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secondary tuberculosis

n.
  1. Tuberculosis occurring in adults and characterized by lesions near the apex of an upper lobe of the lung that may cavitate or heal with scarring; it may result from reinfection with the tubercle bacillus or from reactivation of a dormant endogenous infection.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.