Case Report of Hydatid Cyst in the Pulmonary Artery Uncommon Presentation: CT and MRI Findings

Abstract

Background: Hydatid cysts can be found in any organ. In adults, the liver and lungs are the most common locations; hydatid cysts in the pulmonary artery are rare.

Clinical case: We present the case of an 86-year-old female with a history of hepatic hydatid cyst since 2012, who presented with complaints of chronic productive cough, yellowish-green sputum, and dyspnea. CT and MRI showed multiseptate hydatid cysts in the right pulmonary artery.

Figure 1

(a-b) CT axial images show pulmonary artery with multiseptate hydatid cysts (red arrows), seen in the right main pulmonary artery and the lower lobar branches of the right pulmonary artery, along with other parenchymal cysts (blue arrows).

Figure 2

(a-b) CT coronal images show right main pulmonary artery hydatid cysts (red arrows) along with a cyst of the right hepatic lobe (blue arrows).

Figure 3

CT axial image shows a large cyst in the right lower lobe representing parenchymal hydatid cyst (yellow arrow); there is also a large cyst with air seen in the left lower lobe representing hydatid cyst in the left lung (green arrow).

Figure 4

(a-b) Axial T1 and T2 weighted images show hydatid cyst (red arrows) in the right main pulmonary artery and small pleural effusions on the left side (green arrows).

Figure 5

A coronal T2 weighted image shows a high signal intensity cystic lesion (red arrow) within the right main pulmonary artery with multiseptate high intensity cystic lesion on the right hepatic lobe (blue arrow).

Figure 6

Axial T2 weighted image shows a large cyst in the right lower lobe representing parenchymal hydatid cyst (blue arrow); there is also a large cyst with air seen in the left lower lobe representing hydatid cyst in the left lung (green arrow).