Dermalogues: The Dermatology Residents Podcast with Dr. Kerri Purdy

Epizode

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  S7 Ep6: Pregnancy Dermatoses with Dr. Perla Lansang 02.04.2026 44min

  Pregnancy brings major hormonal and immune changes—and the skin often reflects it. In this final episode of season 7 of Dermalogues, Kerri sits down with Dr. Perla Lansang to break down common and high-yield dermatologic conditions in pregnancy, from physiologic changes to PEP (PUPPP) and pemphigoid gestationis.They discuss how to recognize key patterns, when to biopsy, and how to treat safely—including the role of systemic therapies. The episode also emphasizes a critical takeaway: don’t undertreat pregnant patients—healthy moms are essential for healthy pregnancies.Dr. Perla Lansang is a staff dermatologist and Associate Professor at the University of Toronto, based at Sunnybrook Health Sciences Centre. She has held leadership roles including Division Director and Director of Undergraduate Education, and is cross-appointed in pediatric dermatology at the Hospital for Sick Children as well as Obstetric Medicine at Sunnybrook. Her clinical interests include pregnancy-related dermatoses and complex medical dermatology.In this episode:Normal vs pathologic skin changes in pregnancyAtopic eruption, acne, and psoriasis in pregnancyPEP vs pemphigoid gestationis: key differencesSafe treatment strategies and medication pitfalls Additional Reading:Development and multicenter international validation of a diagnostic tool to differentiate between pemphigoid gestationis and polymorphic eruption of pregnancy in the JAAD.For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced David McGuffin of ExploreProductions.ca with Graham McGuffin.Our theme music is by Lee Rosevere
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  S7 Ep5: Practical Pediatric Dermatology Pearls with Dr. Jérôme Coulombe 19.12.2025 52min

  In this episode of Dermalogues, Dr. Kerri Purdy is joined by pediatric dermatologist Dr. Jérôme Coulombe for a practical discussion on common and high-stakes pediatric dermatology presentations.They cover how to approach the febrile child with a rash, recognizing red flags for serious infection and Kawasaki disease, and navigating viral exanthems like urticaria multiforme, EBV, adenovirus, and measles. The conversation also dives into eczema management myths, molluscum contagiosum (including a clever otoscope curettage technique), and how to think through genital lesions in children.The episode wraps with a clear, experience-based review of infantile hemangiomas, including when to treat, propranolol dosing, duration, rebound, and the role of topical timolol. Packed with practical pearls for residents and practicing clinicians alike.Dr. Jérôme Coulombe is a dermatologist with fellowship training in pediatric dermatology. He is a Clinical Associate Professor in the Department of Pediatrics at the Université de Montréal Faculty of Medicine and practices at CHU Sainte-Justine in Montreal.For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced David McGuffin of ExploreProductions.ca with production assistance by Graham McGuffin and Clare McGuffin.Our theme music is by Lee Rosevere
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  S7 Ep4: Clinical Trials with Dr. Melinda Gooderham 03.12.2025 38min

  “Clinical trials don’t just advance medicine — they can transform your practice.”In this episode of Dermalogues, host Dr. Kerri Purdy sits down with Dr. Melinda Gooderham, Medical Director at the Skin Centre for Dermatology in Peterborough, Ontario. Together, they take a deep dive into the world of clinical research in dermatology.Dr. Gooderham shares her journey into clinical trials, how she balances a busy medical practice with research, and the many rewards — and realities — of integrating trials into clinical dermatology. They cover everything from the four phases of clinical research to practical tips on getting started, managing staff and space, and navigating ethics approvals and sponsor relationships.Whether you’re a dermatology resident curious about research or a practicing dermatologist considering trials in your own clinic, this episode offers insider insights, candid advice, and a clear look at how clinical research can enrich your practice and patient care.Dr. Melinda Gooderham is Medical Director at the Skin Centre for Dermatology in Peterborough, Ontario, a Consultant Physician at Peterborough Regional Health Centre, and Assistant Professor at Queen’s University. She is also Deputy Editor of JCMS Case Reports and one of Canada’s leading clinical trial investigators in dermatology.For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced David McGuffin of ExploreProductions.ca with Graham McGuffin and Clare McGuffin.Our theme music is by Lee Rosevere
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  S7 Ep3: Mohs Surgery & Surgical Dermatology with Noelle Wong, Iren Kossintseva and Angela Burleigh 20.11.2025 55min

