Derek Tsang
@dtsang.ca
📤 329
📥 173
📝 54
Radiation Oncologist
#RadOnc
Princess Margaret Cancer Centre 🇨🇦 | Associate Professor UofT | he/him
Thank you to the
@torontosymphony.bsky.social
for visiting Princess Margaret Cancer Centre and playing music 🎶 for our
@radmedpm.bsky.social
and solid tumour cancer patients! What an uplifting event — Happy holidays ❄️ (picture taken with permission)
25 days ago
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reposted by
Derek Tsang
AZ Faust
about 1 month ago
The biggest clue to cranks that there is no vaccine conspiracy is that Doctors and Scientists continue to vaccinate their own children at record rates.
add a skeleton here at some point
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www.cbc.ca/news/investi...
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Ontario's multimillion-dollar deal with American health clinics | CBC News
An exclusive CBC data analysis has found that since 2018, Ontario has spent over $200 million sending patients to U.S. clinics for procedures unavailable in Canada. The biggest expenditure under the p...
https://www.cbc.ca/news/investigates/ontario-millions-us-treatments-1.7643753
3 months ago
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Traffic shouldn’t come at the cost of pedestrian lives.
apple.news/AABDIMXHmQoy...
#onpoli
#topoli
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Opinion: Children’s safety matters more than shaving a few seconds off someone’s commute — The Globe and Mail
Doug Ford complains that speed cameras target people going just 10 km/h over the limit, but that’s enough to make the difference between life and death
https://apple.news/AABDIMXHmQoyJcsuXUFK2ZA
4 months ago
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reposted by
Derek Tsang
ProPublica
4 months ago
Much of the cardboard and paper goods strewn about our homes are sold by a single private company, with its name, Uline, stamped on the bottom. Many may not know that a multibillion-dollar fortune made on those ubiquitous products fuels far-right candidates across the country. (Published 2022)
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That Cardboard Box in Your Home Is Fueling Election Denial
A previously unreported boom in profits for the shipping supply giant Uline has provided the funds for a deeply conservative Midwestern family to bankroll anti-democracy causes around the country.
https://www.propublica.org/article/uline-uihlein-election-denial?utm_campaign=propublica-sprout&utm_content=1758338100&utm_medium=social&utm_source=bluesky
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Republicans should stop denying climate change as a start
apple.news/AY9veXOYoSdy...
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Wisconsin and Minnesota Republicans call on Canada to curb wildfire smoke — The Canadian Press
Six Republican lawmakers have sent a letter to Canada's ambassador calling fo
https://apple.news/AY9veXOYoSdyKDv0pMK5qlA
6 months ago
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🇨🇦🇨🇦
6 months ago
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This is why
#bike
lanes matter 🚲
@cycletoronto.bsky.social
#topoli
6 months ago
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reposted by
Derek Tsang
André Picard @picardonhealth
7 months ago
Remember when summer used to be carefree and fun, not filled with apocalyptic challenges from wildfires to suffocating heat? Tackling
#ClimateChange
requires mitigation and adaptation, not just eco-anxiety, by
@picardonhealth.bsky.social
www.theglobeandmail.com/opinion/arti...
@theglobeandmail.com
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Opinion: Rescuing summer holidays from the clutches of climate change
A never-ending cascade of threats is a reminder that we need to mitigate the climate crisis if we don’t want to leave our kids in a hellscape
https://www.theglobeandmail.com/opinion/article-children-summer-wildfire-smoke-climate-change/#comments
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reposted by
Derek Tsang
Dr Joss Reimer
7 months ago
AB is seeing its worst measles outbreak since 1979 – last week reaching 879 cases & rising. Measles is highly contagious but preventable. The vaccine is 97% effective. Protect yourself and your community.
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Was a pleasure to visit
@cuanschutz.bsky.social
and
@childrensresearch.bsky.social
this week and participate as faculty in the 8th Postgraduate Course on Childhood Craniopharyngioma in Denver, Colorado. Thank you Dr Hankinson for hosting and organizing a great meeting.
7 months ago
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Happy to share our work led by Dr Inhwa Kim (radiation oncology resident
@radmedpm.bsky.social
) on our
#proton
therapy consultation service for Canadian patients. We showed reduction in dose to healthy tissues with
#protons
.
doi.org/10.1016/j.ti...
7 months ago
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#radonc
add a skeleton here at some point
7 months ago
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Pleased to share our Critical Review on use of stereotactic radiation for children with cancer, and how we can apply adult-derived evidence to inform clinical practice.
www.redjournal.org/article/S036...
