Lung Metastases-Miliary



  • FOB: BAL may be diagnostic in cases due to lymphoma (however, lymphocytosis, >35%, may also be seen in sarcoid, berylliosis, hypersensitivity pneumonitis, drug-induced ILD, LIP)
    • Normal BAL lymphocyte percentage: <15%
    • TBB: may be diagnostic
  • CXR/Chest CT
    • Miliary pattern (2-3 mm):
      • May occur with/ without lymphangitic pattern in lymphoma cases
      • May occur with/ without larger lung nodules in renal cell and melanoma cases


  • Miliary Lung Nodules
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  • Miliary opacities diagnosed as lung metastases of a thyroid carcinoma after 13 years of stability. Chest September 1993 vol. 104 no. 3 981-982
  • Association of miliary lung metastases and bone metastases in bronchogenic carcinoma. Chest September 1993 vol. 104 no. 3 948-950