Lung Cancer
Lung Cancer: Symptoms, Causes, Diagnosis, Treatment, and Future Outlook.: Symptoms, Causes, Diagnosis, Treatment, and Future Outlook.
Disclaimer:
This blog is for informational purposes only and should not be taken as medical advice. Content is sourced from third parties, and we do not guarantee accuracy or accept any liability for its use. Always consult a qualified healthcare professional for medical guidance.
What is Lung Cancer?
Lung cancer originates in lung tissues, mainly non-small cell (NSCLC, 85%, adenocarcinoma, squamous, large cell) or small cell (SCLC, 15%). In 2025, ~228,820 US cases, leading cancer death cause.
Symptoms
Symptoms include persistent cough, hemoptysis, chest pain, shortness of breath, hoarseness, weight loss, fatigue, recurrent infections. Advanced: bone pain, headaches. In 2025, early screening detects asymptomatic.
Causes
Smoking (85%), radon, asbestos, pollution, genetics (EGFR, KRAS mutations in NSCLC). Secondhand smoke, family history. In 2025, vaping links emerge.
Diagnosis
Diagnosis uses CT (low-dose screening), biopsy (bronchoscopy, needle), molecular testing (PD-L1, EGFR). Staging TNM. In 2025, AI CT improves detection.
Treatment
NSCLC: surgery for early, radiation, chemo, targeted (osimertinib for EGFR), immunotherapy (pembrolizumab). SCLC: chemo-radiation. In 2025, combinations extend survival.
Future Outlook
In 2025, 5-year survival is 25%, 63% localised. Immunotherapy raises advanced to 30%. By 2030, vaccines/AI could reach 40%.
Sources
The information for lung cancer is sourced from Cleveland Clinic’s “Lung Cancer: Types, Stages, Symptoms, Diagnosis & Treatment” for diagnosis; MSKCC’s “New Lung Cancer Treatments Aim to Reduce Deaths in 2025 and Beyond” for 2025 updates; LCRF’s “Lung cancer facts” for facts; PMC’s “Update 2025: Management of Non‑Small-Cell Lung Cancer” for management; Pfizer’s “Lung Cancer: Symptoms, Signs, Treatment and Causes” for causes; LUNGevity’s “2025 ASCO: Highlights of Lung Cancer Research” for research; Mayo Clinic’s “Lung cancer – Symptoms and causes” for causes; OncoDaily’s “Metastatic Lung Cancer: Causes, Symptoms, Treatment, and 2025 Insights” for metastatic; American Lung Association’s “State of Lung Cancer | Key Findings” for findings; NCI’s “Non-Small Cell Lung Cancer Treatment” for treatment.