CASE 47: CT CHEST

50F with shadow on prep X-ray

Findings reveal a non enhancing cystic lesion within the pericardium. No solid lesion seen within.

IMPRESSION

PERICARDIAL CYST

DISCUSSION

Pericardial (mesothelial) cysts result from aberrations in the formation of coelomic (somatic) cavities. The cyst walls are composed of connective tissue and a single layer of mesothelial cells.CT and MR imaging features show the cyst to be in the anterior mediastinum and features are similar to those of other congenital mediastinal cysts