Empty cyst sign
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Citation:
Haouimi A, Knipe H, Empty cyst sign. Reference article, Radiopaedia.org (Accessed on 05 Mar 2025) https://doi.org/10.53347/rID-67694
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67694
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At the time the article was created Ammar Haouimi had no recorded disclosures.
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At the time the article was last revised Henry Knipe had no recorded disclosures.
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The empty cyst sign is described in hydatid disease. After rupture of the cyst and complete evacuation of its content, the pericyst becomes empty as an air-filled cyst on x-ray or CT 1,2. With superadded infection, an air-fluid level may appear within the cyst, mimicking a lung abscess 2.
References
- 1. H A Pendse, A J Nawale, S S Deshpande, S A Merchant. Radiologic Features of Hydatid Disease. (2015) Journal of Ultrasound in Medicine. 34 (5): 895. doi:10.7863/ultra.34.5.895 - Pubmed
- 2. Garg MK, Sharma M, Gulati A, et al. Imaging in pulmonary hydatid cysts. (2016) World Journal of Radiology. 8 (6): 581. doi:10.4329/wjr.v8.i6.581 - Pubmed