Bienvenue à Dermatologues! Nous sommes heureux d’offrir aux résidents en dermatologie et aux autres auditeurs intéressés, en collaboration avec des dermatologues de premier plan du Canada, des réponses à vos questions d’actualité sur la dermatologie.

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À noter que les balados sont en anglais.

Saison 2

On our first episode back, Dr Kerri Purdy dives into two related topics, Phototherapy and PDT (photodynamic therapy) with Dr Vincent Richer of the University of British Columbia medical school and Pacific Derm in Vancouver.

They discuss when to prescribe PDT or Phototherapy, the importance of prepping the patient for what they are getting into, why tanning beds and home sunlamps are not a good alternative to in clinic treatment and why PDT remains an important tool in the dermatologists tool box even with new and effective drug options.

On this episode we take two dermatology resident questions, from Mimi Tran of the University of British Columbia and Annie Liu of the University of Toronto.

Dr. Purdy is focusing on genital dermatology over the next two episodes of Dermalogues. To kick things off, she talks with Dr Phil Doiron about male genital derm. Kerri and Phil discuss the best ways to carry out a general male genital exam for both circumcised and uncircumcised patients, when and how to biopsy this delicate area and the most common STD’s and how to treat them.
Dr Phil Doiron is a dermatologist at Women’s College Hospital and Director of Dermatology at the University of Toronto medical school.

We hope you enjoy this episode of Dermalogues. Be sure to subscribe so you don’t miss the following episode on female genital Derm featuring Dalhousie University’s Dr Mary Lou Baxter.

If there’s anything you’d like us to cover on Dermalogues, or specific questions you have for Kerri and her guests, please send us an email

In a rare face-to-face Dermalogues episode, Dr Kerri Purdy travels to Darmouth, Nova Scotia to interview one of her mentors, Dr Mary Lou Baxter, about vulvar dermatology.

In their discussion the two cover everything from; the art of carrying out a thorough vulvar examination that is also comfortable for the patient; what the popular products are now that may be causing vulvar allergies and itch; when you might biopsy for genital lichens sclerosus; why estrogen based topical products are often so effective for post-menopausal patients… and be sure to stay to the end to hear #MaryLouSays, Dr Baxters five key pearls of vulvar dermatology wisdom.

Dr Baxter is an Assistant Professor at Dalhousie University and co-manages the Vulvar Dermatology Clinic in Halifax.

Dermatology Resident Questions on this episode are from Suzel Fournier at Laval University and Fatmah AlZahrani at the University of Alberta.

Dr Raed Alhusayen joins Dr Kerri Purdy to talk over an important and complicated area of Dermatology, Cutaneous Lymphoma.

Topics covered include: What clinical clues to look for in making a diagnosis of cutaneous lymphoma and specifically mycosis fungoides. Tips on when to biopsy, how often and the best techniques. Other investigations to consider in diagnosis and treatment. How to break the news to a patient. And the best treatments to use. And worthy of such a complicated topic, this episode features a Dermalogues record number of Resident Questions including:
Danny Mansour from the University of British Columbia, Naomi Labonté-Truong of L’Université de Montréal, Matthew Hughes of the University of Calgary and Misha Zarbafian of the University of British Columbia.

Dr Raed Alhusayen is an assistant professor at the University of Toronto and an associate scientist at Sunnybrook Research Institute. He runs a full-time medical dermatology practice with a focus on cutaneous lymphoma, hidradenitis suppurativa, and autoimmune bullous disorders. Dr. Alhusayen is the president of the Canadian HS foundation.

UBC’s Dr Jan Dutz joins Dr Kerri Purdy for a fascinating deep dive into the intersecting worlds of Dermatology and Rheumatology in this latest episode of Dermalogues. Topics covered include the best approach to the undifferentiated autoimmune-rheumatology patient, best tips on how to interpret auto-antibodies, treating cutaneous calcinosis in a dermatomyositis patient, what to do with a positive ANA result in a patient with a low likelihood for an autoimmune disease and much more.

Dermatolofy Resident questions in this episode come from Krystina Cleminson of Dalhousie University and Robert Bobotsis and Mathew Nicolas of the University of Toronto.

Dr Jan Dutz is a Dermatolgist and Rheumatologist. He is a Professor and Head of the Department of Dermatology and Skin Science at the University of British Columbia. He is also a Senior Scientist with the British Columbia Children’s Hospital Research Institute.

Neonatal dermatology, treating newborn infants under the age of one month, can be one of the greatest challenges facing a dermatologist. How do you treat a patient that is so small, helpless and unable to express the pain, or other effects of the the skin issues that are presenting. For this interview, Kerri Purdy is happy to be joined by someone with deep knowledge and expertise in both neonatal and dermatological care. Dr. Marrisa Joseph teaches pediatrics and dermatology at the University of Toronto and is the Director of the Ricky Kanee Schachter Dermatology Centre at Women’s College Hospital. And this episode also turns out to be a reunion! Kerri and Marissa were classmates at Dalhousie medical school, back in the day.

