Superficial to the gland is the sternum. Lying deep to the thymus are the great vessels and the cranial part of the pericardium. The two lobes of the gland differ in size, and in many individuals the right lobe overlaps the left lobe. The thymus is about 5 cm long, 4 cm wide, and 6 mm thick.
Signs and Symptoms of Emphysema Symptoms of emphysema vary from mild to severe and include shortness of breath (dyspnea), cough, and difficulty breathing upon exertion (e.g., exercise). Emphysema is a chronic (long lasting), progressive condition, which means the symptoms usually worsen over time.
Pulmonary Embolism. The signs and symptoms of PE may be subtle and may include the following complaints, listed in order of frequency: 1  Sudden shortness of breath. 2  Chest pain-sharp, stabbing; may get worse with deep breath. 3  Rapid heart rate. 4  Unexplained cough, sometimes with bloody mucus. 5  Apprehension, anxiety. 6  Sweats.