Dear Doctor: Can a lung biopsy cause painful nerve damage?

John was 61 when he was diagnosed with stage 4 lung cancer in 2021 🫁 Looking back, he remembers a cough that wouldn’t shift, a quiet wheeze and pain across his chest, shoulder and upper back. He kept going as normal, assuming it was nothing serious. What followed was months of scans, treatment and waiting. It took nine months before his biopsy was fully tested and doctors found an EGFR gene change - the result that finally opened up the right treatment for him. Through it all, John stayed ancho