Fig. 7

Echinococcosis. a Chest radiograph. There is a cystic lesion in the right lower lobe (arrow) with an air-fluid level corresponding to a pulmonary hydatid cyst communicated with the airway. The patient had expectoration of cyst components. b CT image of the same patient as in figure a, showing the hydatid cyst communicating with a subsegmental bronchus (arrow). c Contrast-enhanced CT image showing a complex lesion in the left kidney (arrows) containing dense material and membranes, and having a partially calcified wall, it proved to be a renal hydatid cyst surgically and histopathologically. d Multiple cystic lesions in the liver and peritoneum, some with partially calcified walls, which also proved to be hydatid disease surgically and histopathologically (arrowheads). e T2-weighted double inversion recovery MR image of the heart. It shows a hyperintense intramyocardial lesion in the posterobasal segment of the left ventricle that proved to be a hydatid cyst surgically and histopathologically (white arrow) f Gadolinium-enhanced fat-saturated T1-weighted double inversion recovery MR image of the heart, from the same patient as in e. It shows subtle peripheral enhancement of the lesion intramyocardial lesion (arrow), and pericardial effusion (asterisk) with pericardial enhancement (arrowheads) indicating pericarditis