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Diagnosis

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"pleural effusion" AND diagnosis

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pleural effusion chest radiograph meniscus sign diagnosis

Right-sided pleural effusion (hydrothorax), moderate to large in volume.
The chest radiograph shows homogeneous opacity at the right lung base with blunting of the right costophrenic angle and an upward-concave meniscus sign, with adjacent compressive right lower-lobe atelectasis. This is typical of a pleural effusion, as described in radiographic references.

Full diagnosis and conclusion

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Finding Sources
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"pleural effusion" AND diagnosis

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pleural effusion chest x-ray meniscus sign clinical radiology interpretation

Chest X-ray diagnosis
  • Moderate right-sided pleural effusion (right hydrothorax).
  • Blunting of the right costophrenic angle with a smooth, upwardly concave upper margin, the meniscus sign.
  • Associated compressive/passive atelectatic opacity of the right lower lung.
  • Left lung and left costophrenic angle are clear.
  • No visible pneumothorax. No focal left-sided consolidation.
Radiological conclusion:
Moderate free-flowing right pleural effusion with adjacent right basal compressive atelectasis. The radiograph alone cannot determine the cause. Pleural ultrasound and, if clinically indicated, diagnostic thoracentesis should be considered. The meniscus configuration is characteristic of pleural fluid on an upright frontal radiograph, as described in this radiology reference.
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