Chest Radiology — Flashcards

Flashcard 11: CO-RADS _____ (Very low risk - Normal/Non-infectious)

Answer: 1

Flashcard 12: A _____ infiltrate is characteristic of Blastomycosis on CXR, along with lesions or cavities in the lungs

Answer: patchy alveolar

Flashcard 13: _____ sign, is the most sensitive and specific sign on CT for diagnosing empyema

Answer: Split pleura

Flashcard 14: A minimum of _____ of effusion is required to be detected on lateral view

Answer: 75ml

Flashcard 15: Silicosis may present with '_____'' calcification of the hilar lymph nodes

Answer: eggshell

Flashcard 16: 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 17: _____ sign is seen on both PA chest radiographs and on CT scans in right upper lobe collapse

Answer: Golden S

Flashcard 18: _____ sign or Rising sun sign on CT scan, seen as an essentially dry cyst with crumpled membranes lying at its bottom is diagnostic of lung Hydatid cyst.

Answer: Serpent

Flashcard 19: One benign cause of a 'coin-lesion' on CXR is _____, which is benign tumor of lung tissue and cartilage

Answer: bronchial hamartoma

Flashcard 20: The _____ sign is seen in some cases of left upper lobe collapse.

Answer: Luftsichel