Ground glass density nodule

Dr Owen Kang and Dr Usman Bashir et al.

A ground glass density nodule (GGN) is a circumscribed area of increased pulmonary attenuation with preservation of the bronchial and vascular margins. A GGN can be:

Although encountered regularly, the incidence of cancer in these nodules has been reported as high as 63% (for partly solid nodules, in one study). Histologically these may represent:

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rID: 18986
Tag: cases
Synonyms or Alternate Spellings:
  • Ground glass density nodule (GGN)
  • Ground glass density nodules (GGN)
  • Ground glass density nodules
  • Ground glass nodule
  • Ground glass nodules
  • Ground glass pulmonary nodules
  • Ground glass lung nodule
  • Ground glass lung nodules
  • Ground glass pulmonary nodule
  • Pulmonary nodular ground-glass opacities
  • Pulmonary nodular ground-glass opacities (PNGGO)
  • Pulmonary nodular ground-glass opacities (NGGO's)
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    Figure 1: example - ground glass density nodules
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