Hydatid cyst mimicking a pericardial cyst

A 27-year-old female patient presented to our clinic because of atypical chest pain. her past medical history was unremarkable for any chronic illness. her vital signs comprised a heart rate of 85 bpm,blood pressure of 125/70 mm hg,and oxygen saturation of 98%. physical examination was unremarkable. electrocardiography showed normal sinus rhythm without any st-segment and t-wave abnormalities. her blood work,including electrolytes,complete blood count,hepatic panel,and troponin level,was within the normal limits. transthoracic echocardiography in the parasternal short-axis view revealed a third chamber besides the left and right ventricles (figure 1). modified substernal view showed 2 cysts in the liver (figure 2). a contrast-enhanced chest computed tomography scan in the axial plane demonstrated 2 cysts in the liver,and there was no pericardial involvement (figure 3 and figure 4). the patient was referred for general surgery on the diagnosis of a hydatid cyst. © 2017,tehran heart center. all rights reserved.