Change: lateral chest image demonstrates no abnormal RML opacity. There is evidence of pectus excavatum (depression of the sternum). Pectus excavatum is a known cause of false RML disease and is likely to be a contributing cause of the pseudo-silhouette sign on the PA chest image. In thesepatients, patientswith   View changes from previous version. (Word count: 1193)

Change: 2001note- this is unlikely to represent an acute collapseThe centray ray is aligned to the orientation of the RML in the lordotic position. The lordotic position can reveal RML pathology which is hidden on the conventional PA and lateral views... back to the Applied Radiography home page   View changes from previous version. (Word count: 801)

Change: Importantly, the horizontal fissure will tend to disappear from the AP/PA chest image as the RML collapses because it is no longer horizontal.The child has abnormal opacity in the region of the RML. There are air   View changes from previous version. (Word count: 650)

Change: When viewing chest radiographs with pathology involving the right middle lobe, it is important to think about the shape and position of the RML in   View changes from previous version. (Word count: 689)

Change: There is no abnormal RML opacity. There is evidence of pectus excavatum (depression of the sternum). Pectus excavatum is a known cause of false RML disease and is likely to be the cause of the pseudo-silhouette sign on the PA image. beware!... back to the Applied Radiography home page   View changes from previous version. (Word count: 660)

Change:  complicated by a right sided pleural effusion with a subpulmonic component.The incersaed density over the thoracic vertebra suggests that this is a collapse/consolidation of the superior segment of the RLL ... back to the Applied Radiography home page   View changes from previous version. (Word count: 424)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 417)

Change: A partial RML collapse can be difficult to appreciate because the increase in opacity of the lobe is superimposed over the heart shadowA collapse of the lingula segment of the left upper lobe (LUL) If there is suffiecientsufficient collapse of the RML, the   View changes from previous version. (Word count: 354)

Change: Right Middle Lobe (RML) Collapse   View changes from previous version. (Word count: 5)