Everything You Need to Know About : Lung Cancer

Lung Cancer, Symptoms, Causes, Diagnose, Treatment, Immunotherapy for Metastatic complete guide.

The two spongy lungs present in the upper abdomen of our body play a vital role in the life of a human being which helps in inhaling oxygen and exhaling carbon dioxide.

Lung cancer is the third most common cancer and the cause of cancer-related death in the United States. Approximately 541,000 people in the united living now are patients of lung cancer at some point in their lives.

Smoking is a leading factor, though not everyone who develops lung cancer has a history of smoking.

Lung cancer can be fatal, but the evolution of advancing in diagnosis and treatment is showing a positive outlook.

Complete Guide Everything You Need to Know About : Lung Cancer

What is Lung Cancer?

Lung cancer is a type of cancer that starts occurring in the lungs of our body. When the cells of the lungs stop following their life-cycle by developing and multiplying in an uncontrolled manner, such a condition is called a tumor, which is the primary reason for causing any type of cancer.

Explanation of two types of LC in brief:-


  1. Small Cell Lung Cancer: About 10% to 15% of all this cancers are SCLC.This type of cancer is faster in the rate of spreading than any other type of cancer.
  2. Non-Small Cell Lung Cancer: About 80% to 85% of people are affected by non-small cell lung cancer that it has a relatively low rate of spreading than small cell lung cancer. This type of this cancer has shown recovery in most of the times.

What are the Symptoms of Lung Cancer?

In most cases, symptoms are not observable until the cancer cells have completed their significant part of the spreading in the lungs.

Some of the most observed symptoms are as follows:

  1. A serious cough that will last even after 3 or more weeks.
  2. Frequent findings of chest infections
  3. An ache or pain while breathing and coughing.
  4. Loss of appetite and losing weight without any change in the diet
  5. Persistent breathlessness
  6. The intensity of the cough getting worse day by day.

What are the Causes of Lung Cancer?

  1. Due to smoking

By statistics, smoking and passive smoking is one of the leading reasons for the cause of this cancer. About 80% of this cancer death registered are due to smoking. Therefore the adverse effect of smoking can be seen here.

  • People Who don’t Smoke

People diagnosing this cancer without the habit of smoking can be many reasons.

  1. Air pollution 
  2. Genetic Inheritance from the ancestors
  3. Experiencing radioactive radiations from elements such as radon can cause mutation of the genes.

How to Detect or Diagnose Lung Cancer?

There are many ways to diagnose this cancer however, by the time we observe symptoms and confirm it is spreading at a significant rate in the body.

Some of the ways this cancer can be diagnosed are:

  1. Chest X-ray

Most of the times tumors in the lungs appear on X-rays as a white-grey mass. However, chest X-rays cannot give an accurate diagnosis because they often cannot distinguish between cancer and other conditions, such as a lung abscess (a collection of pus that forms in the lungs).

  • CT Scan

Recent studies have shown that diagnosing this cancer with a CT scan reduced 20% of this cancer deaths. Therefore it signifies that a CT scan is accurate to some extent in detecting this cancer.

  • Bronchoscopy and biopsy

Bronchoscopy also called fiber optic bronchoscopy is used to diagnose and sometimes treat lung conditions. If any traces of lung cancer is identified, bronchoscopy can provide a way for the doctor to view the tumor, assess the extent of the airway obstruction (blockage), and collect a tissue sample for analysis.

The map of stages of this cancer:


What is the Treatment for Lung Cancer?

Treatment is carried out by a team of specialists from different departments who work together to provide the best possible treatment.

There are many ways to treat this cancer but all just possible ways, not a complete solution because this cancer can again come back.

Some of the popular ways of treating this cancer are:

  1. Surgery
  2. Radiotherapy
  3. Chemotherapy

These are the popular ways for treating this cancer in the present medical care. But these treatments have their side effects and after-treatment complications.

Apart from all these regular techniques of treating this cancer, there is a new way of treatment made my activating and suppressing of the human immune system and i.e. Lung cancer Immunotherapy.

What is Lung Cancer Immunotherapy?

Recent insights into anti-tumor immunotherapy have led to a wave of clinical trials involving immunotherapy for this cancer to analyze the results for future uses. Vaccines have evolved from nonspecific immune stimulants, like Bacillus Chalmette-Guerin (BCG), to much more specific and potent strategies, some of which generate active immune responses against tumor-associated antigens.

Understanding the working principles of anti-tumor immunity and identifying target antigens will likely improve these target therapeutic strategies and provide them with a niche in the future of this cancer therapy.

An immunotherapy medicine called pembrolizumab is an option for non-small cell lung cancer. It is passed into the body through a drip into a vein in your arm or hand.

Side effects of this cancer Immunotherapy:

  1. feeling and being sick
  2. joint pain and swelling
  3. diarrhea
  4. fatigue
  5. changes to your skin, such as your skin becoming dry or itchy

What is Immunotherapy for Metastatic Lung Cancer?

Immunotherapy has given a setback in the field of treatment in cancer and given hope for the patients to continue their lives without being afraid.mAbstargeting programmed cell death-1 (PD-1), programmed cell death ligand-1 (PD-L1), and cytotoxic T-lymphocyte–associated antigen-4 immune checkpoints have received regulatory approval across a wide range of tumor types, including non–small cell lung cancer (NSCLC).

This treatment is indeed suitable for the approach to the majority of the patients who are newly being diagnosed with metastatic NSCLC is evolving rapidly.

Only for the small proportion of patients with metastatic NSCLC and genomic-driven tumors with EGFR or anaplastic lymphoma kinase (ALK)–sensitizing mutations (5%–15%), and possibly BRAF mutations and ROS rearrangements, still following the treatment that is given in initial stages remains unchanged, with specific tyrosine kinase inhibitors as the preferred therapy.

 In an attempt to aid the decision-making process, we discuss and summarize the most recent data from studies using immunotherapies for the treatment of patients with previously untreated metastatic NSCLC.

Hair Loss due to Lung cancer:

Hair loss happens as a side effect of chemotherapy and radiation on rapidly growing cells, including this cancer cells and hair follicles. Chemotherapy patients tend to lose all of their hair, while radiation patients tend to lose hair only in the area that has been affected by radiation


Preventive Measures from this cancer:

  1. Smoking is the leading reason for this cancer. It is necessary to stop smoking to prevent the chances of this cancer.
  • Test your home for radon because it can be a reason for this cancer.

Exercising regularly can help you in increasing the respiratory capacity and

The Immune system of your body.

Disclaimer : Above points given is simple informative advice only please consult with a professional or your doctor to understand every thing in a detail before applying any treatment or any diagnosis.
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