CASE A A 48-year-old asymptomatic man with a strong family history of cerebral microhemorrhage. GRE, gradient refocused echo. Open full size image CASE B An 87-year-old woman with a history of hyperlipidemia, hypertension, and heart disease. GRE, gradient refocused echo.…
CASE A A 64-year-old man with a history of amyloid angiopathy–related hemorrhages. Open full size image CASE B A 64-year-old man with a history of renal cell carcinoma, difficulty walking, and diplopia. Open full size image CASE C A 25-year-old…
CASE A A 66-year-old man presenting with sudden-onset left-sided weakness. CT, computed tomography; CTA, CT angiogram. Open full size image CASE B A 77-year-old man with a history of lung cancer. CT, computed tomography. Open full size image CASE C…
The chest wall is a complex anatomic structure composed of muscles, bones, joints, and soft tissues that make up the area of the body between the neck and the abdomen. Pathologic processes that may involve the chest wall include congenital…
Abnormalities of Diaphragmatic Motion: Diaphragmatic Paralysis, Weakness, and Eventration Etiology, Prevalence, and Epidemiology The diaphragm is the primary muscle of ventilation, and dysfunction of the diaphragm is an underrecognized cause of dyspnea. Dysfunction of the diaphragm can be classified as…
Mediastinal masses are relatively uncommon and include a wide variety of abnormalities of neoplastic, congenital, vascular, and lymphatic etiology that most radiologists encounter infrequently. Imaging plays a critical role in the identification and evaluation of mediastinal lesions, facilitating the formulation…
Mediastinitis refers to a focal or diffuse inflammation of the tissues located in the mediastinum. The mediastinum lies between the right and left pleural cavities and extends from the thoracic inlet to the diaphragm. Mediastinitis can be classified into acute…
Etiology, Prevalence, and Epidemiology Pneumomediastinum, also known as mediastinal emphysema, refers to the presence of free air or other gas in the mediastinal space. Pathologically, the major sources of entry of air to the mediastinum are (1) through the skin…
The pleura may be affected by primary neoplasms or become involved by secondary spread of intrathoracic or extrathoracic tumors. Primary pleural tumors account for approximately 10% of all pleural neoplasms, the most common of which include malignant pleural mesothelioma (MPM)…
Etiology Benign pleural thickening caused by fibrosis is the second most common pleural abnormality, the most common one being effusion. Pleural fibrosis has a number of causes and is the outcome of many pleural diseases and a potential complication of…