Which one of the following statement is false about loculated pleural effusion?
They form obtuse angles against the mediastinum/chest wall when viewed in profile
They have unsharp margins when viewed enface
They do not conform to segmental distribution
The opacity may show air bronchogram
Air bronchogram is the bronchi filled with air visualised against the surrounding opacified alveoli. Ref: Perinatal and Pediatric Respiratory Care By Brian K. Walsh, Michael P. Czervinske, Robe M. DiBlasi, 2009, Page 445