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 Indian J Med Microbiol  
 

Figure 3 (A-E): Sarcoidosis: Parenchymal nodules. (A) Chest X-ray (CXR) showing bilateral perihilar interstitial nodules, predominantly in upper and mid zones (white arrows). (B, C) Magnified axial high resolution computed tomography (HRCT) images (lung window) in another patient shows typical perilymphatic distribution of micronodules. Discrete rounded well-defined micronodules seen along right bronchovascular bundle (thin arrow), subpleural interstitium (curved arrow), and interlobar fissure (dashed arrows). (D) Magnified axial HRCT image (at lower level) shows sharply defined micronodules along left interlobular septa (thick arrows) (E) sarcoid macronodules. Magnified axial HRCT image (lung window) showing macronodules with irregular margins and multiple peripheral micronodules in left upper lobe representative of coalescent granulomas (dashed arrows). Note discrete perilymphatic nodules along left interlobar fissure

Figure 3 (A-E): Sarcoidosis: Parenchymal nodules. (A) Chest X-ray (CXR) showing bilateral perihilar interstitial nodules, predominantly in upper and mid zones (white arrows). (B, C) Magnified axial high resolution computed tomography (HRCT) images (lung window) in another patient shows typical perilymphatic distribution of micronodules. Discrete rounded well-defined micronodules seen along right bronchovascular bundle (thin arrow), subpleural interstitium (curved arrow), and interlobar fissure (dashed arrows). (D) Magnified axial HRCT image (at lower level) shows sharply defined micronodules along left interlobular septa (thick arrows) (E) sarcoid macronodules. Magnified axial HRCT image (lung window) showing macronodules with irregular margins and multiple peripheral micronodules in left upper lobe representative of coalescent granulomas (dashed arrows). Note discrete perilymphatic nodules along left interlobar fissure