True about silicosis all except:
Ans: d -Fibrotic change can be reversed after stopping exposureSilicosis is progressive & what is more impoant is that silicotics are prone to tuberculosisThere is no effective treatment for silicosis. Fibrotic changes that have already taken place cannot be reversedNodular fibrosis, more frequent in apex & posterior border (upper pa of lung) (c.f in asbestosis fibrosis in lower half of lung)Silicotics are more prone to develop pulmonary tuberculosis (but in recent year there is doubt whether silicotics really develop T.B.)For acute silicosis, bronchoalveolar lavage may allete symptoms, but does not decrease overall moality.
Caused by exposure of silica oxide
Severe exposure- whole lung lavage may helpful in allet_ing symptoms
Fibrosis of upper lung
Fibrotic change can be reversed after stopping exposure