With a mean diameter of around 2700 km and a mass of 214080 Â± 520 x 1017 kg, Triton is the largest of Neptuneâs moons, and the only one large enough to achieve hydrostatic equilibrium (i.e. is spherical in shape).
Some conditions causing restrictive lung disease are: 1  Interstitial lung disease, such as idiopathic pulmonary fibrosis. 2  Sarcoidosis, an autoimmune disease. 3  Obesity, including obesity hypoventilation syndrome. 4  Scoliosis. 5  Neuromuscular disease, such as muscular dystrophy or amyotrophic lateral sclerosis (ALS).
The conditions that are most likely to cause these signs are diseases of the airways and lung, abnormalities of the heart and blood vessels, and accumulation of air in the chest cavity (pleural space). Examples of such diseases include: 1  Heart failure. 2  Lung cancer. 3  Lung infection (fungal, bacterial, parasites).