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Finger in glove sign – refers to the characteristic finger-like…
Finger in glove sign – refers to the characteristic finger-like appearance of mucous plugs within dilated bronchiectatic central bronchi in allergic bronchopulmonary aspergillosis (ABPA). Seen here in...
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Hemithorax white-out – it is not hard to detect a completely…
Hemithorax white-out – it is not hard to detect a completely opacified hemithorax, however determining the underlying cause by assessing secondary signs is more of a challenge. The position of the...
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Water bottle sign – refers to the shape of the cardiac…
Water bottle sign – refers to the shape of the cardiac silhouette on erect frontal chest x-rays in patients who have a very large pericardial effusion. The fluid, often measuring a litre or more,...
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Unilateral hyperlucent hemithorax – when one side of the chest…
Unilateral hyperlucent hemithorax – when one side of the chest is more lucent (black) than the other on a frontal chest radiograph. There are many potential causes including a few tricky ones. Some...
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Pancoast tumour - a primary lung cancer that arises in the lung…
Pancoast tumour - a primary lung cancer that arises in the lung apex and invades soft tissues such as the brachial plexus. Although classically these tumours present with Pancoast syndrome (shoulder...
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Garland triad – a chest radiograph sign of sarcoidosis. It…
Garland triad – a chest radiograph sign of sarcoidosis. It refers to a triad of lymph node enlargement; right paratracheal, right hilar and left hilar. This pattern of nodal enlargement, also known as...
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Golden S sign – a chest radiograph sign of right upper lobe…
Golden S sign – a chest radiograph sign of right upper lobe collapse due to an obstructing central mass. The margin of the collapsed upper lobe forms a reverse S shape (blue line) as the peripheral...
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Left atrial enlargement – while echocardiography has emerged as…
Left atrial enlargement – while echocardiography has emerged as the preferred tool for assessing cardiac chamber size, recognising the features of left atrial enlargement on chest radiography remains...
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CAVITY – a useful mnemonic for the causes of a cavitating lung…
CAVITY – a useful mnemonic for the causes of a cavitating lung mass. C = cancer bronchogenic carcinoma : most frequently SCC (left image) cavitatory metastasis : again most frequently SCC A =...
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Holly leaf sign - refers to the typical chest radiograph…
Holly leaf sign - refers to the typical chest radiograph appearance of calcified pleural plaques. The well-defined but irregular thickened edges simulate the appearance of a holly leaf. ‘Geographic...
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