The difference between lung adenocarcinoma and lung cancer

Lung adenocarcinoma and lung cancer are two different types of lung malignancies.

Lung adenocarcinoma is a tumor that originates from the glandular tissue of the lung, usually in the peripheral lung tissue, but can also occur in the central part. It is characterized by glandular cells or glandular secretions in the interstitial cells. Lung adenocarcinoma is usually not related to smoking and is more common in women and non-smokers. It grows slowly and has no obvious early symptoms, so it is often misdiagnosed as other respiratory diseases.

Lung cancer is a tumor that originates from the epithelial tissue of the lungs. It is mainly divided into two types: non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC). NSCLC accounts for the majority of lung cancers and includes adenocarcinoma, squamous cell carcinoma, and large cell carcinoma. SCLC is a highly aggressive type of lung cancer that is common in smokers. Lung cancer grows quickly, and early symptoms may include coughing, coughing up blood, chest pain, and difficulty breathing.

Although both lung adenocarcinoma and lung cancer are malignant tumors of the lungs, there are some differences in their location, tissue type, development speed, and clinical manifestations. Understanding these differences can help doctors make accurate diagnoses and treatments. For patients who suspect lung tumors, it is very important to see a doctor early and undergo detailed examinations.