Complicated pulmonary hydatid cyst
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Chest pain, cough for six months.No history of fever, hemoptysis. No past history of tuberculosis.
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Air-filled cavitary lesion of approximate size 8 cm x 7 cm in right middle lobe containing membrane-like structures noted. The cavity communicates with a bronchus. Internal structures of the cavity shifts between supine and prone position. Tree in bud sign is seen in the right lower lobe, left upper and lower lobe.
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Air filled cavitary lesion with internal membranous structures noted in right middle lobe. Membranous structures moved anteriorly on prone position.There is communication of the cavity with a bronchus. Right lower lobe and left lung field show tree-in-bud sign suggestive of endobronchial spread (rupture of cyst into bronchus).
Patient had peripheral eosinophilia and positive IgG echinococcal antibody.
- 1. Gottstein B, Reichen J. Hydatid lung disease (echinococcosis/hydatidosis). (2002) Clinics in chest medicine. 23 (2): 397-408, ix. doi:10.1016/s0272-5231(02)00007-2 - Pubmed
- 2. Erdem CZ, Erdem LO. Radiological characteristics of pulmonary hydatid disease in children: less common radiological appearances. (2003) European journal of radiology. 45 (2): 123-8. doi:10.1016/s0720-048x(02)00054-2 - Pubmed