ILD Flashcards
Normal number of Macrophages in BAL
> 85%
Normal number of Lymphocytes in BAL
10-15%
Normal number of Eosinophils in BAL
<1%
IPF number of Eosinophils in BAL
<10%
IPF number of Lymphocytes in BAL
<30%
PL-12 positive autoantibody
Commonly seen in patient with interstitial lung disease without evidence of myositis
Positive anti-Jo-1 antibody
Patient have concurrent ILD 90% of the time
Myositis-specific autoantibodies
Antisynthetase antibodies (30% of patients with PM and DM) Anti-Jo-1 and anti-PL12 antibodies may occur in patient with ILD but without overt myositis
Anti-Ku antibodies
Associated with overlap syndromes with myositis and scleroderma
Anti-MDA-5 autoantibodies
Associated with dermatomyositis without myositis but with progressive ILD
Anti-SRP antibodies
Associated with severe necrotizing myopathy
Lymphocytic interstitial pneumonia associated with
HIV
Sjogrens
Cystic and interstitial lung disease
SEATS upper lobe interstitial fibrosis
Silicosis Eosinophilic granuloma Ankylosing spondylitis TB Sarcoidosis
Monday fever
Byssinosis
Byssinosis
Pneumoconniosis from cloth (hemp, flax, cotton)
Berryliosis
Like sarcoidosis, chronic noncaseating granulomatous disease
Berrylium testing
Beryllium lymphocyte proliferation test (serum)
CD4:CD8 normal
2
CD4:CD8 low
Hypersensitivity pneumonitis
CD4:CD8 high
Sarcoidosis
Pulmonary alveolar microlithiasis (PAM) characteristic findings
Widespread intraalveolar accumulation of minute calcium phosphate deposits
Pulmonary alveolar microlithiasis (PAM) etiology
Mutation in SLC34A2 gene = dysfunctional type 2 alveolar cells
Telomere genes leading to IPF or familial pulmonary fibrosis
TERT, TERC
MUC5b
Increased risk for pulmonary fibrosis compared to telomere pathway but improved survival
Senescence
Programmed cell death (associated with telomeres)
Cause of hypercalcemia in sarcoidosis
1-alpha-hydroxylase activity in the granulomas that activate 25-hydeoxyvitamin d3 increasing guy absorption of calcium
Vascular endothelial growth factor D (VEGF-D)
Elevated in LAM
LAM presentation
Dyspnea
Pneumothorax
Could have chylous pleural effusion
LAM may occur with
Tuberous sclerosis complex
Renal angiolypoma
Chylous effusion
LAM treatment
Sirolimus
Diffuse cystic lung disease
LAM
Birthings-Hogg-Dube
Lymphocytic interstitial pneumonia
Langerhans
Langerhans typical findings
Lung cysts and nodules
Associated with smoking
Birt-Hogg-Dube (BHD) typical findings
Skin fibrofolliculomas
Risk for renal adenocarcinoma
Birt-Hogg-Dube (BHD) epidemiology
Autosomal dominant
Birt-Hogg-Dube (BHD) diagnosis
Folliculin gene testing
Nintedanib MOA
Tyrosine kinase inhibitor
Langerhan’s cells staining
S-100 protein
CD1a positive
Therapy for Langerhan’s
Stop smoking
Cladribine
LAM staining
HMB-45 antibody