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 Which of the following is not a sign of pulmonary hydatidosis? and explain in detail?
Chest Xray of pulmonary hydatidosis shows a dense homogenous opacity.Ruptured hydatid cyst with collapsed laminated membrane produces irregular projections in a fluid level-'Water-lily' sign.It also shows 'Meniscus' sign or 'crescentic cap of air' when it communicates into bronchial tree.Other signs include 'Rising sun' or 'Daughter cyst' sign','Air-bubble'sign,etc. Reference:SRB's manual of surgery,5th edition,page no:1125