Spinnaker sign is a feature of: (A) Pleural effusion, (B) Pneumothorax, (C) Pneumomediastinum, (D) Fracture of bronchus
Answer is C. Thymic sail sign is the normal appearance of thymic shadow abutting the Hea shadow seen on Chest X ray of a normal Infant Spinnaker sail sign is the lifting of the Thymic shadow with the lucency of air between Thymus and Hea in cases Of Pneumomediastinum thymus sail sign- normal spinnaker sign