Figure 9a. PLCH in a 35-year-old woman with a history of smoking who presented with a 3-month history of fever, chills, night sweats, weight loss, and nonproductive cough. Posteroanterior (a) and posteroanterior collimated (b) radiographs show bilateral coarse reticular areas of opacity and cystic changes that predominantly involve the upper and middle lung zones and spare the lung bases.