Table 4.

Differential diagnosis of isolated cystic shadow adjacent to the heart.

Lesion	Differentiating feature
Bronchial cysts:	Lined with bronchial epithelium46
Localised pericardial effusion:	Fluid between visceral and parietal pericardium
Teratoma:	Usually associated with some solid components along with cystic components52
Neuroenteric cyst:	Located in the right posterior chest and associated with vertebral anomalies31
Lymphangioma:	Multilocular or multiple cysts31
Congenital cysts of primitive foregut origin (bronchogenic cyst, gastroenteric cyst, and esophageal duplication cyst):	Usually located in posterior mediastinum and are lined by epithelium