Pneumocystis carinii

Pneumocystis carinii • Sections of inflated left lung with lobes indicated by U(pper) and L(ower). • Old multiloculated abscess cavity indicated by blue arrows. • Line demarcates most diseased lung (majority) from small remnant of healthier lung. • Abnormal lung is whitish, glistening and feels firm and airless. (Description By:Melinda Sanders, M.D. ) (Image Contrib. by: UCHC )