CT scan may be helpful in the diagnosis of bronchogenic cyst. The density of bronchogenic cysts is variable from water density to high density due to blood, anthracotic pigment, increased calcium content, or increased protein content of the fluid.[1][2] Findings on CT scan suggestive of bronchogenic cyst is an
ovoid and well-defined encapsulated low-density cystic mass with no contrast enhancement.[4][5]
Thin subtle walls
Non-contrast enhanced axial CT of mediastinal bronchogenic cyst showing a well-defined anterior mediastinal mass with incomplete peripheral thin linear calcification.. Case courtesy of Dr Mostafa El-Feky (picture courtesy: Radiopaedia)