Question

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Match the radiologic sign to the pathology. Chronic bronchitis 1. Water bottle sign Gout 2. Insular ribbon sign Pericardial effusion 3. Rat bite sign 4. Double duct sign Multiple myeloma < 5. Raindrop skull Pancreatic cancer 6. Tram-track sign Ischemic stroke

Answer 1

Chronic Bronchitis - Tram Track Sign (The tram track sign is due to the presence of broadened bronchial branches due to cylindrical bronchiectasis)

Gout - Rat Bite Sign (Due to the punched out erosions with sclerotic and overhanging margins)

Pericardial Effusion - Water Bottle Sign (Due to the enlargement of the cardiac silhouette on posterior–anterior CXR)

Mutiple Myeloma - Rain Drop Skull (Due to the presence of distinct lytic lesions all around the skull in various sizes)

Pancreatic Cancer - Double-duct Sign (Due to the presence of simultaneous dilatation of the common bile and pancreatic ducts)

Ischemic Stroke - Insular Ribbon Sign (Due to the gray-white interface depletion in the lateral margins of the insula)