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 Features of 'Loculatedpleural effusion' on X-ray chest include all except and explain in detail?
(A) Air bronchogram present # Presence of air bronchogram excludes any pleural or mediastinal pathology.> Air bronchogram is visibility of bronchi with in parenchymal lesion, so it is found in alveolar pathology as Consolidation Infarction Contusion> Loculation should be considered when a density is considered to be fluid and does not correspond to anatomical location of fissures (loculation can occur within fissures).> It is not in the gravity dependant location.> Note in the upright film on right you are able to see the diaphragm medially, indicating that the fluid is not in the dependent portion.> Empyemas loculate> Consider all loculated effusions as empyema unless proven otherwise.