C. Bronchogenic carcinoma

C. Bronchogenic carcinoma:

 Is one of the most common visceral malignancies in male arising from the epithelium of the bronchus or bronchiole. While smoking is a major risk factor, industrial hazards, and atmospheric pollutants also play a role. 

Key Questions & Answers

1. What are gross features of the specimen?

Ans: Cut section of a specimen of a lung showing grey white mass obstructing the lumen of the bronchus. 

2.What is the most important associated  carcinogen of this condition ?

Ans: Cigarette smoke 

3. Write the microscopic features. 

Ans: Malignant squamous cells in sheets and singles. 

Keratin pearls present. 

4.Name the main types of bronchogenic carcinoma. 

Ans:i. Squamous cell carcinoma. 

ii.  Adenocarcinoma. 

iii. Small cell carcinoma. 

iv. Large cell carcinoma. 

5.Which type of lung carcinoma has a bad prognosis?

Ans: Small cell carcinoma.