1 At age 65, one out of three people has a hearing loss. 2  60 percent of the people with hearing loss are either in the work force or in educational settings.
The 3 main causes of pneumomediastinum are. 1  Alveolar rupture with dissection of air into the mediastinum. 2  Esophageal perforation. 3  Esophageal or bowel rupture with dissection of air from the neck or the abdomen into the mediastinum.
an acute inflammation of the lungs, often caused by inhaled pneumococci of the species Streptococcus pneumoniae. The alveoli and bronchioles of the lungs become plugged with a fibrous exudate. Pneumonia may also be caused by other bacteria, as well as by viruses, rickettsiae, and fungi. Kinds of pneumonia are aspiration pneumonia, bronchopneumonia, eosinophilic pneumonia, interstitial pneumonia, lobar pneumonia, mycoplasma pneumonia, and viral pneumonia.