Non-Small Cell Lung Cancer Flashcards
T stage for NSCLC
T1a: <1 cm
T1b: 1-2 cm
T1c: 2-3 cm
T2a: 3-4 cm
T2b: 4-5 cm
T3: 5-7 cm
T4: >7 cm or Local invasion
IHC findings for adenocarcinoma
TTF+
Cytokeratin7+
Cytokeratin 20-
IHC findings of squamous cell carcinoma
p63+
p40+
What is a simplified way to think of stage I NSCLC?
Tumor <4 cm without LN
What is a simplified way to think of satge II NSCLC?
With peribronchial LN+ (N1)
What is a simplified way to think of tage III NSCLC?
Contralateral LNs, or mediastinal LNs (N2/N3)
Single digit thoracic LN stations are N_?
N2
Double digit LN stations are N_?
N1
What LNs are classified as N3?
Contralateral LNs or supraclavicular
What LN stations are classified as N1?
Double digit LNs
What LN stations are classified as N2?
Single digit LNs (mediastinal LNs)
What is adequate cardiopulmonary reserve for surgery?
> 40% post-op predicted FEV-1 and DLCO
For patients with <2 cm NSCLC and N0. What is the preferred surgery?
Sublobar resection (segmentectomy or wedge resection)
What is the preferred definitive treatment option for patients with stage I NSCLC who decline surgery?
SBRT
What are predictors of poor outcomes for surgical NSCLC resection? (2)
Delayed surgery >12 weeks
R1+ surgical resection
Who should get adjuvant chemotherapy?
Stage II or III
(T2b or higher, or N+)
Preferred adjuvant chemotherapy regimen for PD-L1 negative adenocarcinoma?
Cisplatin + Pemetrexed
Preferred adjuvant chemotherapy regimen for PDL-1 negative squamous cell carcinoma?
Cisplatin + Docetaxel (or taxotere)
What is the difference in outcomes between neoadjuvant and adjuvant chemotherapy?
Magnitude of survival difference is the same
What is the indication for adjuvant atezolizumab?
PDL1 >1% stage II-III
What is the indication for adjuvant pembrolizumab?
Any PD-L1
Stage I-III
What chemoimmunotherapy regimen is approved in the neoadjuvant setting?
Platinum doublet (including carbo) + Nivo
–Approved for any PD-L1 level
Chemotherapy + nivolumab in the neoadjuvant setting benefits what patient subpopulations the most?
PD-L1+ (especially >50%)
Stage III
Indications for adjuvant osimertinib?
EGFR ex19del (or ex21 L868R but less effective)
Stage IB-IIIA
What is the use of post-operative RT?
small reduction in mediastinal recurrence, but small increase in death rate actually
Standard treatment for stage IIIA resectable NSCLC?
ChemoRT + Durvalumab
(Cis + Pem for non-squamous)
(EP or Carbo/Taxol for squamous)