TB
Sarcoidosis
Silicosis
Hypersensitivity Pneumonitis
Langerhans Cell Histiocytosis
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
CT 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-8mm
CT scan 9 months later shows improvement in the thickened walls of the cysts but maintenance of diffuse cystic changes predominantly in the upper lobes
A CT scan done 2 years later shows no significant change in the diffuse bilateral cystic changes, dominant in the upper lobes and consistent with Langerhans histiocytosis
Ashley Davidoff MD
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
CT 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-8mm
CT scan 9 months later shows improvement in the thickened walls of the cysts but maintenance of diffuse cystic changes predominantly in the upper lobes
A CT scan done 2 years later shows no significant change in the diffuse bilateral cystic changes, dominant in the upper lobes and consistent with Langerhans histiocytosis
Ashley Davidoff MD