25 Middle Mediastinal Lesions

CLINICAL IMAGAGINGAN ATLAS OF DIFFERENTIAL DAIGNOSIS

EISENBERG

DR. Muhammad Bin Zulfiqar PGR-FCPS III SIMS/SHL

• Fig C 25-1 Mediastinal lymphadenopathy in sarcoidosis. (A) Frontal and (B) lateral views of the chest demonstrate enlarged mediastinal lymph nodes (arrows).

• Fig C 25-2 Aneurysm of the left subclavian artery. Left superior mediastinal widening in an elderly woman without chest symptoms.43

• Fig C 25-3 Bronchogenic cyst. (A) Frontal and (B) lateral views of the chest demonstrate a smoothwalled, spherical mediastinal mass (arrows) projecting into the left lung and left hilum.

• Fig C 25-4 Bronchogenic cyst. (A) Frontal and (B) lateral views of the chest demonstrate a huge middle mediastinal mass (arrows, B) protruding to the right and filling much of the lower half of the right hemithorax. The patient was asymptomatic

• Fig C 25-5 Aortic transection. Frontal chest radiograph taken immediately after trauma demonstrates mediastinal widening, obscuration of the aorta, deviation of the trachea to the right, and downward displacement of the left main-stem bronchus.51

• Fig C 25-6 Acute mediastinitis due to rupture of the esophagus. Plain radiograph demonstrates linear lucent shadows (arrows) that represent localized mediastinal emphysema and correspond to the fascial planes of the mediastinal and diaphragmatic pleurae in the region of the lower esophagus.52

• Fig C 25-7 Chronic sclerosing mediastinitis. Venogram shows smooth tapering of the lower portion of the superior vena cava. This 38-year-old woman had varicosities over her upper abdomen and lower chest.52

• Fig C 25-8 Congenital intrapericardial hernia. (A) Frontal and (B) lateral views in an asymptomatic elderly man show loops of bowel in the chest conforming to the left pericardial border.53