| 释义 |
Bird sign Bird sign (bird), the presence of a zone of dullness on percussion with absence of respiratory signs in hydatid cyst of the lung.An obsolete term for a region of dullness to percussion and decreased breath sounds in the area overlying hydatid cysts of the lungs, apparently described by L.D. Bird, of Melbourne, in whose patient Echinococcus was accompanied by phthisis—tuberculosisBird, Samuel D., Australian physician, 1833-1904. Bird sign - the presence of a zone of dullness on percussion with absence of respiratory signs in hydatid cyst of the lung.Bird sign (bĭrd sīn) The presence of a zone of dullness on percussion with absence of respiratory signs in hydatid cyst of the lung. |