Lambda sign (sarcoidosis)

The lambda sign is seen on gallium-67 scans in the setting of thoracic sarcoidosis. Bilateral hilar and right paratracheal lymph nodes are typically involved which can resemble the Greek letter lambda (λ).

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Article information

rID: 6824
System: Chest
Section: Signs
Synonyms or Alternate Spellings:
  • Lambda sign of sarcoidosis

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Cases and figures

  • Figure 1: equivalence on gross pathology
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  • Case 1: chest x-ray
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