TNM Classification in Lung Cancer Quiz

What does the TNM classification apply to in lung cancer?

• The patient's age

• The anatomic extent of the tumor

• The patient's lifestyle

• The treatment method

How is the ninth edition TNM classification of lung cancer different from the eighth edition system?

• N2 is subdivided into single- and multistation N2, and M1c is subdivided into single- and multiorgan system M1c.

• N2 is combined into a single category, and M1c is removed.

• T and N categories are merged into a single category.

• The classification remains unchanged from the eighth edition.

What does the prefix 'c' in the TNM classification stand for?

• Pathologic

• Clinical

• Restaging

• Recurrence

What does the prefix 'p' indicate in the TNM classification?

• Clinical assessment

• Pathologic assessment

• Restaging after treatment

• Stage at time of recurrence

What does EBUS-TBNA stand for?

• Endobronchial ultrasound-transbronchial needle aspiration

• Endoscopic ultrasound-transbronchial needle aspiration

• Endoscopic ultrasound-transbronchial nasal aspiration

• Endobronchial ultrasound-transbronchial nasal aspiration

How is the solid component size measured in the TNM classification?

• On thin CT scan images

• Using MRI scans

• Through blood tests

• By physical examination

What is the classification for a Pancoast tumor if it involves vertebral bodies?

• T3

• T4

• T1

• T2

Which of the following describes T1c in the classification of primary tumors?

• Tumor > 5 cm but ≤ 7 cm in greatest dimension

• Tumor > 2 cm but ≤ 3 cm in greatest dimension

• Tumor ≤ 1 cm in greatest dimension

• Tumor > 3 cm but ≤ 4 cm in greatest dimension

What does N0 indicate in the classification of regional lymph node involvement?

• Metastasis in ipsilateral pulmonary or hilar lymph nodes

• No regional lymph node metastasis

• Metastasis in supraclavicular or scalene nodes

• Metastasis in ipsilateral mediastinal nodes

What is indicated by M1a in the classification of distant metastasis?

• No distant metastasis

• Single extrathoracic metastasis

• Malignant pleural or pericardial effusion

• Multiple organ systems involved