You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is 20 years old male patient came to ER with severe dyspnoea. On examination, there is severe tachycardia, hypotension with distended neck veins. Chest x-ray is given below. Diagnosis is? and explain in detail?
Tension pneumothoraces occur when intrapleural air accumulates progressively in such a way as to exe positive pressure on mediastinal and intrathoracic structures. It is a life-threatening occurrence requiring both rapid recognition and prompt treatment to avoid a cardiorespiratory arrest. A non-tension pneumothorax is properly called a simple pneumothorax.