VP L3 Lung cancer Flashcards
Mortality rate of lung cancer
80% die within one year of diagnosis
Smoking is associated with …..% of LC cases
90
Risk factors other than being a smoker (5)
passive smoking asbestos radon gas previous lung disease family history
2 types of lung cancer
Which is most common?
Small cell lung cancer (20%)
Non small cell lung cancer (80%)
Describe the cells in SCLC v NSCLC
small and uniform
vs
several types (squamous cell, adenocarcinoma, large cell)
What is the role of surgery/chemo/radio in SCLC v NSCLC
SCLC - surgery has a limited role. Responds well to chemo and radio therapy.
NSCLC - sugery more often used, limited response to chemo
What is the role of surgery/chemo/radio in SCLC v NSCLC
SCLC - surgery has a limited role. Responds well to chemo and radio therapy.
NSCLC - sugery more often used, limited response to chemo
Clinical presentation of lung cancer
Persistent cough SOB/weezing Haemoptysis Chest, shoulder or back pain Weight loss Fatigue
Often diagnosed by
X-ray
>50% of patients metastatic at presentation
often initially confused with COPD
Diagnostic tests
Chest Xray
Broncoscopy and biopsy
Sputum cytology
CT scan (to assess suitability for surgery/find metstasis)
Lung function tests to establish baseline
Stages of lung cancer outline (2)
Limited stage disease – cancer is confined to one side of the chest & involved lymph nodes can be treated with radiotherapy
Extensive stage disease – cancer has metastasised to distant organs
Dont bother learning stages but
Stage I & II – primary tumour in 1 lung lobe with
lymph node involvement confined to hilar nodes
Stage IIIa – locally advanced with involvement of
mediastinal lymph nodes
Stage IIIb – locally advanced with pleural
effusion & involvement of contralateral media-
stinal lymph nodes
Stage IV – metastases to other organs
Treatment options for LC
Surgery Radio therapy Chemo Novel therapies Best supportive care
SCLC often has a good/poor responce to chemo
Good initial response then
SCLC often has a good/poor responce to chemo
Good initial response then relapse.
SCLC - if a patient is at least 6 months stable disease what do you treat them with in relapse?
The same agent
(If
What is usually 1st line regimen for SCLC
(drugs and cycle length and no of cycles(
Carboplatin + etoposide
21 days for 4 cycles
What is usually 2nd line regimen for SCLC
CAV
cyclophosphamide, doxorubicin, vincristine
Is SCLC senstive to radio therapy?
What is the problem?
When is it given?
Yes sensitive but the dose is limited as the thorax contains many sensitive vital organs
In combo with chemo in limited stage OR plalliatively