Central histologies include Squamous cell carcinoma and Small cell

Central histologies include Squamous cell carcinoma and Small cell

• A. Central histologies include Squamous cell carcinoma and Small cell
• B. Central histologies include Adenocarcinoma
• C. Central histologies include Carcinoid
• D. Central histologies include Large cell carcinoma

Answer: (A)

Central histologies are tumors that originate near the large airways, around the trachea and main bronchi. Squamous cell carcinoma and small cell carcinoma are classic central histologies because they most often arise from the epithelium of these central airways, leading to symptoms like cough or airway obstruction. In contrast, adenocarcinoma typically develops in the peripheral lung tissue and is less associated with the central airways. Large cell carcinoma is also usually peripheral. Carcinoid tumors can occur centrally but are not as defining a pair as squamous and small cell. Therefore, the statement that central histologies include squamous cell carcinoma and small cell correctly reflects their typical central origin.

Central histologies are tumors that originate near the large airways, around the trachea and main bronchi. Squamous cell carcinoma and small cell carcinoma are classic central histologies because they most often arise from the epithelium of these central airways, leading to symptoms like cough or airway obstruction. In contrast, adenocarcinoma typically develops in the peripheral lung tissue and is less associated with the central airways. Large cell carcinoma is also usually peripheral. Carcinoid tumors can occur centrally but are not as defining a pair as squamous and small cell. Therefore, the statement that central histologies include squamous cell carcinoma and small cell correctly reflects their typical central origin.