Pleural Disease Flashcards
what is a pleural effusion?
an abnormal collection of fluid in the pleural space
what does straw coloured pleural effusion suggest?
cardiac failure
hypoalbuminaemia
what does blood pleural effusion suggest?
trauma
malignancy
infection
infarction
what does a milky pleural effusion suggest?
empyema
what does a foul smelling pleural effusion suggest?
anaerobic empyema
what does the presence of food particles in a pleural effusion suggest?
oesophageal rupture
what are the two main types of pleural effusion?
transudate
exudate
what protein level is present in a transudate pleural effusion?
<30
name some causes of a transudate pleural effusion
heart failure cirrhosis hypoalbuminaemia atelectasis peritoneal dialysis
what protein level is present in an exudate pleural effusion?
> 30
name some possible causes of an exudate pleural effusion
malignancy
infection
pulmonary infarction
asbestos
which type of pleural effusion suggests a more serious pathology?
exudate
what is the normal pH of a pleural effusion?
7.6
what is mesothelioma?
rare malignant tumour of the lining of the lung
what increases the risk of developing mesothelioma?
exposure to asbestos
how can mesothelioma present?
breathlessness chest pain weight loss fever sweating cough
when does mesothelioma usually present?
30-40 years after asbestos exposure
how does mesothelioma present on CXR?
pleural thickening - makes the lungs look smaller
what are the three types of asbestos and which is most common?
chrysolite - common
amosite
crocidolite
what is the most dangerous type of asbestos?
crocidolite
how can mesothelioma be managed?
pleuodeses effusions radiotherapy surgery chemotherapy palliative care
what cancers can metastasise to the pleura?
lung breast upper GI lymphoma melanoma ovary
what is the median survival in pleural malignancy?
3-12 months
what score is used to predict survival in pleural malignancy?
LENT score
- LDH
- ECOG PS
- neutrophil/lymphocyte ratio
- tumour type
what is a small pneumothorax?
<2cm rim of air
what is a large pneumothorax?
> 2cm rim of airr
what is the management of a tension pneumothorax/
needle decompression in the second ICS, mid clavicular line