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.
The symptoms of pulmonary embolism may include: 1  Shortness of breath that may occur suddenly. 2  Sudden, sharp chest pain that may become worse with deep breathing or coughing. 3  Rapid heart rate. 4  Rapid breathing. 5  Sweating. 6  Anxiety. 7  Coughing up blood or pink, foamy mucus. 8  Fainting. 9  Heart palpitations. 10  Signs of shock.