Which one of the following statement is false about loculated pleural effusion?
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
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