ETA SA Manufacture HorlogÃ¨re Suisse designs and manufactures quartz watches and both hand-wound and automatic-winding mechanical Ã©bauches and movements. Commonly referred to as ETA, the company is headquartered in Grenchen, Switzerland and is a wholly owned subsidiary of The Swatch Group Ltd. Though ETA was founded by Eterna in 1856 some part of its production line can be traced back to the 1793 founding of Fabriques dâHorlogerie de Fontainemelon by David Benguerel, Isaac Benguerel ...
Enlarged hilar and mediastinal lymph nodes in chronic obstructive pulmonary disease. Kirchner J(1), Kirchner EM, Goltz JP, Obermann A, Kickuth R. Author information: (1)Department of Diagnostic and Interventional Radiology, Allgemeines Krankenhaus Hagen, Germany.
When there is a mediastinal mass and you still can see the hilar vessels through this mass, then you know the mass does not arise from the hilum. This is known as the hilum overlay sign. Because of the geometry of the mediastinum most of these masses will be located in the anterior mediastinum.