“ The lungs are the second most common site (about 15%) after the liver to be affected. Up to 15%-25% show no symptoms. Diagnosis made with ...
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The lungs are the second most common site (about 15%) after the liver to be affected. Up to 15%-25% show no symptoms. Diagnosis made with Casoni skin test or serological antigens. Expect blood eosinophilia.
PLAIN FILM
• Multiple well-defined, rounded masses (up to 20 cm).
• More common in the lower lobes, may have an air-fluid level (due to communication with the bronchial tree).
CT
• Cyst with low-density contents, rarely calcification.
• ‘Water lily’ sign describes the floating cyst membrane within cyst fluid.
• ‘Empty cyst’ sign occurs where cyst contents have been expectorated.
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