<prompt> A persons X-ray chest showing homogenous opacity on right side writh shifting of mediastinum on opposite side. Most probable diagnosis isare:CollapsePleural effusionPneumothoraxConsolidation  <response>: Ans: B Pleural effusion Pleural effusion: X-ray chest pjm20th139 Homogenous opacityShift of mediastinum to the opposite sideConcave upper borderElliss curvePneumonectomy chestEarlv sign: within 24 hr: Partial filling of thorn, ipsilaterai mediastinal shift diaphragmatic eievation- Dahnert Radiology 5th513Table: PjM 20th139PathologyMediastinumChest wall processConsolidationCentralNormalTotal collapseSame sideRetractionPleural effusionOpposite sideNormalPneumothoraxOpposite sideNormalFibrosisRetractionSame side 