This summer, a swarm of Gypsy Moths have been stripping leaves from the forests of central Canada, stretching from southern Ontario into western Quebec. The mass infestation, which occurs ever twelve to fourteen years, has also produced an outbreak of rashes, Gypsy Moth Dermatitis, caused by contact with the insect.

In this fascinating and entertaining Editor’s Choice Edition of the podcast, Dr Kirk Barber, Editor-in-Chief of the Journal of Cutaneous Medicine and Surgery, talks to two experts on the Gypsy Moth phenomenon and the dermatitis it produces: Dr Melinda Gooderham, is Medical Director at the SKiN Centre for Dermatology in Peterborough, Ontario and an Assistant Professor at Queen’s University. And Professor David Beresford, teaches biology in the environmental studies program at Trent University, where he specializes in pest management.

Saison 1

Dr Kerri Purdy speaks with Dr Laurie Parsons, a dermatologist and wound care expert in Edmonton. They discuss some of the strengths dermatologists bring to the field of wound care. And they answer resident questions such as:

  • Approach to dressings in general (broad categories and when to use them)
  • What dressings are best to prevent scars or improve cosmetic outcome?
  • When should wound care be referred to a vascular surgeon? To a nursing service? Or when is it best for a dermatologist to manage?
  • How soon can you expect wounds to heal in simple and moderately complex cases?
  • What to do when you’ve tried everything you can think of, and the wound is not healing?

As always, the discussion goes beyond these specific questions and offers residents a wide-ranging look at this critical aspect of patient care.

Dr Kerri Purdy speaks with Dr Vincent Richer, a dermatologist and expert in lasers and phototherapy in Vancouver, BC. They briefly discuss just how cool lasers are and then get down to practical considerations such as how to determine which laser treatment to use for a specific condition. For example, what setting to use for vascular lesions vs melanocytic lesions and other finer considerations for finessing laser selection. Dr Richer and Dr Purdy also discuss the resources residents can use and approaches they can take to gain a better understanding of how to make effective clinical decisions on the use of lasers and phototherapy.

Dr Kerri Purdy speaks with Dr Perry Grewal, a dermatologist involved in clinical trials in Edmonton Alberta. They cover when to start and when to stop biologics and address specific questions from dermatology residents such as:

  • How long do I have to wait before initiating a biologic in a patient with latent TB
  • Should I hold a biologic for surgery?
  • How do you start a biologic in a woman who wants to get pregnant, is pregnant, or is breastfeeding?

This episode offers an excellent opportunity for residents to hear from an expert who is frequently an invited speaker on biologics at conferences. In a nutshell, this episode is a perfect example of what this podcast series is all about!

Dr Kerri Purdy speaks with Dr Sam Hanna. Dr Hanna, a dermatologist practising both medical and cosmetic dermatology in Toronto, Ontario. Dr Hanna has a particular interest in Botox and injectable fillers for aesthetic improvement and is involved in research trials. They discuss the need for dermatologists to inject themselves into the increasingly crowded field of cosmetics. Dermatologists have unique expertise to ensure cosmetic injections are appropriate, safe and effective. As well, Dr Hanna offers some advice to residents on how to manage the stigma around aesthetic dermatology. He also answers some practical questions like:

How to assess the ageing face and how to prioritise different treatment options that yield the most noticeable aesthetic result?

Dr Kerri Purdy speaks with Dr Sandy Skotnicki the founding director of the Bay Dermatology Centre and an Assistant Professor at the University of Toronto, Department of Medicine in the Divisions of Dermatology and Occupational and Environmental Health.

Dr Skotnicki is also the author “Beyond Soap: The Real Truth About What You Are Doing to Your Skin and How to Fix It for a Beautiful, Healthy Glow.” She is a renowned expert in contact dermatitis. On this episode Dr Skotnicki tells residents what they need to know about:

  • Patch testing
  • Product labelling (and mis-labelling)
  • The value of AAD conferences for residents
  • Food allergens
  • Top 5 hot allergens
  • Preparing for the college exams
  • Sunscreen reactions
  • Her best contact dermatitis case ever

And of course, resident questions:

  • When should a community dermatologist who does patch testing refer to a tertiary institution with more sophisticated testing?
  • How to counsel a patient on cross reactants?

Dr Kerri Purdy speaks with Dr Melanie Pratt, a world-renowned expert on contact dermatitis. This is part two of our look at the Sherlock Holmes world of contact dermatitis. Treating this mysterious condition requires clinicians to trade their lab coats for detective caps as they hunt around for clues and search for allergens and irritants in fragrances, products and even furniture.

As you will hear, the process of discovering the culprit behind contact dermatitis is often far from elementary. In this episode, Drs Purdy and Pratt explore some of the most common irritants and allergens found in products.

They take a close look at specific problem areas, like eyelids, lips, scalp and hands.

And they review why patch tests are a critical tool for all dermatologists.

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