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Stereotactic Radiation Therapy in Children and Young Adults: Can We Apply Adult Treatment Paradigms?
The use of stereotactic radiation therapy (RT) in the treatment of children and young adults with malignancies and benign conditions has been increasing. However, the evidence guiding stereotactic RT ...
https://www.redjournal.org/article/S0360-3016(25)00478-X/
7 months ago
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reposted by
Derek Tsang
TTCriders
7 months ago
We’re setting the record straight on dedicated lanes. Red lanes on Dufferin and Bathurst will make our travel faster, safer, and more accessible. They will also help cut congestion and reduce pollution. Read this thread to get the facts ⬇️ 1/5
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reposted by
Derek Tsang
Kirsten Bibbins-Domingo
7 months ago
JAMA Oncology is now on
@bsky.app
!! Follow
@jamaoncology.bsky.social
&
@jama.com
for oncology content
#MedSky
#OncSky
#ASCO25
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reposted by
Derek Tsang
Josh Trebach, MD
7 months ago
if you have a uti you should see a statistician bc they know a lot about pee values
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Dr David Mak (
@radmedpm.bsky.social
) presenting a secondary analysis of data from ACNS1123 stratum 1 at
#asco25
- proton therapy associated with improved IQ as compared with x-ray (photon) radiation in children with non-germinomatous germ cell tumours.
7 months ago
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reposted by
Derek Tsang
American Society of Clinical Oncology
7 months ago
Second up! Dr. Jean Bourhis Sr presents NIVOPOSTOP (GORTEC 2018-01): chemoRT +/- nivolumab for resected, high risk head and neck squamous cell carcinoma. 24% risk reduction in disease progression or death: 3-year DFS 63.1 vs 52.5 months (HR 0.76) with substantial drop in locoregional relapse
#ASCO25
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Agree! Need the Government of Ontario to step up and properly fund
@tdsb.on.ca
and other school boards, and not threaten to take their land or governance
add a skeleton here at some point
7 months ago
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reposted by
Derek Tsang
Josh Matlow
7 months ago
This article is from 2008. Together, we fought hard to save Toronto’s school pools. Today, they’re threatened with closure once again. It’s time for life-saving aquatic programming, outdoor education and special needs programs to finally be supported by the province
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reposted by
Derek Tsang
American Society of Clinical Oncology
7 months ago
First up at
#ASCO25
Plenary: According to ATOMIC results, adding atezo to FOLFOX improves DFS in stage III dMMR
#ColonCancer
& yields 50% reduction in the risk of recurrence & death vs chemo alone:
brnw.ch/21wT4N9
#ASCODailyNews
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reposted by
Derek Tsang
Citizens’ Climate Lobby Canada
7 months ago
Fossil fuel companies have been blocking the transition away from their dangerous product since 1967. Wildfires causing an increased in asthma and spur new onset epilepsy. Plus post menopausal women can’t bear the heat. Enough is enough
#SueBigOil
news.westernu.ca/2025/05/air-...
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Air pollution may increase epilepsy risk, new study suggests
Western and LHSCRI researchers found a direct connection between new cases of epilepsy in adults in Ontario and long-term exposure to air pollution
https://news.westernu.ca/2025/05/air-pollution-epilepsy/
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So proud of our
@radmedpm.bsky.social
trainees Dr Zhao and Dr Mak, winners of
#asco25
awards!
7 months ago
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Made it to
#asco2025
! Excited for our
@radmedpm.bsky.social
resident Dr Mak to present
#acns1123
data on cognition after proton vs photon data- and to see the latest brain tumour science.
7 months ago
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apple.news/AHuvE-t-2Tj2...
Need to treat the climate emergency as the emergency that it is 😢 🚨
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Environment Canada issues air quality alerts due to wildfire smoke — CTV News
Wildfire smoke has caused Environment Canada to issue air quality alerts in Alberta, Saskatchewan, Manitoba, Northwest Territories, Ontario and Labrador.
https://apple.news/AHuvE-t-2Tj2awneeincfLA
7 months ago
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apple.news/AKmWSuL15R0y...
