Lady Windermere Syndrome (MAC infection) | Radiology Board Review Case

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CT imaging appearance of Pulmonary Mycobacterium Avian Complex (MAC) infection (Lady Windermere Syndrome) and approach to imaging of bronchiectasis.
- Occur in patients with a pre-existing pulmonary disease (COPD) or those with depressed immunity.
- Predilection for older women who deliberately suppress the cough reflex (Lady Windermere syndrome).
- Can cause right middle lobe syndrome - chronic right middle lobe collapse without obstructing lesion.
- Patients with MAC infection, unlike those with pulmonary tuberculosis, are not contagious.
- Subtypes:
- Upper lobe fibrocavitary pattern/cavitary form (classic infection)
- Nodular bronchiectatic form/bronchiectatic form (non-classic infection) - RML / Lingula
- Mixed form
- Hot tub lung - Imaging appearances can mimic a subacute hypersensitivity pneumonitis.
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⏱Time Stamps:
0:00 - Introduction
0:42 - PACS based case images.
1:40 - Imaging findings on Computed Tomography.
2:50 - Review of case description.
4:42 - Imaging of pulmonary mycobacterium avian complex infection
7:02 - Types of bronchiectasis
9:15 - Imaging signs in bronchiectasis
10:05 - Companion bronchiectasis
12:05 - Common causes of bronchiectasis.
14:50 - QnA
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⏱Time Stamps: 0:00 - Introduction 0:42 - PACS based case images. 1:40 - Imaging findings on Computed Tomography. 2:50 - Review of case description. 4:42 - Discussion of imaging of pulmonary mycobacterium avian complex infection (Lady Windermere Syndrome). 7:02 - Types of bronchiectasis 9:15 - Imaging signs in bronchiectasis 10:05 - Companion bronchiectasis 12:05 - Discussion of common causes of bronchiectasis. 14:50 - Discussion of Queries More radiology content: radiogyan.com

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