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. 2016 Jul 1;95(26):e3978. doi: 10.1097/MD.0000000000003978

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Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved.

This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0, where it is permissible to download, share and reproduce the work in any medium, provided it is properly cited. The work cannot be changed in any way or used commercially. http://creativecommons.org/licenses/by-nc-nd/4.0

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A 61-year-old asymptomatic woman with a mass-like consolidation. A, Contrast-enhanced CT showed a mass-like consolidation with poor contrast enhancement with a mean attenuation value of 39 HU. B, Lung window CT image showed an irregular border and ill-defined ground-glass opacity adjacent to the mass-like consolidation. C, CT-guided PCNB using a 22-gauge Westcott needle showed chronic granulomatous inflammation. Culture of PCNB aspirates revealed the presence of Mycobacterium intracellulare organisms. D, Follow-up CT obtained 2 years after anti-MAC antibiotic treatment showed complete resolution with minimal fibrotic change (arrow). CT = computed tomography, MAC = Mycobacterium avium, PCNB = percutaneous needle aspiration biopsy.