testes. Cryptorchidism is definitively diagnosed after 1 year of age, as testicular descent may occur after birth. Surgical placement into the scrotum is recommended by 18 months to decrease the likelihood of testicular cancer, testicular atrophy, and sterility. Cryptorchidism is associated with tubular atrophy and sterility. In addition, cryptorchid testes carry a three to five times higher risk for testicular cancer (ge ...
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Cryptorchidism
Cryptorchidism, also known as undescended testis, is the failure of one or both testes to descend into the scrotum. The word is from Greek () 'hidden' and () 'testicle'. It is the most common birth defect of the male genital tract. About 3% of full-term and 30% of premature infant boys are born with at least one undescended testis. However, about 80% of cryptorchid testes descend by the first year of life (the majority within three months), making the true incidence of cryptorchidism around 1% overall. Cryptorchidism may develop after infancy, sometimes as late as young adulthood, but that is exceptional. Cryptorchidism is distinct from monorchism, the condition of having only one testicle. Though the condition may occur on one or both sides, it more commonly affects the right testis. A testis absent from the normal scrotal position may be: # Anywhere along the "path of descent" from high in the posterior (retroperitoneal) abdomen, just below the kidney, to the inguinal ring ...
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Surgery
Surgery ''cheirourgikē'' (composed of χείρ, "hand", and ἔργον, "work"), via la, chirurgiae, meaning "hand work". is a medical specialty that uses operative manual and instrumental techniques on a person to investigate or treat a pathological condition such as a disease or injury, to help improve bodily function, appearance, or to repair unwanted ruptured areas. The act of performing surgery may be called a surgical procedure, operation, or simply "surgery". In this context, the verb "operate" means to perform surgery. The adjective surgical means pertaining to surgery; e.g. surgical instruments or surgical nurse. The person or subject on which the surgery is performed can be a person or an animal. A surgeon is a person who practices surgery and a surgeon's assistant is a person who practices surgical assistance. A surgical team is made up of the surgeon, the surgeon's assistant, an anaesthetist, a circulating nurse and a surgical technologist. Surgery usually spa ...
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Spermatic Arteries
The testicular artery (the male gonadal artery, also called the internal spermatic arteries in older texts) is a branch of the abdominal aorta that supplies blood to the testis. It is a paired artery, with one for each of the testes. It is the male equivalent of the ovarian artery. Because the testis is found in a different location than that of its female equivalent, it has a different course than the ovarian artery. They are two slender vessels of considerable length, and arise from the front of the aorta a little below the renal arteries. Each passes obliquely downward and lateralward behind the peritoneum, resting on the Psoas major, the right lying in front of the inferior vena cava and behind the middle colic and ileocolic arteries and the terminal part of the ileum, the left behind the left colic and sigmoid arteries and the iliac colon. Each crosses obliquely over the ureter and the lower part of the external iliac artery to reach the abdominal inguinal ring, through w ...
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John K
John K may refer to: *John Kricfalusi Michael John Kricfalusi ( ; born September 9, 1955), known professionally as John K., is a Canadian illustrator, blogger, voice actor and former animator. He is the creator of the animated television series ''The Ren & Stimpy Show'', which was ..., Canadian animator and voice actor * John K (musician), American singer See also * John Kay (other) * John Kaye (other) * {{hndis ...
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Joseph Lister
Joseph Lister, 1st Baron Lister, (5 April 182710 February 1912) was a British surgeon, medical scientist, experimental pathologist and a pioneer of antiseptic surgery and preventative medicine. Joseph Lister revolutionised the craft of surgery in the same manner that John Hunter revolutionised the science of surgery. From a technical viewpoint, Lister was not an exceptional surgeon, but his research into bacteriology and infection in wounds raised his operative technique to a new plane where his observations, deductions and practices revolutionised surgery throughout the world. Lister's contribution to the fields of physiology, pathology and surgery were four-fold. He promoted the principle of antiseptic surgical care and wound management while working as a surgeon at the Glasgow Royal Infirmary by successfully introducing phenol (then known as carbolic acid) to sterilise surgical instruments, the patient's skin, sutures, the surgeon's hands and the ward. Secondly he ...
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Thomas Annandale
Thomas Annandale, FRCS FRSE (1838–1907) was a Scottish surgeon who conducted the first repair of the meniscus and the first successful removal of an acoustic neuroma, and introduced the pre-peritoneal approach to inguinal hernia repair. He served as Regius Professor of Clinical Surgery at the University of Edinburgh. His collection of anatomical specimens was donated to the Surgeon's Hall in Edinburgh and is now known as the Thomas Annandale Collection. Life Born in Newcastle-upon-Tyne on 2 February 1838, he was third son of Thomas Annandale, surgeon, by his wife Elizabeth Johnston. He was educated at Bruce's Academy in Newcastle, and then apprenticed to his father. Continuing medical studies at Newcastle Infirmary, he matriculated in 1856 at Edinburgh University Medical School, and graduated M.D. in 1860 with the highest honours, receiving the gold medal for his thesis ''On the Injuries and Diseases of the Hip Joint''. Annandale was appointed in 1860 house-surgeon to ...
