What should you know about lung cancer brain metastases symptoms?

Brain metastases are secondary tumours that have travelled to the brain from another cancer. Lung cancer is one possible source, alongside conditions such as breast cancer and melanoma. Symptoms depend on the area affected and may include a new or changing headache, nausea, seizure, weakness or numbness on one side, trouble speaking, vision changes, personality or memory changes, sleepiness, or unsteady walking.

These symptoms can also result from migraine, stroke, infection, medicine effects, or other neurological conditions. A symptom does not prove brain metastases. Doctors may use a neurological examination and brain imaging to investigate the cause.

Contact the oncology team promptly about a new neurological symptom, even if it comes and goes. Record when it started, how long it lasted, and whether it affected speech, strength, vision, or awareness. Treatment depends on the number, size, and location of lesions, the cancer type, symptoms, and overall health. Options may include steroids for swelling, stereotactic radiosurgery, whole brain radiotherapy, surgery, or treatment directed at the cancer elsewhere.

Seek emergency help for a first seizure, a seizure that does not stop, sudden facial drooping or weakness, new difficulty speaking, severe confusion, loss of consciousness, or a sudden severe headache. Do not drive yourself if you are confused, weak, or having vision problems.

Ask which scan is needed, what the findings could mean, and whether swelling is contributing to symptoms. Ask how each treatment may affect thinking, hair, movement, independence, and everyday activities, and who to contact if symptoms change.