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Copyright ©The Author(s) 2016.
World J Radiol. Jun 28, 2016; 8(6): 581-587
Published online Jun 28, 2016. doi: 10.4329/wjr.v8.i6.581
Table 1 Classical signs of pulmonary hydatid cyst on chest X-ray
Uncomplicated hydatid cystComplicated hydatid cyst
Well circumscribed round radio-opacity (resembling canon ball on AP and rugby ball on lateral projection)Crescent sign
Polycyclic and bilobed appearanceCumbo or double arch sign
Slot sign (impending rupture)Water lily or camelotte sign
Rising sun sign
Dry cyst sign