[A case of rare pathological type of lung cancer caused by occupational exposure to asbestos].
Asbestos is a risk factor for occupational lung cancer. This article reported a case of asbestosis. During regular chest CT scans, an enlargement of nodules in the left lower lobe was observed. After undergoing relevant examinations, the patient underwent left lower lobe resection. Postoperative pathology confirmed the diagnosis as SMARCA4-deficient undifferentiated tumor. The patient was subsequently treated with immunotherapy, radiotherapy and chemotherapy and currently has a good prognosis.