Keywords: سی تی اسکن با وضوح بالا; cystic lung disease; diffuse lung disease; focal lung luciencies; lung cysts; pulmonary cysts; BHD; Birt Hogg Dubé; DIP; desquamative interstitial pneumonia; HRCT; high-resolution CT scan; LAM; lymphangioleiomyomatosis; LCDD; light-chain deposition disea