I.l I - Interstitial/parenchymal lung disease
I.l - Diffuse alveolar damage (DAD) (see alsoo under IIb and XVf) I.w I - Interstitial/parenchymal lung disease
I.w - Rapidly progressive ILD/pulmonary fibrosis (Hamman-Rich syndrome) I.y I - Interstitial/parenchymal lung disease
I.y - Progression, acceleration or exacerbation of preexisting ILD/fibrosis VII.f VII - Mediastinal involvement
VII.f - An enlarged or dense thymus

I.d I - Interstitial/parenchymal lung disease
I.d - Organizing pneumonia pattern (an area or areas of consolidation on imaging) I.t I - Interstitial/parenchymal lung disease
I.t - Pneumoconiosis (silicosis, talcosis...) II.b II - Pulmonary edema - Acute lung injury - ARDS
II.b - ARDS - Acute lung injury II.f II - Pulmonary edema - Acute lung injury - ARDS
II.f - Hypoxemia, low oxygen saturation (may occur in isolation) IV.c IV - Airway involvement
IV.c - Obliterative bronchiolitis (a pattern consistent with) (see also IVn, XVx) IV.i IV - Airway involvement
IV.i - Foreign body aspiration bronchiolitis IV.m IV - Airway involvement
IV.m - Bronchial stenosis/stricture V.c V - Pleural and/or pericardial involvement
V.c - Pleural thickening V.r V - Pleural and/or pericardial involvement
V.r - Pleural mass or masses VI.b VI - Pulmonary vasculopathies
VI.b - Pulmonary arterial hypertension VI.g VI - Pulmonary vasculopathies
VI.g - Foreign body pulmonary vasculopathy (Excipient lung disease) VII.f VII - Mediastinal involvement
VII.f - An enlarged or dense thymus VII.n VII - Mediastinal involvement
VII.n - Mediastinal talcoma X.f X - Systemic/Distant conditions, syndromes and reactions
X.f - Anaphylaxis-Anaphylactoid reaction (can be fatal) XI.b XI - Miscellaneous
XI.b - Chest pain (acute or subacute), lone or prominent XI.u XI - Miscellaneous
XI.u - Chest pressure/discomfort XV.e XV - Pathology
XV.e - Path: ILD with a granulomatous component (see also Im) XV.q XV - Pathology
XV.q - Path: Foreign body deposits/granulomatous reaction XV.s XV - Pathology
XV.s - Path: Pneumoconiosis (silicosis, talcosis, talcoma) XV.ag XV - Pathology
XV.ag - Path: Foreign body embolism, microangiopathy, vasculopathy XV.da XV - Pathology
XV.da - Path: Birefringent particles in lung tissue and/or cells XVI.w XVI - Imaging
XVI.w - Imaging: Lung nodule or nodules XVI.ae XVI - Imaging
XVI.ae - Imaging: A pattern similar to pneumoconiotic progressive massive fibrosis (PMF) XVI.bm XVI - Imaging
XVI.bm - Imaging: Avid pleural uptake on PET-scan XVIII.i XVIII - Distinctive patterns - 'Eye-catchers'
XVIII.i - Eye-catcher: Tracer-avid pleural area or areas on PET-CT XIX.k XIX - Cytological, biochemical features of/in BAL, pleural fluid or FNA
XIX.k - BAL: Talc crystals in macrophages or lying free in BALF