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Health Illustrated Encyclopedia Multimedia Ulcerative colitis 10/08/2012
Inflammatory bowel disease - ulcerative colitis; IBD - ulcerative colitis Causes, incidence, and risk factors: The cause of ulcerative colitis is unknown. People with this condition have problems with the immune system, but it is not clear whether immune problems cause this illness.
Health Illustrated Encyclopedia Multimedia Ulnar nerve dysfunction 08/28/2012
Neuropathy - ulnar nerve; Ulnar nerve palsy Causes, incidence, and risk factors: Damage to one nerve group, such as the ulnar nerve, is called a mononeuropathy. Mononeuropathy means there is nerve damage to a single nerve. Both local and body-wide disorders may damage just one nerve.
Health Illustrated Encyclopedia Multimedia Umbilical hernia 08/02/2011
An umbilical hernia is an outward bulging (protrusion) of the abdominal lining or part of the abdominal organ(s) through the area around the belly button. Causes, incidence, and risk factors: An umbilical hernia in an infant occurs when the muscle through which blood vessels pass to feed the developing fetus doesn't close completely. Umbilical hernias are common in infants. They occur slightly more often in African Americans. Most umbilical hernias are not related to disease.
Health Illustrated Encyclopedia Multimedia Undescended testicle 09/24/2012
Cryptorchidism; Empty scrotum - undescended testes; Scrotum - empty (undescended testes); Monorchism; Vanished testes - undescended; Retractile testes Causes, incidence, and risk factors: Most of the time, children's testicles descend by the time they are 9 months old. Undescended testicles are fairly common in infants who are born early (premature infants).
Health Illustrated Encyclopedia Multimedia Unilateral hydronephrosis 04/16/2012
Hydronephrosis; Chronic hydronephrosis; Acute hydronephrosis; Urinary obstruction Causes, incidence, and risk factors: Hydronephrosis (kidney swelling) is a condition that occurs with a disease. It is not a disease itself. Conditions that are often associated with unilateral hydronephrosis include: Acute unilateral obstructive uropathy Blockage of a ureter due to scarring, tumor, urinary stones Chronic unilateral obstructive uropathy Vesicoureteric reflux (backflow of urine from bladder to kidney) Nephrolithiasis (kidney stones) Hydronephrosis that occurs without a known cause during pregnancy Unilateral hydronephrosis occurs in approximately 1 in 100 people.
Health Illustrated Encyclopedia Multimedia Unstable angina 06/18/2012
Accelerating angina; New-onset angina; Angina - unstable; Progressive angina Causes, incidence, and risk factors: Coronary artery disease due to atherosclerosis is by far the most common cause of unstable angina.
Health Illustrated Encyclopedia Multimedia UPJ obstruction 05/07/2013
Ureteropelvic junction obstruction; UP junction obstruction; Obstruction of the ureteropelvic junction Causes, incidence, and risk factors: UPJ obstruction mostly occurs in children. It often happens when a baby is still growing in the womb.
Health Illustrated Encyclopedia Multimedia Ureterocele 09/24/2012
A ureterocele is a swelling at the bottom of one of the tubes (ureters) that carry urine from the kidney to the bladder. The swollen area can block urine flow. A ureterocele is a birth defect. Causes, incidence, and risk factors: A ureterocele occurs in the lower part of the ureter, where the tube enters the bladder. The swollen area prevents urine from moving freely into the bladder. The urine collects in the ureter and stretches its walls, blowing it up like a water balloon.
Health Illustrated Encyclopedia Multimedia Urethral stricture 09/24/2012
Urethral stricture is an abnormal narrowing of the tube that carries urine out of the body from the bladder (urethra). Causes, incidence, and risk factors: Urethral stricture may be caused by inflammation or scar tissue from surgery, disease, or injury. It may also be caused by pressure from a growing tumor near the urethra, although this is rare. Other risks include: Sexually transmitted infection (STI) Procedures that place a tube into the urethra (such as a catheter or cystoscope) Benign prostatic hyperplasia (BPH) Injury to the pelvic area Repeated urethritis Strictures that are present at birth (congenital) are rare.
Health Illustrated Encyclopedia Multimedia Urethritis 09/24/2012
Urethral syndrome; NGU; Non-gonococcal urethritis Causes, incidence, and risk factors: Urethritis may be caused by bacteria or a virus. The same bacteria that cause urinary tract infections ( E. coli ) and some sexually transmitted diseases ( chlamydia , gonorrhea ) can lead to urethritis. Viral causes of urethritis include herpes simplex virus and cytomegalovirus.
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