Adenocarcinoma of the lung CT

Adenocarcinoma of the Lung Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Shanshan Cen, M.D. [2]

Overview

Chest CT scan may be helpful in the diagnosis of adenocarcinoma of the lung. Finding on CT scan suggestive of adenocarcinoma of the lung is a lung nodule with a rounded or irregular region of increased attenuation.

CT Scan

• CT scan is the preferred modality for staging adenocarcinoma of the lung.
• Findings on CT scan suggestive of adenocarcinoma of the lung include:
  • Adenocarcinoma appears as a lung nodule with a rounded or irregular region of increased attenuation, measuring less than 3 cm.
  • Based on degree of attenuation, lung nodules may be either ground glass, sub-solid, or solid.
  • Ground-glass attenuation corresponds to a lepidic growth pattern.
  • Solid component corresponds to invasive patterns.
  • Preinvasive category of adenocarcinoma in situ, minimally invasive adenocarcinoma, and lepidic predominant invasive adenocarcinoma has mostly a ground-glass component.
  • Invasive subtypes of adenocarcinoma are usually solid nodules.

• Invasive mucinous adenocarcinoma subtypes may have a variable appearance:
  • Consolidation
  • Air bronchograms
  • Multifocal subsolid nodules or masses

lung adenocarcinoma.Case courtesy of Dr Hani Salam, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/41015">rID: 41015</a>

References

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