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John Hunter (surgeon)
John Hunter (13 February 1728 – 16 October 1793) was a British surgeon, one of the most distinguished scientists and surgeons of his day. He was an early advocate of careful observation and scientific method in medicine. He was a teacher of, and collaborator with, Edward Jenner, pioneer of the smallpox vaccine. He is alleged to have paid for the stolen body of Charles Byrne, and proceeded to study and exhibit it against the deceased's explicit wishes. His wife, Anne Hunter (''née'' Home), was a poet, some of whose poems were set to music by Joseph Haydn. He learned anatomy by assisting his elder brother William with dissections in William's anatomy school in Central London, starting in 1748, and quickly became an expert in anatomy. He spent some years as an Army surgeon, worked with the dentist James Spence conducting tooth transplants, and in 1764 set up his own anatomy school in London. He built up a collection of living animals whose skeletons and other organs he prepa ...
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Castration
Castration is any action, surgical, chemical, or otherwise, by which an individual loses use of the testicles: the male gonad. Surgical castration is bilateral orchiectomy (excision of both testicles), while chemical castration uses pharmaceutical drugs to deactivate the testes. Castration causes sterilization (preventing the castrated person or animal from reproducing); it also greatly reduces the production of hormones, such as testosterone and estrogen. Surgical castration in animals is often called neutering. The term ''castration'' is sometimes also used to refer to the removal of the ovaries in the female, otherwise known as an oophorectomy, or the removal of internal testes, otherwise known as gonadectomy. The equivalent of castration for female animals is spaying. Estrogen levels drop following oophorectomy, and long-term effects of the reduction of sex hormones are significant throughout the body. Castration of animals is intended to favor a desired development of ...
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Truss (medicine)
In medicine, a truss is a kind of surgical appliance, particularly one used for hernia patients. A truss provides support for the herniated area, using a pad and belt arrangement to hold it in the correct position, just when it is put on before moving from bed. Of historical interest, a variety of trusses are listed in the Snowden & Brother's catalog of the American Civil War era. Early versions of the hernia truss were daunting contraptions made from leather and steel with metal springs. The 19th century Eggleston's Truss from Chicago was described as follows: "Eggleston's Truss has a pad different from all others. It is cup-shaped, with a self-adjusting ball in the centre, and adapts itself to all positions of the body, while the ball in the cup presses back the intestines just as a person does with the finger. With light pressure the hernia is held securely day and night, and a radical cure is certain. It is easy, durable and cheap." Later developments resulted in the Cluthe ...
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Tunica Albuginea Of Testis
The tunica albuginea is the fibrous tissue covering of the testis. It is a dense blue-grey membrane, composed of bundles of white fibrous connective tissue, from which it derives its name '' albuginea'', which interlace in every direction. Structure The tunica albuginea is a layer of fibrous tissue capsule covering the testis. It is covered by the tunica vaginalis, except at the points of attachment of the epididymis to the testis, and along its posterior border, where the spermatic vessels enter the gland. It is thicker than the tunica albuginea of the ovary. The tunica albuginea is applied to the tunica vasculosa over the glandular substance of the testis, and, at its posterior border, is reflected into the interior of the gland, forming an incomplete vertical septum, called the mediastinum testis (corpus Highmori). Additional images File:Gray1145.png, Transverse section through the left side of the scrotum and the left testis. File:Gray1114.png, Section of a genital cor ...
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Vas Deferens
The vas deferens or ductus deferens is part of the male reproductive system of many vertebrates. The ducts transport sperm from the epididymis to the ejaculatory ducts in anticipation of ejaculation. The vas deferens is a partially coiled tube which exits the abdominal cavity through the inguinal canal. Etymology ''Vas deferens'' is Latin, meaning "carrying-away vessel"; the plural version is ''vasa deferentia''. ''Ductus deferens'' is also Latin, meaning "carrying-away duct"; the plural version is ''ducti deferentes''. Structure There are two vasa deferentia, connecting the left and right epididymis with the seminal vesicles to form the ejaculatory duct in order to move sperm. The (human) vas deferens measures 30–35 cm in length, and 2–3 mm in diameter. The vas deferens is continuous proximally with the tail of the epididymis. The vas deferens exhibits a tortuous, convoluted initial/proximal section (which measures 2–3 cm in length). Distally, it forms ...
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Cremasteric Artery
The cremasteric artery (external spermatic artery) is a branch of the inferior epigastric artery which accompanies the spermatic cord to supply the cremaster muscle as well as other coverings of the spermatic cord in the male (whereas in the female, the cremasteric artery is very small and accompanies the round ligament). Anatomy Course The cremasteric artery enters the inguinal canal at the deep inguinal ring to traverse the length of the spermatic cord alongside the testicular artery. Within the spermatic cord, the cremasteric artery travels within the external spermatic fascia, but outside the internal spermatic fascia. Anastomoses The cremasteric artery participates in the formation of a rich arterial anastomotic network within in the scrotum at the tail of the epidydimis with the testicular artery The testicular artery (the male gonadal artery, also called the internal spermatic arteries in older texts) is a branch of the abdominal aorta that supplies blood to the ...
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