If a PET scan in the mediastinum is negative, what is the recommended next step in management?

If a PET scan in the mediastinum is negative, what is the recommended next step in management?

• A. Proceed directly to surgery
• B. Mediastinoscopy
• C. Obtain further CT imaging
• D. Initiate chemotherapy

Answer: (A)

A negative PET in the mediastinum lowers the likelihood of nodal metastasis but does not rule it out completely. Before moving to definitive surgery, it’s important to obtain tissue from mediastinal lymph nodes to confirm nodal status. This tissue confirmation is usually achieved with invasive mediastinal staging, such as mediastinoscopy or endobronchial ultrasound-guided needle aspiration (EBUS-TBNA). If the biopsy shows no nodal disease, you can proceed with surgery; if it shows nodal involvement, the treatment plan is adjusted accordingly (often avoiding or modifying upfront curative surgery). Relying on CT imaging alone or starting chemotherapy without histologic confirmation is less appropriate, and proceeding directly to surgery without mediastinal tissue confirmation is not the preferred standard in most contemporary pathways.

A negative PET in the mediastinum lowers the likelihood of nodal metastasis but does not rule it out completely. Before moving to definitive surgery, it’s important to obtain tissue from mediastinal lymph nodes to confirm nodal status. This tissue confirmation is usually achieved with invasive mediastinal staging, such as mediastinoscopy or endobronchial ultrasound-guided needle aspiration (EBUS-TBNA). If the biopsy shows no nodal disease, you can proceed with surgery; if it shows nodal involvement, the treatment plan is adjusted accordingly (often avoiding or modifying upfront curative surgery). Relying on CT imaging alone or starting chemotherapy without histologic confirmation is less appropriate, and proceeding directly to surgery without mediastinal tissue confirmation is not the preferred standard in most contemporary pathways.