  Today on Dermalogues: We get surgical.Host Dr. Kerri Purdy talks with Dr. Noelle Wong about integrating surgical techniques into dermatology—from biopsies to complex excisions and the path to Mohs fellowship training.Then Noelle brings in her colleagues Dr. Iren Kossintseva and Dr. Angela Burleigh to unpack the realities of Mohs Micrographic Surgery and the creation of their new all-female, high-volume Mohs clinic in Richmond, BC.You’ll hear:What “non-Mohs” surgical dermatology includesHow Mohs cases run from mapping to final closureManaging massive defects and complex reconstructionsThe behind-the-scenes of starting a new Mohs centerAdvice for residents interested in surgical pathsA must-listen for dermatology residents and anyone curious about the surgical side of the specialty.For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced David McGuffin of ExploreProductions.ca with production assistance by Graham McGuffin and Clare McGuffin.Our theme music is by Lee Rosevere.
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  S7 Ep2: Derm Myth-Busting with Dr. Mark Kirchhof 05.11.2025 41min

  On this latest episode of Dermalogues, host Dr. Kerri Purdy is joined again by Dr. Mark Kirchhof for some Derm Myth-Busting. Kerri has been hearing from Residents looking for answers about some Derm Myths that are popping up on social media and elsewhere. Together, Kerri and Mark tackle some of the most common — and most talked about — myths in dermatology, from “topical steroid withdrawal” and “natural sunscreens” to “slugging,” “collagen supplements,” “beef tallow skincare,” and even “perineal tanning.”Dr. Purdy and Dr. Kirchhof separate science from social media hype, giving residents practical, evidence-based ways to address the questions they’re hearing in clinic every day. They also take a look ahead at how AI could reshape dermatology practice in the near future.Dr. Kirchhof is the Division Head of Dermatology at the University of Ottawa and The Ottawa Hospital, and the current President of the Canadian Dermatology Association (CDA). His research focuses on immune-system signalling pathways in dermatology, and he previously served as Education Director at Queen’s University.For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced David McGuffin of ExploreProductions.ca with Graham McGuffin and Clare McGuffin.Our theme music is by Lee Rosevere
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  S7 Ep1: Filler, Filters, and the Future: What’s New in Aesthetic Dermatology with Dr Julia Carroll 22.10.2025 36min

  Season 7 of Dermalogues kicks off with a return visit by Dr. Julia Carroll, co-founder of Compass Dermatology in Toronto. In this episode, Julia and Kerri explore what’s new and next in aesthetic dermatology—and how to help patients look and feel their best without losing their natural features.Topics include:Why “filler” has become the new F-wordThe influence of social media on patient expectationsSafer injection techniques using ultrasound and cannulasMoving from anti-aging to pro-aging careInsights on threads, regenerative injectables, and red-light therapyAddressing “Ozempic face” and volume lossPearls for treating melasma and pigment changesThe role of AI in the future of dermatologyDr. Carroll is a board-certified dermatologist and Fellow of the Royal College of Physicians and Surgeons of Canada, specializing in both medical and cosmetic dermatology. At Compass Dermatology, Dr. Carroll focuses on evidence-based aesthetic treatments with a natural, confidence-building approach. She is recognized nationally as one of Canada’s top cosmetic injectors and is widely sought after for her expertise in neuromodulators, fillers, lasers, and regenerative techniques.For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced David McGuffin of ExploreProductions.ca with Graham McGuffin and Clare McGuffin.Our theme music is by Lee Rosevere
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  S6 Ep6: Derm Detectives - Redemption Time 18.12.2024 49min

  For our final episode of season 6, Kerri and Mark Kirchhof are putting their sleuthing hats back on for another action filled episode of Derm Detectives that they are calling "Redemption Time." As regular listeners know, Derm Detectives is a popular segment where we invite Residents to present our detectives with a challenging case, and see if they can stump them. Well, this season our detectives were stumped in their first two attempts, so for episode three they decided to mix things up by throwing a couple of difficult cases at each other, in search of redemption. Listen in and let us know if you think they pulled it off.Our guest sleuth, Mark Kirchhof, is division head of Dermatology in the Faculty of Medicine at the University of Ottawa and The Ottawa Hospital. And he is the president elect of the CDA.For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast ProductionsOur theme music is by Lee Rosevere.
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  S6 Ep5: Diverse Hair with Dr. Crystal Aguh 11.12.2024 45min

