Lung 2 Flashcards
diffuse interstitial/restrictive disease
diffuse, chronic involvement of pulmonary interstitum reducing FEV1 and FVC
wheezing in restrictive disease?
NO- only in obstruction
no obstruction in restrictive
cause of diffuse interstitial disease
inhalation of agents that cause inflammation and lead to permanent fibrosis
Fibrosing disorders
idiopathic pulmonary fibrosis/UIP
nonspecific interstitial pneumonia
cytogenic organizing pneumonia
pathological pattern for IPF and other associated conditions
usual interstitial pneumonia (UIP)
diagnosis of exclusion
idiopathic pulmonary fibrosis (IPF)/ UIP
NSIP
main cause IPF
smoking
genetic mutations associated with IPF
TERT and TERC- telomerase
increased MUC5B secretion
pathological markers for UIP/IPF
honeycombing- widened septa
temporal heterogeneity
dense collagenous fibrous areas mixed with normal lung
stiff lungs
IPF treatment
lung transplant
causes of UIP
collagen vascular disease drug toxicity chronic hypersensitivity pneumonitis asbestosis familial idiopathic pulmonary fibrosis
radiological findings for diffuse interstitial disease
small nodules irregular lines (ground glass shadows)
causes of NSIP
collagen vascular disease hypersensitivy pneumonitis drug induced pneumonitis infection immunodeficiency
NSIP descriptors
cellular or fibrosing pattern
lack of temporal heterogeneity
46-55
which is better prognosis cellular or fibrosing pattern of NSIP?
cellular