Acronym

GGO - Ground Glass Opacity

Ground Glass Opacity

Computed tomography finding showing hazy opacity without obscuring underlying vessels

Expansion

Ground Glass Opacity

Purpose

Suggests alveolar or interstitial process; non-specific but important finding

Clinical Context

Ground glass opacity: hazy density not obscuring vessels. Non-specific. Diffuse ground glass opacity suggests acute infection (coronavirus 2019 pneumonia), interstitial lung disease, or systemic disease.

  • Consolidation
  • Interstitial lung disease

Key Points

  • Ground glass opacity non-specific; differential includes infection, malignancy, interstitial lung disease, diffuse alveolar haemorrhage, aspiration