| tubal pregnancy | <obstetrics> An ectopic pregnancy that involves the development of the embryo within the fallopian tube. This can result in a surgical emergency when the developing embryo reaches a critical size. (27 Sep 1997) |
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| tubal prominence | A ridge in the naso-pharyngeal wall posterior to the opening of the auditory (eustachian) tube, caused by the projection of the cartilaginous portion of this tube. Synonym: eustachian cushion, tubal prominence. (05 Mar 2000) |
| tubal tonsil | A collection of lymphoid nodules near the pharyngeal opening of the auditory tube. Synonym: tonsilla tubaria, eustachian tonsil, Gerlach's tonsil. (05 Mar 2000) |
| adynamic ileus simulating bowel obstruction | <radiology> Chronic idiopathic intestinal pseudo-obstrction, pelvic surgery, urinary retention, pancreatitis, acute intermittent porphyria, ceroidosis, neonatal adynamic ileus (12 Dec 1998) |
| airway obstruction | Any hindrance to the passage of air into and out of the lungs. (12 Dec 1998) |
| bile duct obstruction, extrahepatic | Impairment of bile flow through the hepatic, cystic, or common bile ducts or vater's ampulla. This is sometimes called surgical jaundice. (12 Dec 1998) |
| biliary obstruction | <gastroenterology, surgery> A blockage of the bile ducts can occur by a stone, tumour, pancreas (pancreatic tumour or swelling), bile duct inflammation, bile duct cysts, trauma, bile duct stricture or enlarged lymph nodes in the area. When bile duct obstruction occurs, bile accumulates in the liver and jaundice develops due to the accumulation of bilirubin in the bloodstream. (27 Sep 1997) |
| bladder outlet obstruction | Any condition that results in the failure of urine to pass from the bladder and out the urethra. One of the most common causes of this in males is benign prostate enlargement. (27 Sep 1997) |
| bowel obstruction | A blockage of the bowel lumen prohibiting the passage of material. Common symptoms include constipation, abdominal swelling and abdominal pain. Treatment includes intravenous fluids, rest, nasogastric suction and surgery in select cases. (27 Sep 1997) |
| gastric outlet obstruction | <paediatrics, surgery> A congenital disorder in which the pylorus is thickened causing obstruction of the gastric outlet (to the duodenum). More common in males, pyloric stenosis. Symptoms of projectile vomiting begin several weeks after birth. Incidence: approximately 1 in 4,000 live births. (27 Sep 1997) |
| gastrojejunal loop obstruction syndrome | <syndrome> A complication of gastrojejunostomy, caused by acute or chronic obstruction of the afferent loop due to hernia, intussusception, kinking, volvulus, etc. It is characterised by pain and vomiting of bile-stained fluid and includes acute afferent loop obstruction and bilious vomiting. (12 Dec 1998) |
| ventricular outflow obstruction | Occlusion of the ventricular outflow or inflow tract on either side of the heart. It may result from a congenital defect or predisposing heart disease, or as a complication of surgery or tumours of the heart or its vessels. (12 Dec 1998) |
| renal artery obstruction | Narrowing or occlusion of the renal arteries. It is due usually to atherosclerosis, fibromuscular dysplasia, thrombosis, embolism, or external pressure. It may result in renovascular hypertension. (12 Dec 1998) |
| closed-loop obstruction | Obstruction of a segment of intestine by rotation on a fixed point (volvulus); frequently impairs venous circulation of the affected bowel segment, resulting in strangulation and gangrene; the segment of intestine contained in a hernia can also become a closed-loop obstruction when sufficient compression occurs at the neck of the sac. (05 Mar 2000) |
| colonic pseudo-obstruction | Functional obstruction of the colon. (12 Dec 1998) |