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 Angle of tracheal bifurcation is increased in which chamber of hea enlargement. and explain in detail?
Normal tracheal angle: 40- 80deg The angle of tracheal bifurcation may be widened in the following conditions due to the mechanical splaying of the bronchi: Subcarinal masses Lobar collapse Left atrial enlargement Generalized cardiomegaly Pericardial effusion