R ole of interleukin 4 and its receptor in clinical presentation of chronic extrinsic allergic alveolitis: a pilot study

Table 1 Diagnostic criteria for chronic EAA used at author’s institution

History of exposure to inhalation antigen	+/−
Crackles	+
DL_co	↓
BALF lymphocytosis	+/−
BALF CD4/CD8	↓/normal/↑
HRCT pattern	Centrilobular nodules
	GGO
	Mosaic perfusion
	Condensations
	Interstitial septa thickening
	Honeycombing
Histology pattern	Granuloma, OP, DIP, NSIP, UIP

BALF bronchoalveolar lavage fluid, DIP desquamative interstitial pneumonia, DL_co lung diffusing capacity for carbon monoxide, GGO ground glass opacities, HRCT high resolution computed tomography, NSIP nonspecific interstitial pneumonia, OP organising pneumonia, UIP usual interstitial pneumonia.

ISSN: 2049-6958