Which of the following options correctly lists modalities commonly used to diagnose and stage lung cancer?

Which of the following options correctly lists modalities commonly used to diagnose and stage lung cancer?

• A. CT chest, PET-CT
• B. Bronchoscopy, EBUS, mediastinoscopy, Chamberlain, CT-guided needle biopsy
• C. CT chest alone
• D. All of the above

Answer: (D)

Diagnosing and staging lung cancer requires both imaging to map the anatomy and tissue to confirm cancer and determine spread. CT chest gives precise details about the size, location, and invasion of the primary tumor and nearby structures. PET-CT adds a functional view, highlighting metabolically active areas that may represent nodal involvement or distant metastases, which is crucial for staging. But imaging alone doesn’t prove cancer or prove nodal status. That’s where tissue sampling comes in: bronchoscopy with biopsy provides direct access to the airways and allows tissue from central lesions for histology; EBUS with transbronchial needle aspiration targets mediastinal or hilar lymph nodes under ultrasound guidance to assess nodal involvement; mediastinoscopy is a surgical method to sample mediastinal nodes when needed; the Chamberlain approach is an older surgical route for accessing certain mediastinal areas. CT-guided needle biopsy offers a percutaneous way to obtain tissue from peripheral lesions. Because each modality contributes differently—imaging for detection and staging, and tissue sampling for diagnosis and molecular testing—the combination of imaging and invasive sampling is commonly employed. That’s why all of the listed modalities are used in practice.

Diagnosing and staging lung cancer requires both imaging to map the anatomy and tissue to confirm cancer and determine spread. CT chest gives precise details about the size, location, and invasion of the primary tumor and nearby structures. PET-CT adds a functional view, highlighting metabolically active areas that may represent nodal involvement or distant metastases, which is crucial for staging.

But imaging alone doesn’t prove cancer or prove nodal status. That’s where tissue sampling comes in: bronchoscopy with biopsy provides direct access to the airways and allows tissue from central lesions for histology; EBUS with transbronchial needle aspiration targets mediastinal or hilar lymph nodes under ultrasound guidance to assess nodal involvement; mediastinoscopy is a surgical method to sample mediastinal nodes when needed; the Chamberlain approach is an older surgical route for accessing certain mediastinal areas. CT-guided needle biopsy offers a percutaneous way to obtain tissue from peripheral lesions.

Because each modality contributes differently—imaging for detection and staging, and tissue sampling for diagnosis and molecular testing—the combination of imaging and invasive sampling is commonly employed. That’s why all of the listed modalities are used in practice.