Friday, November 25, 2022

Types of Lung Cancer

What Are The Types of Lung Cancer?


Adenocarcinomas account for up to 40 percent of cases of Lung Cancer. Although adenocarcinomas, like other lung cancers, are associated with smoking, these cancer types are often seen in non-smokers— especially in women. Most adenocarcinomas occur in the outer, or secondary lung regions. They, too, continue to spread to and beyond the lymph nodes. Adenocarcinoma in situ is a subtype of adenocarcinoma that frequently occurs in the lungs at several locations and spreads along pre-existing alveolar walls. Symptoms of Adenocarcinomas

  • Stomach pain
  • Nausea and vomiting
  • Weight loss
  • Weakness
  • Continuous bleeding
  • Low red blood cell counts
  • Yellowing of the skin and eyes

Squamous Cell Carcinoma

Earlier, squamous cell carcinomas were more common than adenocarcinomas; currently, they account for around 25 to 30 percent of all cases of Lung Cancer. Squamous cell cancers are also known as epidermoid carcinomas most commonly found in the bronchi’s central chest region. In most cases, this type of Lung Cancer stays within the lungs, spreads to lymph nodes, and grows very large, creating a cavity. Symptoms of Squamous

  • Flat sore with a scaly crust
  • A new sore or raised area on an old wound or ulcer
  • Red or rough patch inside your mouth
  • Red, raised patch or wart-like sore on or in your anus or genitals

Small Cell Carcinomas

Large cell carcinomas, also called undifferentiated carcinomas, comprise 10%-15% of all lung cancers. These cancer types have a strong propensity to spread to distant sites and lymph nodes. Symptoms of Small Cell Carcinomas

  • Chronic cough and blood coughing
  • Back, shoulder, or chest pain
  • Weakness, moderate shortness of breath or achiness


Up to 5 percent of lung cancers account for bronchial carcinoids. Such tumors are usually tiny when diagnosed and most often occur in people under the age of 30-40. Carcinoid tumors may metastasize due to cigarette smoking, and a small proportion of these Lung Cancer tumors secrete hormone-like substances. In general, carcinoids develop and spread more slowly than bronchogenic cancers, and many are identified early enough for surgical removal. Symptoms of Bronchial

  • Cough
  • Production of mucus, which can be yellowish-gray or green in color — it may also be streaked with blood sometimes
  • Fatigue
  • Shortness of breath
  • Chest discomfort