13
ILDs with cysts and/or
airspace filling
Sarcoidosis
Exposure related
Langerhan's cell
histiocytosis (LCH)
Lympho-
proliferative
LAM
Medication
Others
Radiation
Illicit drugs
Post infectious
Respiratory
bronchiolitis
interstitial lung
disease (RB-ILD)
c
Pulmonary
alveolar
proteinosis (PAP)
a
e committee acknowledges that eosinophilic pneumonia of
unknown cause was not included in the IIP classification.
b
Myositis includes polymyositis/dermatomyositis (PM/DM)
anti-synthetase syndrome which may be amyopathic.
c
While RB-ILD is acknowledged to be a consequence of
exposure to cigarette smoke in virtually all patients with RB-
ILD, RB-ILD and DIP oen coexist. Although DIP is also
related to exposure to cigarette smoke in majority of patients,
DIP is also seen in some patients with CTD, without exposure
to cigarette smoke, and without a known cause.
HP
Occupational
• Asbestosis
• Silicosis
• Coal miner
• Berylliosis
and many
others
