Lung cancer and brain mets: what to know

Brain metastases are secondary tumours that began elsewhere and reached the brain. Their symptoms depend on the area affected and may include headaches, seizures, weakness or numbness on one side, changes in speech or vision, balance problems, confusion, or personality changes. These symptoms can also have other causes, so they do not establish a diagnosis by themselves. A clinical examination and brain imaging help the team assess what is happening. The lung cancer type, number and location of brain lesions, symptoms, and overall health all influence treatment planning. Brain Metastases provides related information about this condition.

Report new neurological symptoms promptly, including a headache pattern that is new for you, repeated vomiting, altered behaviour, or a first seizure. Bring a list of medicines and describe exactly when symptoms began. The team may arrange imaging, review previous scans, and test the tumour for features that affect systemic treatment; Genomic Tumour Profiling may be discussed. Options can include Radiotherapy, surgery in selected situations, or medicines such as Chemotherapy, alongside treatment for swelling or symptoms when needed. Palliative Care can support comfort and daily function at any stage of serious illness.

Call emergency services for a seizure, sudden weakness, new trouble speaking, loss of consciousness, severe confusion, or a sudden severe headache with vomiting. Do not drive yourself after a seizure or when confused. New balance or vision changes also need urgent clinical advice, especially if they are worsening. A hoarse voice alone has many possible causes; see Hoarse Voice, but seek urgent help when it occurs with breathing difficulty or other sudden neurological changes.

Ask: What does the imaging show, and is another scan needed? Are symptoms caused by a brain lesion, treatment, or another condition? What treatment is recommended first? Could Radiotherapy, surgery, Chemotherapy, or genomic testing help? How should I respond if a seizure, headache, or weakness returns?