Which metastases are exceptions to the rule that distant metastases are an absolute contraindication to pulmonary resection?

• A. Brain metastasis
• B. Liver metastasis
• C. Adrenal metastasis
• D. Both brain and adrenal metastases

Answer: (D)

The idea here is that removing lung metastases isn’t always ruled out when metastases exist elsewhere; it becomes a possibility when the disease outside the lungs is limited and controllable. Brain and adrenal metastases are two classic examples of such situations.

If a patient has a single brain metastasis that can be removed or effectively treated with focused radiotherapy, and the intracranial disease is controlled with good performance status, removing the lung metastases can still offer meaningful benefit. The same logic applies to a solitary adrenal metastasis that can be surgically removed; if there’s no widespread extrathoracic spread and the patient can tolerate surgery, combining local control of both sites with resection of pulmonary metastases can be considered.

This reflects the concept of oligometastatic disease, where a limited number of metastatic sites may be treated with curative or long-term disease-control intent. In these carefully selected cases, brain or adrenal metastases do not automatically exclude pulmonary resection.

In contrast, widespread extrathoracic disease or uncontrolled extrapulmonary metastases would still argue against pulmonary resection, since the overall disease burden remains high and surgical success is unlikely to meaningfully improve outcomes.