Conclusion
- Lung metastases occur in approximately 30% of malignant disease cases.
- Frequently, it is the presenting manifestation and search for the primary is lengthy and
cumbersome.
- The roentgen patterns of thoracic metastases vary. Awareness of the common
primaries presenting with a metastatic pattern facilitates the search for the source.
- The
venous and lymphatic drainage of the organ and the cell type are some variables that seem
to determine the metastatic pattern.
- Each metastatic pattern has a unique clinical
presentation because of its locale and extent.
- Each pattern raises a distinct differential
diagnosis, differs in the best diagnostic procedure and the choice of therapeutic
modality.