Charles Leduc, MD Profile
Charles Leduc, MD

@thoracicpath

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838
Following
119
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50
Statuses
319

Thoracic pathologist, University of Montreal Health Center

Joined October 2019
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@thoracicpath
Charles Leduc, MD
4 years
Hi all! So we all know about constrictive bronchiolitis, but can it happen in large airways? Below is post-SBRT obliterative bronchitis of LLL with secondary necrotizing granulomatous consolidation - awaiting stains but betting on NTM. A sort of (non) middle lobe syndrome!
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@thoracicpath
Charles Leduc, MD
4 years
RT @yro854: Do you recognize these seed-derived storage cells (images courtesy of @oreoimc)? See the latest publication on these cells and….
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@thoracicpath
Charles Leduc, MD
4 years
Bag of worms. Hydrophilic polymer embolisation with secondary thrombosis. This is a thrombectomy specimen from the right femoral artery in a patient undergoing peripheral vascular surgery. The guidewires are coated in this material that can occasionally embolize. Yikes!
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@thoracicpath
Charles Leduc, MD
4 years
Thanks to all who engaged! Although uncommon, chronic LCH can lead to severe secondary pulmonary HTN which is what we see here. A spectrum of arterial lesions, including plexiform, dilatation, and medial hypertrophy. Wishing the patient a new lease on life with new lungs!
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@thoracicpath
Charles Leduc, MD
4 years
!
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@thoracicpath
Charles Leduc, MD
4 years
Explants from woman in her mid 40s. Clinical history on req: pulmonary hypertension. IHC is CD1a. Unifying diagnosis?
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@thoracicpath
Charles Leduc, MD
4 years
RT @ariella8: #Pulmpath #Thoracicpath #Pathbugs .Excited to share unusual case ,Male 60s ,3.8 cm lung mass ,Bx sent as suspected malignancy….
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@thoracicpath
Charles Leduc, MD
4 years
RT @mreyesm: We have lost a giant of #Pathology and #LungPath #PulmonaryPath. Dr. Sam Yousem, an admired colleague and friend died yesterd….
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@thoracicpath
Charles Leduc, MD
4 years
RT @Al_Jauregui_HVH: Barcelona hospital performs first successful transplant on patient with Covid-ravaged lungs in Spain .
catalannews.com
51-year-old with no underlying conditions had been on life support for four months
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@thoracicpath
Charles Leduc, MD
4 years
RT @VHNguyenMD: - Lung development stage?.Canalicular Lung (16-25 WGA).- Is it perinatal pneumonia?.Aspirated amniotic exudate.- What are p….
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@thoracicpath
Charles Leduc, MD
4 years
RT @VHNguyenMD: For #PathResident .Lung section 20WGA - premature labor, APGAR 1-1-1, no resuscitation: .- Lung development stage?.- Is it….
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@thoracicpath
Charles Leduc, MD
4 years
RT @SansanoValero: Usual Interstitial Pneumonia shows peripheral, lower predominant fibrosis in the #grosspath by @_Romo_Navarro Microscop….
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@thoracicpath
Charles Leduc, MD
4 years
RT @SansanoValero: True Thymic Hyperplasia in a 30 yo. Enlargement of normal thymus. Thymic cortices & medullae are well defined. Interstit….
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@thoracicpath
Charles Leduc, MD
4 years
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@thoracicpath
Charles Leduc, MD
4 years
A huge thank you to all who engaged! As most of you surmised - this is a glomus tumor. As @RessChimes stated "round round, same same!" Those features + intimate relationship with vessel walls + smooth muscle markers = GT! Unusual in the trachea!.
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@thoracicpath
Charles Leduc, MD
4 years
The pictures in the previous tweet are most suggestive of :.
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@thoracicpath
Charles Leduc, MD
4 years
Young woman, endo tracheal lesion. What's your vote?
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@thoracicpath
Charles Leduc, MD
4 years
RT @mreyesm: #PediPath #pulmpath 4 YO. Differential diagnosis? IHC you would suggest? #pathboards
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@thoracicpath
Charles Leduc, MD
4 years
RT @smlungpathguy: This material was removed from a bronchus. Can you answer this in one word? This finding is nearly always seen in patien….
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