Lung cancers Flashcards
What are the main subtypes of Non small cell lung carcinoma ? (3)
- Adenocarcinoma
- Squamocellular
- Large cell carcinoma
What are the frequent mutations of lung adenocarcinoma ?
- Point mutations of small deletions of EGFR (exons 18, 19, 20, and 21)
- Translocation of ALK with numerous partners
Type of lung cancer that are mostly associated with mutations of oncosuppresors ?
SCLC (Rb, p53)
What risk factor is responsible of 90% of pulmonary tumors?
Cigarette smoking
What is the most important exam to do for a px with suspected lung cancer?
Chest CT
How do we take biopsy in central lung cancer?
Bronchoscopy
How do we take biopsy in peripheral lung cancer?
FNAB with CT guidance
Which histotype among the lung cancers is considered to be resistant to chemiotherapy and hard to treat?
Squamocellular lung carcinoma
What is the percentage of EGFR mutation in NSCLC patients?
17-20%
How do we proceed with treatment in stage II lung cancer that has positive lymph nodes ?
Adjuvant therapy
What is the classical chemotherapy used for lung cancer ?
Derivatives of Cisplatin and carboplatin
what lung cancer patients will be contraindicated cisplatin ?
Renal insufficient patients, it’s nephrotoxic
and Cardiopathic patients (risk of overload, administered with 2L of water)
What is the toxicity of Carboplatin?
Less nephrotoxic than the cisplatin, but it’s myelotoxic
What is the target of Bevacizumab ?
targets both endothelial and non-endothelial cells
In what isotype of lung cancer we shouldn’t administer Bevacizumb?
Squamous CC
in what type of lung cancer and population we find the TKI highly effective ?
Women
Non-smokers, with adenocarcinoma
what is the mutation that causes the resistance for the TKI treatment in lung cancers?
T790M of the EGFR gene
What drugs are available for lung cancer, targeting the specific mutation T790M of EGFR?
Osimertinib
What translocation is common in lung cancer in younger patients, non smokers, with adenocarcinoma ?
ALK-EML4
What are The most commonly used immunotherapies for lung cancer ?
Anti PD-1 / PD-L1
Drug for ALK translocations in lung cancer?
Crizotinib
Drug for BRAF mutation in lung cancer?
dabrafenib