  Kerri is thrilled to welcome Dr. Crystal Aguh, a true star in the world of dermatology and hair, to Dermalogues for a fascinating discussion about diverse hair, textured hair, hair loss and scarring and non-scarring alopecias. Dr. Aguh is an Associate Professor of Dermatology and Director of the Ethnic Skin Program at the Johns Hopkins School of Medicine. Her area of research focuses primarily on skin conditions that disproportionately impact minority populations, with particular emphasis on scarring hair loss and hair care practices.She is the co-author of the textbook "Fundamentals of Ethnic Hair: The Dermatologist's Perspective" and author of "90 Days to Beautiful Hair." She kindly joined us from Baltimore in the midst of preparing for American Thanksgiving. To learn more about the Hair Health Summit Dr. Aguh is organizing in 2025 in Chicago, visit hairhealthsummit.com For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast ProductionsOur theme music is by Lee Rosevere
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  S6 Ep4: Derm Detectives with Dr Tamryn Eglinton 04.12.2024 35min

  After a tough case last episode, the Derm Detectives are back and ready for more action, trying to crack yet another challenging case brought to us by you, the dermatology residents. This week's case comes from Dalhousie University third year resident, Tamryn Eglinton. It starts, innocently enough, with a referral for a patient with dry skin.Let the sleuthing begin! Dr Mark Kirchhof is the Division Head of Dermatology in the Faculty of Medicine at the University of Ottawa and The Ottawa Hospital. And the president-elect of the CDA. If you are a resident with a challenging case you'd like to test on the Derm Detectives, drop us an email at education@dermatology.caFor more on the work of the CDA, please visit dermatology.caAnd for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber.Dermalogues is produced by David McGuffin of Explore Podcast Productions. Our theme music is by Lee Rosevere
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  S6 Ep3: Derm Detectives with Dr. Miranda Waugh 27.11.2024 43min

  The Derm Detectives are back! Dr. Kerri Purdy and Dr. Mark Kirchhof are our sleuths as you, the Dermatology Residents, present them with challenging dermatology cases. And this episode's case may be the most challenging one yet. Will our Derm Detectives solve it or get stumped? We're really happy to have Dr. Miranda Waugh presenting her challenging case to us today. Miranda is a fourth year dermatology resident at the University of Ottawa. And she is the CDA Residents and Fellows Society Representative for 2024-25. Dr. Waugh is also the co-founder of Sty-Lives, a national skin cancer education initiative for hairstylists with Save Your Skin Foundation.Let the sleuthing begin! Dr Mark Kirchhof is the Division Head of Dermatology in the Faculty of Medicine at the University of Ottawa and The Ottawa Hospital. And the president-elect of the CDA. If you are a resident with a challenging case you'd like to test on the Derm Detectives, drop us an email at education@dermatology.caFor more on the work of the CDA, please visit dermatology.caAnd for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber.Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions. Our theme music is by Lee Rosevere
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  S6 Ep2: Dermatology and Working With Gender Transitioning Patients with Dr. Markus Boos 13.11.2024 52min

  Kerri is thrilled to welcome Dr. Markus Boos to Dermalogues for a fascinating, thoughtful and practical discussion on dermatology and working with patients in various stages of gender transition. It's part of our season 6 theme: "Topics you won’t likely find in a textbook, yet!"Dr Boos is an attending pediatric dermatologist at Seattle Children's Hospital and is an Associate Professor in the Department of Pediatrics at the University of Washington School of Medicine. He is also the Program Director of the Dermatology Residency Program. Dr. Boos is an advocate for health equity with a special interest in LGBTQ health, primary immunodeficiencies and the intersection of climate change and dermatology. For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions. Graham McGuffin, assistant producer.Our theme music is by Lee Rosevere
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  S6 Ep1: Diagnosing and Treating Itch with Dr Brian Kim 30.10.2024 49min

  Welcome to season 6 of Dermalogues! Our host Dr. Kerri Purdy is thrilled to be back for another season of amazing interviews with leading dermatologists, packed with clinical pearls for you. This season we’re tackling "topics you won’t likely find in a textbook, yet!" We'll also be bringing you two more of our popular Derm Detectives episodes.We're happy to be kicking off this season with a star in the world of dermatology and itch, Dr Brian Kim. He joins Kerri for a fascinating conversation about itch, work up of itch, and the neuroimmune axis.Dr. Kim is one of the top researchers worldwide in the study of patients with itch and other skin conditions. He is Vice Chair of Research in the Department of Dermatology at the Icahn School of Medicine at Mount Sinai Hospital in New York City. He is also the Director of the Mark Lebwohl Center for Neuroinflammation and Sensation. For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions. Graham McGuffin, assistant producer.Our theme music is by Lee Rosevere
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  S5 Ep6: Derm Detectives with Dr Janis Chang and Dr Mina Boshra 31.01.2024 53min