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Anti-anxiety pill travels 52,000 kilometres to get to Canadian shelves, study shows — The Globe and Mail
The anti-anxiety medication clonazepam is produced on multiple continents, making it vulnerable to shocks such as tariffs, researchers say
https://apple.news/AKmWSuL15R0yegxmi6gw6iQ
7 months ago
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Grateful to the organizers of
#CNO2025
(Canadian Neuro-Oncology Meeting in Vancouver) for the opportunity to speak about our work in using AI and machine learning to improve radiation for children and adults with brain tumours (#btsm)
8 months ago
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reposted by
Derek Tsang
André Picard @picardonhealth
8 months ago
License to kill: The pandemic on our roads. The number of victims of road violence is catastrophic. The ultimate weapon remains the vehicle, by
@donovanadamo.bsky.social
healthydebate.ca/2025/05/topi...
via
@healthydebate.bsky.social
#VisionZero
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License to kill: The pandemic on our roads - Healthy Debate
Many vehicular deaths are preventable. Traffic violence happens frequently but we don’t take these incidents seriously, judicially, socially nor traffic engineering-wise.
https://healthydebate.ca/2025/05/topic/license-to-kill-the-pandemic-on-our-roads/
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reposted by
Derek Tsang
The Local Magazine
8 months ago
The province says the Toronto District School Board has a spending problem. The board says it’s chronically underfunded.
@wencyleung.bsky.social
sorts through the numbers.
thelocal.to/tdsb-2025-26...
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Understanding the TDSB’s Budget Woes in Five Charts | The Local
The province says the school board has a spending problem. The board says it’s chronically underfunded. We sort through the numbers.
https://thelocal.to/tdsb-2025-26-budget/
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Happy to share our collaboration with Drs Deyell, Gupta and the Canadian Sarcoma Research Collaboration on whole abdominal radiotherapy for children with sarcoma - this is an effective treatment for some patients -
doi.org/10.1002/pbc....
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Whole Abdominal Radiotherapy Is Tolerable and Effective in Children and Young Adults With Intra‐Abdominal Sarcoma: A Canadian Sarcoma Research and Clinical Collaboration (CanSaRCC) Study
Background Whole abdominal radiotherapy (WART) is utilized in children, adolescents, and young adults with intra-abdominal sarcoma, but efficacy and toxicity are uncertain. Methods Sarcoma patient...
https://doi.org/10.1002/pbc.31768
8 months ago
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History of the Paediatric Radiation Oncology Society:
doi.org/10.1002/pbc....
#pros
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Twenty Years of the Paediatric Radiation Oncology Society
In 2005, the Paediatric Radiation Oncology Society (PROS), a multi-professional association to promote radiotherapy for children and young people, was created. Its mission has been to educate those i....
https://doi.org/10.1002/pbc.31764
8 months ago
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reposted by
Derek Tsang
André Picard @picardonhealth
8 months ago
Where is Public Health? Last week, I was writing about
#measles
spreading in Ontario and Alberta and the invisibility of public health officials there.
www.theglobeandmail.com/canada/artic...
CBC News has more on the topic today, including this observation.
www.cbc.ca/news/health/...
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Proud to see former clinical fellow Dr Nisha Shariff present the
@pmresearch-uhn.bsky.social
experience on
#reirradiation
for children with
#brainstem
glioma showing a survival benefit to reRT! Great work, Dr Shariff.
#estro25
8 months ago
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reposted by
Derek Tsang
Josh Matlow
9 months ago
Sign the Petition to Save Our School Pools! A report in the TDSB agenda, just released, proposes closing all 66 school pools, included 27 permitted by the City of Toronto, in Toronto’s public schools due to funding cuts from the Province…
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reposted by
Derek Tsang
Dr. Emily Drake
9 months ago
Get out and
#vote
#Canada
!! 🇨🇦
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apple.news/AcIoZEtYURxC...
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Local Canadian leaders call for less pipelines, more climate action amid election campaign — CityNews Calgary
In an open letter, Canadian municipal leaders are calling on major federal party leaders to act to reduce climate-related emergencies.
https://apple.news/AcIoZEtYURxCixt5eRvwTSQ
9 months ago
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reposted by
Derek Tsang
Altmetric
9 months ago
“On today’s X,
#AcademicTwitter
is dead. And most scholars in the world do not want to be active on what the platform has become.” ~
@claesdevreese.bsky.social
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X’s dominance ‘over’ as Bluesky becomes new hub for research
Data indicates more scholars turning to alternative social media site to post about their work after Elon Musk’s Twitter takeover
https://www.timeshighereducation.com/news/xs-dominance-over-bluesky-becomes-new-hub-research
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reposted by
Derek Tsang
University Health Network
9 months ago
Congratulations to UHN's Dr. Kevin Smith on being named a 2024/25 Newsweek Top CEO! Dr. Smith’s leadership in delivering world-class patient care is shaping the future of health care in Canada and being recognized on a global scale. Read his Newsweek CEO Circle profile:
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Dr. Kevin Smith
https://www.newsweek.com/dr-kevin-smith
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apple.news/AoagSL_ihSra...
