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Vol. 56. Issue 4.
Pages 249 (April 2020)
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Vol. 56. Issue 4.
Pages 249 (April 2020)
Clinical Image
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Moon Sign Due to Hydatid Cyst in Chest-X-ray
Signo de la media luna debido a un quiste hidatídico en la radiografía de tórax
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Yener Aydin
Corresponding author
dryeneraydin@hotmail.com

Corresponding author.
, Atilla Eroglu, Ali Bilal Ulas
Department of Thoracic Surgery, Ataturk University, Medical Faculty, Erzurum, Turkey
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A 17 years old male presented with cough. Posteroanterior and lateraly direct radiography showed cavitary lesion in the middle zone and “moonsign” in the lower zone of the right lung (Figs. 1 and 2). The patient underwent right thoracotomy. Cystotomy and capitonnage was performed to hydatid cyst.

Fig. 1.

Moon sign is seen on the posteroanterior chest X-ray (arrow).

(0.1MB).
Fig. 2.

Moon sign is seen on the lateral chest X-ray (arrow).

(0.12MB).

Radiologically, there are many radiological signs associated with the hydatid cyst.1,2 Moon sign is seen when air enters between the pericyst and endocyst. This finding indicates that the hydatid cyst will rupture. Radiological findings have an important role in the diagnosis of pulmonary hydatid cyst.

References
[1]
Y. Aydin, H. Ogul, A. Eroglu.
A rare radiological finding in pulmonary hydatid cyst: grape cluster appearance.
Arch Bronconeumol, (2019),
[2]
M.K. Garg, M. Sharma, A. Gulati, U. Gorsi, A.N. Aggarwal, R. Agarwal, N. Khandelwal.
Imaging in pulmonary hydatid cysts.
World J Radiol, 8 (2016), pp. 581-587
Copyright © 2019. SEPAR
Archivos de Bronconeumología

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