This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: X-RAYS, Subject name: Radiology
A 45 yr old male comes to AIIMS emergency dept at 1am after binge drinking in night presents with severe chest pain following a episode of vomiting,the chest radiograph of this patient demonstrates which of following sign? 
Select and explain. 
A. Silhouette Sign, B. Naclerio V sign, C. Spinnaker Sign, D. Hilum Overlay Sign
B: Naclerio V sign
Answer: B: Naclerio V sign 
Explanation: The given image shows lucency along the medial pa of left hemi-diaphragm and lateral aspect of aoa - known as Naclerio V sign. Seen in Boerhaave syndrome Naclerio V sign (X- ray) CT Hilum Overlay Sign - If the pulmonary vessels are visible through the lesion/mass (not obscured by the mass) then it means that the mass/lesion is in either Anterior or posterior mediastinum but not in the hilum Hilum Overlay Sign Spinnaker Sign/ Thymus Sail Sign/ Angel wing sign - Seen in Pneumomediastinum Spinnaker Sign