| hamman sign | <radiology> Crackles heard in left lateral decubitus position, indicates (+) pneumomediastinum (12 Dec 1998) |
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| Hamman's disease | <syndrome> Spontaneous mediastinal emphysema, resulting from rupture of alveoli. Synonym: Hamman's disease. (05 Mar 2000) |
| Hamman's murmur | A crunching precordial sound synchronous with the heart beat; heard in mediastinal emphysema. (05 Mar 2000) |
| Hamman's sign | <clinical sign> A crunching, rasping sound, synchronous with heart beat, heard over the precordium and sometimes at a distance from the chest in mediastinal emphysema. (05 Mar 2000) |
| Hamman's syndrome | <syndrome> Spontaneous mediastinal emphysema, resulting from rupture of alveoli. Synonym: Hamman's disease. (05 Mar 2000) |
| Hamman, Louis | <person> U.S. Physician, 1877-1946. See: Hamman's disease, Hamman's murmur, Hamman's sign, Hamman's syndrome, Hamman-Rich syndrome. (05 Mar 2000) |
| hamman-rich syndrome | <radiology> Autoimmune, rarely seen in kids Findings: ramifying, streaky densities (interstitial fibrosis), middle and lower lung fields, with or without superimposed patchy infiltrates (12 Dec 1998) |