CXR Reticulonodular Pattern 53-year-old female with nicotine dependence presents with dyspnea and cough CXR (PA and Lateral) shows bilateral and extensive reticular nodular changes slightly more prominent in the upper lung zones LANGERHANS HISTIOCYTOSISRETICULONODULAR PATTERN53-year-old female with nicotine dependence presents with dyspnea and coughCXR (PA and Lateral) shows bilateral and extensive reticular nodular changes slightly more prominent in the upper lung zonesAshley Davidoff MD LANGERHANS HISTIOCYTOSIS53-year-old female with nicotine dependence presents with dyspnea and coughCXR (PA and Lateral) shows bilateral and extensive reticular nodular changes slightly more prominent in the upper lung zonesAshley Davidoff MD CT CORONAL VIEW – UPPER ZONES MORE AFFECTED THAN LOWER LUNG ZONES – LANGERHANS HISTIOCYTOSISCT scan from 16 months prior showed multiple relatively thick-walled cysts predominantly in the upper lobes. The cysts are round and air filled large and are between 5mm-8mmAshley Davidoff MD