  Welcome to our second segment of "Derm Detectives" on Dermalogues, the CDA's version of a true crime podcast!Joining us today are two derm residents, Dr Janis Chang and Dr Mina Boshra. They will each present a complex dermatology case they've been involved with to see if they can stump our Derm Detectives, Dr Kerri Purdy and Dr Mark Kirchhof.Dr Chang is a PGY-4 dermatology resident at the University of Ottawa, and Co-Chair of the CDA Residents and Fellows Society. She has an interest in complex medical dermatology and clinical teaching. And Dr. Boshra is a second year resident, also in the University of Ottawa Dermatology Program. His research focuses are skin of color dermatology and 3D printing.Dr Mark Kirchhof is the Division Head of Dermatology in the Faculty of Medicine at the University of Ottawa and The Ottawa Hospital.If you are a resident with a challenging case you'd like to test on the Derm Detectives, drop us an email at education@dermatology.caFor more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions.  Our theme music is by Lee Rosevere
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  S5 Ep 5: Toxic Epidermal Necrolysis/Steven Johnson Syndrome, a Severe Drug Eruption with Dr Neil Shear 18.01.2024 50min

  Kerri is thrilled to have Dr Neil Shear join Dermalogues for this important conversation, part of our Season 5 deep dive into Complicated Medical Dermatology, talking to leading dermatologists about how they diagnose and treat complex cases and conditions.Dr. Neil Shear is a recently retired dermatologist and is Professor Emeritus at the University of Toronto’s Temerty Faculty of Medicine: divisions of Dermatology, Clinical Pharmacology and Toxicology. Before his retirement in 2021, Dr. Shear spent sixteen years as Director of the division of Dermatology at the University of Toronto, as well as holding a number of leading roles at Sunnybrook and Women’s College Hospital in Toronto.And he is also a fellow podcaster, hosting his own dermatology podcast called "Shear Listening Pleasure."For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions.Our theme music is by Lee Rosevere
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  S5 Ep4: Neutrophilic Dermatoses with Dr Alexandra Mereniuk 16.11.2023 53min

  Kerri's preferred name for this episode is Neutrophilic Stuff, because it covers such a wide range of things from Sweet syndrome to pyoderma gangrenosum, erythema nodosum, leukocytoclastic vasculitis, neutrophilic urticaria and more! As part of our Season 5 deep dive into complicated medical dermatology, Kerri is joined for this pearl filled episode by Dr Alexandra Mereniuk.Dr. Mereniuk is an Associate Professor of Dermatology at the University of Montreal. She is co-founder and co-director of the combined Dermatology - Internal Medicine Clinic at Sacré-Coeur Hospital, a specialized referral center for patients with complex systemic cutaneous disease including rheumatologic and autoimmune blistering diseases. For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions.Our theme music is by Lee Rosevere
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  S5 Ep 3: Derm Detectives with Dr Mark Kirchhof, Dr Sam Armstrong and Dr Mike MacGillivary 01.11.2023 46min

  We're trying something fun and new on Dermalogues this episode. It's our very first segment of "Derm Detectives." Think of it as the CDA's version of a true crime podcast. In it, dermatology residents present our two Derm Detectives, Dr Kerri Purdy and Dr Mark Kirchhof, with complex cases they've worked on. Will the Derm Detectives solve the case? Our residents in this episode are Dr Sam Armstrong and Dr Mike MacGillivary, both at Dalhousie University in Halifax.Dr Mark Kirchhof is the Division Head of Dermatology in the Faculty of Medicine at the University of Ottawa and The Ottawa Hospital.If you are a resident with a challenging case you'd like to test on the Derm Detectives, drop us an email at education@dermatology.ca For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions.  Our theme music is by Lee Rosevere
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  S5 Ep2: Immunobullous with Dr Regine Mydlarski 19.10.2023 41min

