<prompt> Ground glass appearance is not seen inHyline membrane diseaseLeft to right shuntsPneumoniaObstructive TAPVC  <response>: B i.e. Left to Right Shunt Ground Glass Appearance It is radiological marker of pathology in air space or interstitiumQ. Presents with increased lung density which on chest X Ray obscures broncho vesicular markings but present on CT ; if bronchial vascular markings are absent both in X Ray CT then ka consolidation Total Anomalous Pulmonary Venous Drainage TAPVD Due to Interstial alveolar edema caused by pulmonary venous hypeension Obstructed TAPVD usually presents in neonatal period with cynosis and severe respiratory distress and it is difficult to differentiate it from pulmonary hypeension severe pulmonary disease. 