Lung cancer Flashcards
(26 cards)
How common is lung cancer?
3rd most common cancer
What is paraneoplastic syndrome?
- Non metatstatic systemic effects that accompany malignant disease
- clubbing, weight loss, weakness, hyponatremia, hypercalcemia
Most common lung cancer
Adenocarcinoma - 35%
then squamous, small cell, large cell
What is the worst type of lung cancer?
Small cell
What hormones do squamous cancers produce?
PTH
What hormones do small cell cancers produce?
ACTH
What are the oncogenes and tumour suppressor genes associated with small cell?
- Oncogenes – myc
- Tumour Suppressor Genes – p53, Rb, 3p
What are the oncogenes and tumour suppressor genes associated with non small cell lung cancer?
- Oncogenes – myc, K-ras, her2(neu)
- Tumour suppressor genes – p53, 1q, 3p, 9p, 11p, Rb
How is lung cancer staged?
TNM
What does TNM stand for?
Tumour (size), nodes metastasis
What are the ways of investigating lung cancer?
Bronchoscopy, mediastinoscopy, ct scan, pet scan (mets)
What is the mediastinum?
The space between the 2 lungs in the chest cavity
What are the 2 layers of pleura?
Visceral and parietal
What is a pleural effusion
water on the lungs
What are the 2 types of pleural effusion?
transudate and exudate
What is a transudate pleural effusion?
<30g/l - low proteins and lipids in solution
What is exudate pleural effusion?
Due to inflammation >30g/l. High in protein and lipids
What is mesothelioma?
uncommon malignant tumour - in lining of lung. due to asbestos exposure
What are the symptoms of mesothelioma
breathlessness, chest pain, wt loss, fever, sweat, cough
What are the 4 treatments for lung cancer?
Surgery, Chemo, Radiotherapy, Palliative
When can surgery be used in relation to lung cancer
When the tumor is localised
When can chemo be used in relation to lung cancer
Better for small cell.
Whats bad about chemo for the patient?
Side effects = hair loss, pulm fibrosis, tiredness, nausea, bone marrow suppression (anemia + infection)
When can radiotherapy be used in relation to lung cancer
Non small cell cancer