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Different HRCT and LUS patterns. a HRCT: normal. b LUS: normal pleural line (white arrow). No B-lines visible. c HRCT: ground-glass opacity (black arrow). d LUS: blurred and irregular pleural line (white arrow) and multiple B-lines (white empty arrow). e HRCT: honey-combing (black arrow). f LUS: blurred and irregular pleural line (white arrow) and multiple B-lines (“white lung”, white empty arrow). HRCT high-resolution computed tomography, LUS lung ultrasound
