This is a lengthy, poorly constructed and illogical statement/question. Breaking it down into various parts will go some way towards providing you with information.
- BASAL PLEURAL FLUID
Basal pleural fluid is a collection of fluids around the lung which causes breathing problems and chest pains, if not diagnosed early and properly this can develop into a major infection. These are detected by radiology which also picks up the pattern and distribution of the fluids, the scan will detect as little as 10ml of fluid.
- AIRSPACE DISEASE
Air space lung disease is different to basal pleural fluid as it relates to air that is trapped between the lung and chest cavity. This can sometimes cause a collapsed lung. Like fluids, having air around the lung is dangerous and has an impact on breathing. There can be various causes of this all relating to a weakening of the lung and can happen in people who would normally consider themselves to be in a generally healthy condition. - SYMPTOMS
Again like most lung related conditions a shortness of breath or tightness in the chest are early signs of air space disease, a dry cough or breathing problems can also act as an early warning. - TREATMENT
An x-ray will pinpoint the exact nature and extent of the condition, listening to the chest through a stethoscope can also detect irregularities as well as standard blood tests. In most cases some sort of surgery will be required to treat the condition, this can involve a small needle and syringe to remove the air or in more advanced cases a chest tube or valve may have to be inserted to restore normal conditions.