Chest Radiology — Flashcards

Flashcard 21: In a patient with an aspergilloma, the fungal ball moves to the _____ portion of the cavity on an upright chest X-ray, as it is gravity dependent.

Answer: dependent

Extra: Aspergillomas are mobile masses of fungal hyphae, debris, and mucus. They typically occupy pre-existing cavities (e.g., from tuberculosis or sarcoidosis) and shift to the dependent part of the cavity when the patient's position changes. This mobility distinguishes an aspergilloma from other cavitary lesions.

Flashcard 22: _____ lines are seen when the interlobular septa in the pulmonary interstitium become prominent

Answer: Kerley

Flashcard 23: _____ triad, also known as the 1-2-3 sign or Pawnbrokers sign, is a lymph node enlargement pattern which has been described in sarcoidosis:1. Right paratracheal nodes2. Right hilar nodes3. Left hilar nodes

Answer: Garland

Flashcard 24: The _____ sign is seen in bronchiectasis on CT scan due to loss of peripheral tapering of the bronchi.

Answer: tram track

Flashcard 25: _____ of the lung presents similarly to pneumonia on CXR (hazy infiltrates, consolidation)

Answer: Adenocarcinoma in situ

Flashcard 26: Emphysema is characterized by increased _____ diameter with a flattened diaphragm on CXR

Answer: AP

Flashcard 27: _____ sign on HRCT is typically seen in angioinvasive aspergillosis and represents hemorrhage

Answer: Halo

Flashcard 28: _____ sign, initially described as the sarcoid galaxy, represents a coalescent granuloma seen in a minority of patients with pulmonary sarcoidosis.

Answer: Galaxy

Flashcard 29: _____ appearance on CT scan is characteristic of Alveolar proteinosis

Answer: Crazy pavement

Flashcard 30: The _____ sign is seen in cases of round atelectasis on CT scans of the chest.

Answer: comet-tail