NSIP is a diagnosis of exclusion, since numerous other inflammatory and fibrotic processes involving the lung may have NSIP-like areas, including hypersensitivity pneumonia, UIP, DAD, LIP, DIP, infectious processes, and aspiration pneumonia, among many others.
White-collar definition, belonging or pertaining to the ranks of office and professional workers whose jobs generally do not involve manual labor or the wearing of a uniform or work clothes. See more.
white collar refers to office work or exec. type work blue collar physical type job. This is a way of differentiating office/management jobs from jobs in trades/skilled trades, etc.