Pulmonary Embolism Originating from a Hepatic Hydatid Cyst Ruptured into the Inferior Vena Cava: CT and MRI Findings

Abstract

Pulmonary embolism due to hydatid cysts is a very rare clinical entity. Hydatid pulmonary embolism can be distinguished from other causes of pulmonary embolism with contrast-enhanced computed tomography (CECT) and magnetic resonance imaging (MRI). MRI especially displays the cystic nature of lesions better than CECT. Here we report a 45-year-old male patient with the pulmonary embolism due to ruptured hydatid liver cyst into the inferior vena cava.

Radiological manifestations of thoracic hydatid cysts: pulmonary and extrapulmonary findings

“…The most frequent cause is the embolism of HC from primary cardiac locations. The inferior vena cava can also be involved by liver HCs, and in this way, HCs can spread to the right cardiac chambers [ 29 , 30 ]. Widening of the vascular lumen due to rounded intravascular masses with levels of fluid attenuation can be seen on CT angiography.…”

A huge right ventricular hydatid cyst related to tricuspid valve causing severe pulmonary hypertension

“…6 Pulmonary embolism due to hydatid cysts is a very rare clinical entity. 7 However, it was reported previously in the literature. 7,8 The patient had neither dyspnea nor syncope, and her vital signs were normal.…”

“…7 However, it was reported previously in the literature. 7,8 The patient had neither dyspnea nor syncope, and her vital signs were normal. Therefore, no additional investigations were carried out.…”

Comparison between CT and MRI in the assessment of pulmonary embolism

“…MRI is a good choice for patients who do not accept contrast media or radioactive detection. [29–32]…”