title: Multi-vesicular pulmonary hydatid cyst, the potent underestimated factor in the formation of daughter cysts of pulmonary hydatid disease.
abstract: Pulmonary multi-vesicular hydatid disease (HD) with Echinococcus granulosus is rare. A 28-year-old woman presented to our center with cough and respiratory distress. Chest x-ray and computerized tomography scan revealed bilateral giant cysts with water-lily sign (ruptured hydatid cysts). The left cyst was in vicinity of heart. With thoracotomy cysts of both lungs were removed. Thousands of translucent, homogenized small daughter cysts were discovered from the left side cyst. Pathologic examinations revealed the ruptured hydatid cysts of both lungs with daughter cysts on the left lung cyst. To best of our knowledge probably this is the first report of multi-vesicular HD in lung. We suppose that the heart pulsation was effective in the formation of daughter cysts.
authors.affiliation: Department of Cardiothoracic Surgery, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Mohsen
authors.initials: M
authors.lastname: Sokouti
authors.affiliation: Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Babak
authors.initials: B
authors.lastname: Sokouti
authors.affiliation: Department of Pathology, Tabriz University of Medical Sciences, Tabriz, Iran.
authors.forename: Behrooz
authors.initials: B
authors.lastname: Shokouhi
authors.affiliation: Lung division of Department of Medicine, Urmia University of Medical Sciences, Urmia, Iran.
authors.forename: Mohammad Hossein
authors.initials: MH
authors.lastname: Rahimi-Rad
keywords: Daughter cyst; lungs; multi-vesicular hydatid cyst; ruptured