Diseases of the gallbladder and the biliary tract are common, and in most cases, painful conditions frequently require surgery and may be life-threatening.
Cushing's syndrome is a cluster of clinical abnormalities caused by excessive levels of adrenocortical hormones (particularly cortisol) or related corticosteroids and, to a lesser extent, androgens and aldosterone.
Pneumothorax is one of the disorders of the chest and lower respiratory tract. It occurs when the parietal or visceral pleura is breached and the pleural space is exposed to positive atmospheric pressure.