unilateral lobar emphysema

u·ni·lat·e·ral lo·bar em·phy·se·ma

radiographically hyperlucent lobe (or lung) secondary to bronchiolitis obliterans, with air trapping.

u·ni·lat·e·ral lo·bar em·phy·sema

(yū'ni-lat'ĕr-ăl lō'bahr em'fi-sē'mă)
A state in which the roentgenographic density of one lung (or one lobe) is markedly less than the density of the other(s) because of the presence of air trapped during expiration.
Synonym(s): Macleod syndrome, Swyer-James syndrome (1) .
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