| Dorendorf's sign | <clinical sign> Fullness of one supraclavicular groove in aneurysm of the aortic arch. (05 Mar 2000) |
|---|---|
| double bubble sign | <radiology> Gas in stomach and duodenal bulb, duodenal atresia, annular pancreas, Ladd's bands, congenital duodenal web (or diaphragm) (12 Dec 1998) |
| double track sign | In paediatric radiology, a less common sign of congenital pyloric stenosis, when barium is caught between mucosal folds in the hypertrophied pylorus. (05 Mar 2000) |
| drawer sign | <clinical sign> In a knee examination, the forward or backward sliding of the tibia indicating laxity or tear of the anterior (forward slide) or posterior (backward slide) cruciate ligaments of the knee. Synonym: drawer test, Rocher's sign. (05 Mar 2000) |
| drooping lily sign | <radiology> Appearance of renal pelvis with duplicated collecting system, upper pole moiety obstructs, becomes hydronephrotic, most likely to be compresses lower-pole moiety and pushes it downward see also: Weigert-Meyer rule (12 Dec 1998) |
| Drummond's sign | <clinical sign> In certain cases of aortic aneurysm, a puffing sound, synchronous with cardiac systole, heard from the nostrils, when the mouth is closed. (05 Mar 2000) |
| Duchenne's sign | <clinical sign> Falling in of the epigastrium during inspiration in paralysis of the diaphragm. (05 Mar 2000) |
| Dupuytren's sign | <clinical sign> In congenital dislocation, free up and down movement of the head of the femur occurs upon intermittent traction, a crackling sensation on pressure over the bone in certain cases of sarcoma. (05 Mar 2000) |
| Duroziez' sign | A two-phase murmur over peripheral arteries, especially the femoral artery, due to rapid ebb and flow of blood during aortic insufficiency. Synonym: Duroziez' sign. (05 Mar 2000) |
| Quant's sign | <clinical sign> A T-shaped depression in the occipital bone occurring in many cases of rickets, especially in infants lying constantly in bed with pressure on the occiput. (05 Mar 2000) |
| Quenu-Muret sign | <clinical sign> In aneurysm, well-maintained collateral circulation indicated by issue of blood when the main artery of the limb is compressed and a puncture is made at the periphery. (05 Mar 2000) |
| Quincke's sign | The capillary pulse as appreciated in the finger and toenails during aortic regurgitation; ebb and flow is seen. Synonym: Quincke's sign. (05 Mar 2000) |
| inferior triangle sign | In chest radiology, lateral displacement of the diaphragmatic pleura near the diaphragm, associated with collapse of the upper lobe, usually on the right side. (05 Mar 2000) |
| objective sign | <clinical sign> A sign that is evident to the examiner. (05 Mar 2000) |
| optic sign | <microscopy> For uniaxial materials, by definition, the sign is positive if the value epsilon minus omega is positive, and negative if epsilon - omega is negative. For biaxial materials, the sign is positive if gamma is the acute bisectrix, and negative if alpha is the acute bisectrix, or positive if gamma - beta greater than beta - alpha and negative if gamma - beta less than beta - alpha (05 Aug 1998) |