| KS | Kallmann syndrome; Kaposi sarcoma; Kartagener syndrome; Kawasaki syndrome; keratan sulfate; ketoster... |
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| RS | radioscaphoid; random sample; rating schedule; Raynaud syndrome; recipient's serum; rectal sinus; re... |
| AAS | Aarskog-Scott [syndrome]; acid aspiration syndrome; alcoholic abstinence syndrome; American Academy ... |
| ABS | abdominal surgery; acute brain syndrome; Adaptive Behavior Scale; admitting blood sugar; adult bovin... |
| BBS | Barolet-Biedl syndrome; bashful bladder syndrome; benign breast syndrome; bilateral breath sounds; b... |
| oral ulcer | A loss of mucous substance of the mouth showing local excavation of the surface, resulting from the sloughing of inflammatory necrotic tissue. It is the result of a variety of causes, e.g., denture irritation, aphthous stomatitis (stomatitis, aphthous), noma, necrotizing gingivitis (gingivitis, necrotizing, ulcerative), toothbrushing, and various irritants. (12 Dec 1998) |
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| Oriental ulcer | The lesion occurring in cutaneous leishmaniasis. Synonym: Oriental sore. (05 Mar 2000) |
| tanner's ulcer | An ulcer produced by exposure to chromium compounds. Synonym: tanner's ulcer. (05 Mar 2000) |
| elusive ulcer | A focal and often multiple lesion involving all layers of the bladder wall in chronic interstitial cystitis; the surface epithelium is destroyed by inflammation and the initially pale lesion cracks and bleeds with distention of the bladder. Synonym: elusive ulcer, Fenwick-Hunner ulcer. (05 Mar 2000) |
| transparent ulcer of the cornea | An obsolete term for an ulcer of the cornea, occurring usually in children, that heals without opacity. (05 Mar 2000) |
| trophic ulcer | Ulcer resulting from cutaneous sensory denervation. See: perforating ulcer of foot. Synonym: trophic gangrene. (05 Mar 2000) |
| tropical ulcer | The lesion occurring in cutaneous leishmaniasis, tropical phagedenic ulceration caused by a variety of microorganisms, including mycobacteria; common in northern Nigeria. Synonym: tropical sore. (05 Mar 2000) |
| ulcer | <dermatology> A local defect or excavation, of the surface of an organ or tissue, which is produced by the sloughing of inflammatory necrotic tissue. Origin: L. Ulcus, Gr. Helkosis (18 Nov 1997) |
| ulcer, duodenal | An ulcer (a hole in the lining) of the duodenum (the first portion of the small intestine). Ulcer formation is related to h. Pyloridus bacteria in the stomach, anti-inflammatory medications, and smoking cigarettes. Ulcer pain may not correlate with the presence or severity of ulceration. Diagnosis is made with barium X-ray or endoscopy. Complications of ulcers include bleeding and perforation. Treatment involves antibiotics to eradicate h. Pyloridus, eliminating risk factors, and preventing complications. (12 Dec 1998) |
| ulcer, gastric | A hole in the lining of the stomach corroded by the acidic digestive juices which are secreted by the stomach cells. Ulcer formation is related to h. Pyloridus bacteria in the stomach, anti-inflammatory medications, and smoking cigarettes. Ulcer pain may not correlate with the presence or severity of ulceration. Diagnosis is made with barium X-ray or endoscopy. Complications of ulcers include bleeding, perforation, and blockage of the stomach (gastric obstruction). (12 Dec 1998) |
| ulcer, oesophageal | A hole in the lining of the oesophagus (tube-like organ leading from the throat to the stomach) corroded by the acidic digestive juices secreted by the stomach cells. Ulcer formation is related to h. Pyloridus bacteria in the stomach, anti-inflammatory medications, and smoking cigarettes. Ulcer pain may not correlate with the presence or severity of ulceration. Diagnosis is made with barium X-ray or endoscopy. Complications of ulcers include bleeding and perforation. Treatment involves antibiotics to eradicate h. Pyloridus, eliminating risk factors, and preventing complications. (12 Dec 1998) |
| ulcer, peptic | A peptic ulcer is a hole in the lining of the stomach, duodenum, or oesophagus. A peptic ulcer of the stomach is called a gastric ulcer, an ulcer of the duodenum is a duodenal ulcer, and a peptic ulcer of the oesophagus is an oesophageal ulcer. A peptic ulcer occurs when the lining of these organs is corroded by the acidic digestive juices which are secreted by the stomach cells. Peptic ulcer disease is common, affecting millions of americans yearly. The medical cost of treating peptic ulcer and its complications runs in the billions of dollars annually in the u.s. Recent medical advances have increased our understanding of ulcer formation. Improved and expanded treatment options are now available. (12 Dec 1998) |
| fascicular ulcer | A localised vascularization of the cornea to the site of a corneal ulcer. (05 Mar 2000) |
| undermining ulcer | A chronic cutaneous ulcer with overhanging margins; due to haemolytic streptococci or other bacteria. (05 Mar 2000) |
| Zambesi ulcer | An ulcer, usually single, about 3 cm in diameter, on the foot or leg, occurring in laborers in the Zambesi Delta; it has a sloughing surface, but does not spread and produces no constitutional symptoms or glandular enlargement; it is associated with the presence of a spirillum and a large fusiform bacillus; one attack seems to confer a partial immunity. (05 Mar 2000) |