  The University of Calgary's Dr Regine Mydlarski is Kerri's guest for this fascinating, pearl filled conversation about immunobullous as we continue our season long deep dive into complex cases and conditions with leading dermatologists. This conversation is the second of three conversations recorded in person as part of the CDA annual conference in Toronto in June this year.Dr Mydlarski is an Associate Professor and Section Chief of Dermatology at the Cumming School of Medicine at the University of Calgary. She is also Chair of the Specialty Committee in Dermatology for the Royal College of Physicians and Surgeons of Canada.And to all you Residents listening out there, we're starting a new segment this season called Derm Detectives (drops November 2!), where Residents present Kerri Purdy and UOttawa's Dr Mark Kirchhof with a complex case they've been involved with, and see if they can stump the experts. If you are a Resident with a challenging case you'd like to try out on the Derm Detectives, drop us an email at education@dermatology.ca For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions.Our theme music is by Lee Rosevere
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  S5 Ep1: Cutaneous Toxicities with Dr Maxwell Sauder 04.10.2023 44min

  Welcome to Dermalogues Season 5! This season Kerri is taking a deep dive into complex medical dermatology, talking to leading dermatologists about how they diagnose and treat complex cases and conditions. And Kerri's first guest is Onco-Dermatologist Dr Maxwell Sauder discussing Cutaneous Toxicities, for a smart, fun and thoughtful conversation, filled with clinical pearls for all our Residents listening. This episode was recorded in person at the CDA Conference in Toronto,Dr Maxwell Sauder is an assistant professor and the onco-dermatology fellowship director at the University of Toronto. He is also an onco-dermatologist at Princess Margaret Cancer Centre. And practices at the Toronto Dermatology Centre where he is the research director and director of the pigmented lesion clinic.And to our Residents out there, we're starting a new segment this season called Derm Detectives, where Residents present Kerri and Dr Mark Kirchhof with a complex case they've been involved with, and see if they can stump the experts. If you are a Resident with a challenging case you'd like to test on the Derm Detectives, drop us an email at education@dermatology.ca For more on the work of the CDA, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions.Our theme music is by Lee Rosevere
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  S4 Ep6: Cross-Specialty Conversation - Plastic Surgery with Dr Simon Frank 22.03.2023 40min

  Dr. Simon Frank is Kerri's guest for this final episode of season 4, completing our series of cross specialty conversations with a fascinating discussion about plastic surgery. Together Kerri and Simon get into some of the many areas of specialty overlap between derm and plastics. This includes skin cancers, HS, and aesthetics.  Dr. Frank is an Assistant Professor and Program Director of Plastic Surgery at the University of Ottawa. In practice his focus is on breast reconstruction, microvascular reconstruction, aesthetic surgery and general plastic surgery.   Our Residents' Questions this week come from Dr Janice Chang at the University of Ottawa and Christina Huang from the University of Toronto. Thank you both!And a very big thank you also to Dr Saima Ali and Dr Anastasya Muntyanu for helping to bring in Residents' questions from across Canada this season. To learn more about the work of the Canadian Dermatology Association, please visit dermatology.ca  And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber, available wherever you listen to podcasts.  Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions. Our theme music is by Lee Rosevere.
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  S4 Ep5: Cross-Specialty Conversation - Infectious Diseases with Dr Sumon Chakrabarti 21.02.2023 47min

  Dr. Sumon Chakrabarti is Kerri's guest for this fascinating deep dive into questions about the cross-over worlds of Derm and Infectious Diseases. Together they discuss skin infections, infectious diseases as they relate to some of the newer medications and then some pandemic and epidemic topics like Monkeypox. It's a great conversation with lots of amazing pearls, and for his part, Dr Chakrabarti says he's thrilled to be discussing something other than COVID for the first time in a few years! Dr. Sumon Chakrabarti is a lecturer of Infectious Diseases at the University of Toronto. His clinical practice at Trillium Health Partners incorporates post-travel and tropical medicine. He also serves in a leadership capacity as division head of Infectious Diseases. Our Residents' Questions this week come from Dr Kaylin Bechard of the University of Alberta and Dr. Patrice Lagacé from McGill University. Thank you both!To learn more about the work of the Canadian Dermatology Association, please visit dermatology.ca And for more great CDA Podcasts, check out JCMS Author Interviews, hosted by Dr Kirk Barber, available wherever you listen to podcasts. Dermalogues is produced by the CDA and David McGuffin of Explore Podcast Productions.Our theme music is by Lee Rosevere.