The most common symptom of<unk>  is difficulty breathing, but may include other symptoms such as coughing up blood (classically seen as pink, frothy sputum), excessive sweating, anxiety, and pale skin. Shortness of breath can manifest as orthopnea (inability to lie down flat due to breathlessness) and/or paroxysmal nocturnal dyspnea (episodes of severe sudden breathlessness at night). These are common presenting symptoms of chronic<unk>  due to left ventricular failure. The development of<unk>  may be associated with symptoms and signs of "fluid overload"; this is a non-specific term to describe the manifestations of right ventricular failure on the rest of the body and includes<unk> ripheral<unk>  (swelling of the legs, in general, of the "pitting" variety, wherein the skin is slow to return to normal when pressed upon), raised jugular venous pressure and hepatomegaly, where the liver is enlarged and may be tender or even pulsatile. Other signs include end-inspiratory crackles (sounds heard at the end of a deep breath) on auscultation and the presence of a third heart sound.
Pulmonary edema
Pneumonia
Pleurisy
Emphysema
Hydrothorax
Pleural effusion
Pulmonary infiltrate
Atelectasis