Lung markings of this type, located in the peripheral parts of the lungs, with extension to the pleura could indicate early fibrosis, a type of lung scarring, but need not be indicative of any disease or, if disease, need not be progressive. The pulmonary specialist will probably order a CT scan of the lungs to better characterize these findings and will then be able to advise you whether or not further diagnostic testing is warranted.
As noted, above, these findings need not be indicative of any lung disease and this would be even more likely if your lungs were clear, with no sounds called rales, when listened to with a stethoscope.
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