Pulmonary Langerhans Cell Histiocytosis & common cystic lung diseases | Radiology Board Review Case

CT appearance of Pulmonary LCH and approach to cystic lung diseases.
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Pulmonary LCH is a rare disease found almost exclusively in cigarette smokers.
Radiologic findings of pulmonary LCH include:
- Nodules, usually smaller than 1 to 5 mm, centrilobular and peribronchiolar, may be cavitary, may be seen in association with cysts.
- Thick-walled or thin-walled cysts.
- Progression over time from nodules to thick-walled cysts to thin- walled cysts.
- Upper lobe predominance in size and number of nodules or cysts, costophrenic angles spared.
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I'm Amar Udare, a radiology fellow training at McMaster University Canada. I have a passion for teaching and I believe in #FOAMrad - Free Open Access Medicine - Radiology.
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⏱Time Stamps:
0:00 - Introduction.
0:40 - Revision of previous case discussion.
2:45 - PACS-based case images.
8:40 - Case findings of Pulmonary Langerhans cell histiocytosis on Computed Tomography.
13:15 - Companion case and approach to imaging of cystic lung disease
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[@RadioGyan]

Time stamps: 0:40 - Revision of previous case discussion. 2:45 - PACS-based case images. 8:40 - Case findings. 13:15 - Companion case and approach to imaging of cystic lung disease. Full post and further reading: radiogyan.com/videos/pulmonary-langerhans-cell-histiocytosis/ To join live: ​t.me/radiogyan and radiogyan.com/recommends/radi..

[@coldmagnet]

Very solid. More classic appearances please

[@RadioGyan]

Thank you for your feedback!

[@drkukku1981]

Very nice case discussion

[@RadioGyan]

Glad you liked it!

[@nasinusman2153]

Very simple yet very informative sir. Thanks a lot 😊

[@RadioGyan]

Most welcome

[@hamid4466]

Thanks, helped me revise cystic lung diseases thoroughly

[@RadioGyan]

Glad that you liked it!

[@rabiababar5496]

Sir kindly tell difference between hrct n ct chest,thanks

[@jyotshnabhowmik6941]

Thank yu sir

[@RadioGyan]

Welcome

[@madhavigupta7747]

I am a radiology resident. I would like to take up a case discussion if possible sir. Thank u

[@RadioGyan]

Please join our Telegram Group and message me. Here is the link : t.me/radiogyan Alternatively you can message me at over email [e-mail] but it will difficult to coordinate. Thanks

[@sakshiagarwaal3557]

Does cystic or cavitatory mets mean the same ?

[@RadioGyan]

No. The term cyst is used to mean a clearly defined air-containing space surrounded by a relatively thin (≤4 mm) wall. In contrast, the term cavity is used to refer to an air-containing lesion with a relatively thick (>4 mm) wall or within an area of a surrounding infiltrate or mass.

[@drkukku1981]

Tuberous sclerosis

[@RadioGyan]

Yes!

[@shruti2884]

Sir are there tib or centrilobular nodules in the first case?

[@RadioGyan]

A few of them are centrilobular.

[@dr.alqurieshidr1450]

Final dx.. LCH

[@RadioGyan]

Yes!