| AH | abdominal hysterectomy; absorptive hypercalciuria; accidental hypothermia; acetohexamide; acid hydro... |
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| ALVAD | abdominal left ventricular assist device |
| AO | abdominal aorta; achievement orientation; acid output; acridine orange; ankle orthosis; anodal openi... |
| A/P | abdominal/perineal; antepartum; ascites/plasma [ratio] |
| AT | abdominal thrusts; achievement test; Achilles tendon; Achard-Thiers [syndrome]; adaptive thermogenes... |
| abdominal migraine | Migraine in children accompanied by paroxysmal abdominal pain. This must be distinguished from similar symptoms requiring surgical attention. (05 Mar 2000) |
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| abdominal muscle deficiency syndrome | <syndrome> Congenital absence (partial or complete) of abdominal muscles, in which the outline of the intestines is visible through the protruding abdominal wall; in males, genitourinary anomalies (urinary tract dilation and cryptorchidism) are also found; genetics unclear. (05 Mar 2000) |
| abdominal muscles | A large group of muscles in the front of the abdomen that assists in the regular breathing movement and supports the muscles of the spine while lifting and keeping abdominal organs such as the intestines in place. (12 Dec 1998) |
| abdominal myomectomy | Removal of a myoma of the uterus through an abdominal incision. Synonym: celiomyomectomy, laparomyomectomy. (05 Mar 2000) |
| abdominal nephrectomy | Removal of the kidney by an incision through the anterior abdominal wall; performed by either a transperitoneal or extraperitoneal technique. (05 Mar 2000) |
| abdominal ostium of uterine tube | The fimbriated or ovarian extremity of an oviduct. Synonym: ostium abdominale tubae uterinae. (05 Mar 2000) |
| abdominal pain | Sensation of discomfort, distress, or agony in the abdominal region. (12 Dec 1998) |
| abdominal panniculectomy | <procedure, surgery> A procedure to remove fatty tissue and excess skin from the lower to middle portions of the abdomen. This procedure is indicated in some individual's who have lost considerable weight resulting in loose hanging folds of skin in the abdominal area. Recovery is in 2-4 days. (11 Mar 1998) |
| abdominal part of aorta | <anatomy> The largest arterial conduit below the diaphragm. This term refers to the portion of the aorta below the diaphragm to the bifurcation into the right and left common iliac arteries. It supplies blood to the abdominal viscera, pelvic organs and lower extremities. (20 Jun 2000) |
| abdominal part of oesophagus | The part of the oesophagus inferior to the diaphragm. See: oesophagus. Synonym: pars abdominalis oesophagi. (05 Mar 2000) |
| abdominal part of thoracic duct | The part of the thoracic duct between the cisterna chyli and the aortic hiatus of the diaphragm. Synonym: pars abdominalis ductus thoracici. (05 Mar 2000) |
| abdominal part of ureter | The part of the ureter between the renal pelvis and the brim of the pelvis. Synonym: pars abdominalis ureteris. (05 Mar 2000) |
| abdominal pool | The volume of blood within the abdomen. (05 Mar 2000) |
| abdominal pregnancy | The implantation and development of the ovum in the peritoneal cavity, usually secondary to an early rupture of a tubal pregnancy; very rarely, primary implantation may occur in the peritoneal cavity. Synonym: abdominocyesis, intraperitoneal pregnancy. (05 Mar 2000) |
| abdominal pressure | Pressure surrounding the bladder; estimated from rectal, gastric, or intraperitoneal pressure. (05 Mar 2000) |