case_images: PMC7294318_01
case_images: A 40-year-old woman with a migrating pericardial cyst. Frontal and lateral chest radiographs show a mass (M) with smooth contours at the right lung base extending along the major fissure on the lateral view.
case_images: JCIS-10-32-g001.jpg
case_images: PMC7294318_01_JCIS-10-32-g001.jpg
case_images: F1
case_images: The chest radiograph revealed a hazy opacity over the right lower thorax [Figure 1]. Contrast-enhanced CT scan of the chest showed a well-circumscribed homogeneous fluid attenuation collection within the right major fissure measuring 0 Hounsfield units (HU) [Figure 2 and Movie 1].
case_images: Images from contrast-enhanced computed tomography scan on the same patient. (a) Axial image shows round fluid collection (M) along the right major fissure. (b) Sagittal reformatted image shows fluid collection (M) extending along the right major fissure.
case_images: JCIS-10-32-g002.jpg
case_images: PMC7294318_01_JCIS-10-32-g002.jpg
case_images: F2
case_images: Contrast-enhanced CT scan of the chest showed a well-circumscribed homogeneous fluid attenuation collection within the right major fissure measuring 0 Hounsfield units (HU) [Figure 2 and Movie 1].
case_images: Images from computed tomography (CT) scan performed for localization and attempted aspiration of fluid collection. (a) Axial image performed with the patient in the supine position shows fluid collection (M) in the right major fissure. (b) CT image with the patient in the left lateral decubitus position shows that fluid collection (M) has migrated to the right cardiophrenic angle. (c) The coronal reformatted image obtained from CT with the patient in the left lateral decubitus position shows the typical appearance of a pericardial cyst with fluid attenuation mass (M) in the right cardiophrenic angle.
case_images: JCIS-10-32-g003.jpg
case_images: PMC7294318_01_JCIS-10-32-g003.jpg
case_images: F3
case_images: It was noted during the localization scan that images obtained with the patient supine showed the fluid collection to be in the right major fissure, abutting the lateral chest wall, while images with the patient in the left lateral decubitus position demonstrated the migration of the collection to the right cardiophrenic angle [Figure 3].