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Opinion: Why it was wrong to axe the tax — The Globe and Mail
The end of the carbon tax is a defeat both for the enviroment and for truth
https://apple.news/AoagSL_ihSraaC9zPJsjfNA
9 months ago
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reposted by
Derek Tsang
TTCriders
9 months ago
“That’s just not acceptable,” Shelagh Pizey-Allen, executive director of TTCriders, said in an interview with Now Toronto on Monday. “The question is, who should get priority? Thousands of transit riders or a couple of drivers who are making left turns at red lights?”
nowtoronto.com/news/ttc-tra...
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‘Give transit the green light,’ TTC transit advocates are urging the city to give upcoming LRT lines signal priority - NOW Toronto
Toronto transit riders are pushing for the Eglinton Crosstown LRT and Finch West LRT to be given signal priority to avoid red stop lights.
https://nowtoronto.com/news/ttc-transit-advocates-are-urging-the-city-to-give-upcoming-lrt-lines-signal-priority/
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It was a pleasure to work with Justin Oh and radiation oncologists across Canada to write a scoping review on novel techniques and future directions in radiation treatment for brain tumours in children - read it here:
doi.org/10.3390/curr...
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https://doi.org/10.3390/curroncol32030180
9 months ago
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Happy to share our experience treating children with recurrent brainstem glioma with 3 or 4 courses of radiation. Although a palliative treatment, re-irradiation offers relief of symptoms and additional survival.
@radmedpm.bsky.social
onlinelibrary.wiley.com/doi/10.1002/...
#btsm
#childhoodcancer
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Three and Four Courses of Radiation for Children with Recurrent Diffuse Intrinsic Pontine Glioma
Purpose Re-irradiation (RT2) for children with diffuse intrinsic pontine glioma (DIPG) is increasingly used upon recurrence; however, limited data are available for evaluating additional courses of .....
https://onlinelibrary.wiley.com/doi/10.1002/pbc.31695
9 months ago
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Thanks,
@picardonhealth.bsky.social
, for bringing light to this important issue. I routinely discuss TTF (Optune) with my patients. Lack of government or private insurance coverage is the main barrier to this therapy. Look forward to the day
@ontariohealth.bsky.social
makes a decision about funding.
add a skeleton here at some point
10 months ago
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reposted by
Derek Tsang
Radiation Medicine Program
10 months ago
🎉 Congratulations to Drs.
@detsang.bsky.social
,
@drdhodgson.bsky.social
, Barbara Ann-Millar, and Dana Keilty on their newly published paper in Radiotherapy & Oncology! 👏 🔗 Read here:
doi.org/10.1016/j.ra...
#RadiationMedicine
#CancerResearch
#RMPatPM
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Pleased to share our study evaluating children undergoing re-irradiation for brainstem glioma and diffuse midline glioma - re-irradiation is an effective (albeit temporary) treatment that extends life and palliates symptoms.
#radonc
www.thegreenjournal.com/article/S016...
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Re-irradiation for children with diffuse intrinsic pontine glioma and diffuse midline glioma
Diffuse intrinsic pontine glioma (DIPG) accounts for 80 % of brainstem tumours and 10 % of all pediatric high-grade gliomas. The peak age of incidence is in children between 6 to 8 years of age [1]; i...
https://www.thegreenjournal.com/article/S0167-8140(25)00160-4/fulltext
10 months ago
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Please to contribute to this review of current developments and novel therapies in the radiation treatment of pediatric brain tumours. Thanks Dr Justin Oh for leading this effort.
doi.org/10.3390/curr...
#btsm
#childhoodcancer
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https://doi.org/10.3390/curroncol32030180
10 months ago
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reposted by
Derek Tsang
Canadian Medical Association
10 months ago
The CMA has stopped posting on X. With Elon Musk's role in the Trump administration, the platform has become a tool for the U.S government and its attacks on Canadians and our sovereignty.
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CMA leaving X
The CMA has stopped posting on X, the platform formerly known as Twitter, as of Mar. 12.
https://www.cma.ca/latest-stories/cma-leaving-x
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We are Canadian 🇨🇦🍁
youtu.be/_OzbmriDgQc?...
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We Are Canadian
YouTube video by Jeff Douglas
https://youtu.be/_OzbmriDgQc?si=4XbPnBOxsys20ttg
10 months ago
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reposted by
Derek Tsang
Eric Topol
10 months ago
When vaccination rates fall.......
www.latimes.com/opinion/stor...
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