Chest Imaging Signs

Chest Radiology Signs:

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Many of the signs are not specific. Please click on the signs for other differentials.

‘Felson Signs – classic signs in chest radiography described by Dr Benjamin Felson’ revisited – Journal of Medical Imaging and Radiation Oncology 2014

Signs in chest imaging Diagn Interv Radiol 2011

Radiologic Signs in Thoracic Imaging AJR 2009

Signs in Thoracic Imaging Journal of Thoracic Imaging 2006

Air Crescent Sign – Invasive aspergillosis

Atoll sign ( Reversed halo sign) – Cryptogenic organizing pneumonia

Black Pleural Line Sign – Pulmonary Alveolar Microlithiasis

Button Sequestrum Sign – Eosinophilic granuloma

Bulging Fissure sign – Klebsiella pneumoniae pneumonia

Cervicothoracic sign – Evaluate mediastinal location

Cheerio Sign – AdenoCarcinoma

Comet Tail Sign – Round atelectasis

Continuous diaphragm sign – Pneumomediastinum vs pneumothorax

Crazy-paving Sign – Pulmonary alveolar proteinosis

CT Angiogram Sign – Bronchoalveolar cell carcinoma

Deep Sulcus Sign- Pneumothorax

Double density sign – Left atrial enlargement

Extrapleural Fat Sign – Extrapleural hematoma

Fissure Sign – Pleural effusion

Football Sign – Massive pneumoperitoneum

Galaxy Sign – Sarcoidosis

Gloved Finger Sign – Allergic bronchopulmonary aspergillosis

Golden S Sign – Right upper lobe collapse

Hampton Hump – Pulmonary infarct

Halo Sign- Invasive pulmonary aspergillosis

Headcheese Sign – Hypersensitive Pneumonitis

Hilum overlay sign – to identify mediastinal location of mass

Incomplete Border Sign – Extrapulmonary Lesions

Juxtaphrenic peak sign – Upper lobe collapse

Luftsichel sign – Left upper lobe collapse

Midsternal Stripe Sign – Sternal Dehiscence

Monod Sign – Mycetoma

Naclerio’s V Sign – Pneumomediastinum

Pleural Sandwich Sign – Lymphoma

Positive bronchus sign – Bronchogenic carcinoma

Reversed halo sign (Atoll sign) – Cryptogenic organizing pneumonia

Ring-around-the-Artery Sign – Pneumomediastinum

Sandstorm-like appearance – Pulmonary Alveolar Microlithiasis

Scimitar Sign – Partial anomalous pulmonary venous return

Signet Ring Sign – Bronchiectasis

Split pleura sign – Empyema

Steeple Sign – Croup

Subpleural Sparing sign – Pulmonary contusion

Tree in bud sign – Mycobacterium tuberculosis

Water Lily sign – Hydatid cyst (also for other hydatid cyst signs)

Westermark sign – Pulmonary embolism

 

Chest Imaging Signs