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From the case: Luftsichel sign

X-ray
Frontal
Modality: X-ray (Frontal)

- “ The Luftsichel sign is due to hyperexpansion of superior segment of left lower lobe due to left upper lobe collapse, with insinuation of the expan...”

Used in the following article:

  • Left upper lobe collapse - “ Left upper lobe collapse has distinctive features but can be challenging to identify on chest radiographs by the uninitiated. Hence it is a classi...”
  • Luftsichel sign (lungs) - “ The luftsichel sign is seen in some cases of left upper lobe collapse and refers to the frontal chest radiographic appearance due to hyperinflatio...”
  • Juxtaphrenic peak sign - “ The juxtaphrenic peak sign, also known as diaphragmatic tenting or Kattan sign, refers to the peaked or tented appearance of a hemidiaphragm which...”

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