Pulmonary Imaging Flashcards
Most common form of atelectasis
Obstructive/ resorptive atelectasis
Most common cause of uniform mediastinal widening on frontal radiographs
Mediastinal lipomatosis
Most common thoracic inlet mass seen in older patients
Tortuous arterial structure
Most common benign mediastinal germ cell tumor
Teratoma
Most common malignant germ cell tumor
Seminoma
Most common cause of chronic fibrosing (sclerosing) mediastinitis
Granulomatous infection
Secondary to Histoplasma capsulatum
Most common chest radiographic finding of acute mediastinitis
Widening of the mediastinum
Pleural effusion
Most commonly affected structure in chronic fibrosing mediastinitis
Superior vena cava
Most common cause of mediastinal hemorrhage
Injury to mediastinal vessels resulting from blunt or penetrating thoracic trauma
Most common source of pneumomediastinum
Air in the lungs
Alveolar rupture
Viral infections most commonly associated with hilar lymph node enlargement
Infectious mononucleosis
Measles pneumonia
Most common cause of small hilum
Atelectasis and resection of a portion of lung
Most common form of pulmonary edema
Hydrostatic pulmonary edema
Most common type of lung cancer
Adenocarcinoma
Most common cause of SVC syndrome
Lung cancer
Most common primary tracheal malignancy
Squamous cell carcinoma
Most common types of thyroid malignancy to invade the trachea
Papillary and follicular carcinomas
Most common manifestation of hematogeneous metastases to the lung
Pulmonary nodules
Most common pattern of pulmonary infectious disease
Bronchopneumonia
Most commonly isolated bacteria in patients with pneumonia who require hospitalization
Streptococcus pneumoniae
Most common infectious agent in patients with COPD, alcoholism, DM, and those with anatomic or functional splenectomy
Haemophilus influenza
Most common atypical pneumonia
Mycoplasma
Most common organism of atypical myocobaterium infection
Mycobacterium avium intracellulare or Mycobacterium kansasii
Most common viral pneumonia
Influenza
