CHEE-123 — 2023 RSNA Identified for RadioGraphics
NTM: What the Pulmonologist Wants to Know
Chest Imaging
CHEE | Chest Imaging Education Exhibits
Presented on Sunday, November 26, 2023 9:00 AM
Author: Geraldine Brusca-Augello, DO
*Teaching Points: Classic and non-classic NTM have characteristic distribution and morphology of bronchopulmonary disease with variability in part associated with the presence of underlying lung disease, as well as other factors. Radiologists may be the first to suggest pulmonary NTM in patients that are asymptomatic or with nonspecific constitutional symptoms leading to earlier diagnosis and management. Baseline CT description should include description of disease extent, fibrocavitary or nodular bronchiectatic type, presence of atelectasis, cavities, and fibrosis. Pulmonary NTM infections are usually indolent/slowly progressive with CT findings waxing and waning over time. Follow-up imaging is performed to assess interval improvement or progression of the airways disease, cavities, nodules and consolidation. The focal mass like/nodular NTM type can pose diagnostic challenges, and must be distinguished from other infections and malignancy. Development of high-attenuation mucous (HAM) in bronchiectatic airways is pathognomonic for superimposed ABPA. New or growing nodule should raise concern for neoplasm. NTM should be also be considered as an allergen to incite nonfibrotic hypersensitivity pneumonitis.
*Table of Contents/Outline:
Epidemiology.
Diagnostic criteria for pulmonary NTM.
CT Manifestations of pulmonary NTM.
What the Radiologist needs to know.
What the Pulmonologist wants to know.
Disclosure: G. Brusca-Augello: Consultant; VinBrain Joint Stock Company Hanoi, Vietnam.
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