Wednesday, September 4th, 24
14:00 – 16:45
DGK/IVDK Symposium
14:00 – 16:45
Iberico-Latin-American Symposium
14:00 – 16:45
ICDRG Symposium
14:00 – 16:45
ACDS Symposium

Updates in Implant Dermatitis from the North American Contact Dermatitis Group
Amber Atwater

Important Allergens and Considerations in Children
Kari Martin

Allergic contact dermatitis in the atopic dermatitis patient: patch testing considerations and important allergens
Jennifer Chen

Improving the Patient Experience: Contact Allergy Management Program (CAMP)
Margo Reeder

Hot New Social Media Influenced Trends in Contact Dermatitis
Marjorie Montanez-Wiscovich

Patch Testing on Immunosuppressants. Cases and new NACDG consensus guidelines
JiaDe Yu

Thursday, September 5th, 24
10:05 – 11:20
FS1: Molecular profile of hand eczema
Chairs: Anna Quaade, Copenhagen / Florentine de Boer, Amsterdam

Transcriptomic profiling of chronic hand eczema skin across subtypes
Anna Sophie Quaade

Stratum corneum levels of immunological markers in patch test reactions to contact allergens and sodium lauryl sulphate
Florentine de Boer

Stratum corneum levels of filaggrin degradation products in patch test reactions to contact allergens and sodium lauryl sulphate
Ivone Jakasa

Eczema or psoriasis – New results of a cohort study using molecular diagnostics in hand dermatoses
Philipp Bentz

Transcriptional differences between vesicular hand eczema and atopic dermatitis
Angelique Voorberg

10:05 – 11:20
FS2: Preservatives
Chair: Olivier Aerts, Antwerp / Suzana Ljubojevic, Zagreb

“Para-preservatives” in cosmetics causing allergic contact dermatitis
An Goossens

Challenging clinical cases of contact dermatitis from preservatives (part 1)
Esen Özkaya

Contact allergy to preservatives in occupational settings
Mihaly Matura

Challenging clinical cases of contact dermatitis from preservatives (part 2)
Marie-Claude Houle

10:05 – 11:20
FC1:
Chair: Henriette Rönsch, Dresden / Elke Weishaar, Heidelberg

Prevalence, risk factors, and prevention of occupational contact dermatitis among professional cleaners: a systematic review
Farnam Barati Sedeh

Allergic contact dermatitis from topical antibacterials/antiseptics between 1996 and 2023: A never-ending story of nitrofurazone in Turkey
Zeynep Keskinkaya

Changes in sensitisation patterns in Chronic Actinic Dermatitis: experience from a single centre over ten years
Ying Teo

Prevalence and incidence of hand eczema in healthcare workers: a systematic review and meta-analysis
Yasemin Topal Yüksel

A genome-wide association study of hand eczema identifies locus 20q13.33 and reveals genetic overlap with atopic dermatitis
Fieke Rosenberg

Epidemiological Study of Patients Patch Tested Under 16 Years Old from the GEIDAC Registry
Nidia Planella Fontanillas

Legislations and the current practices concerning risk assessment of skin sensitizers in the European Union: a comparative & survey study
Mathias Krogh Pedersen

Skin sensitization in the Spanish baseline patch test series by age group: a 2019-2023 multicentric prospective study
David Pesqué

The Sex-specific Association between Wet Work and Hand Eczema in the Dutch General Population: Application of a Job Exposure Matrix to the Lifelines Cohort Study
Marjolein Brands

11:50 – 13:05
FS3: Fragrances and hair cosmetics
Chair: Lina Hagvall, Göteborg / Wolfgang Uter, Erlangen

Repeated Open Application Test (ROAT) with Hydroperoxides of Linalool – Clinical Reactions
Sofia Botvid

Skin penetration of
cosmetic chemicals
visualised using imaging
mass spectrometry
Lina Hagvall

Skin deep: the distribution
and effects of
methylisothiazolinone (MI) and fragrances in the skin
Niamh O’Boyle

Hair cosmetics contact allergy, occupational and
non-occupational — trends since 1995 in central Europe
Wolfgang Uter

Antioxidant activity and skin sensitization of eugenol and isoeugenol: two sids of the same coin?
Elena Gimenz-Arnau

11:50 – 13:05
FS4: Allergic contact dermatitis versus atopic eczema: diagnostic perspectives
Chair: Anne-Birgitte Simonsen, Copenhagen / Margarida Goncalo, Coimbra

When to suspect ACD in patients with atopic dermatitis
David Pesqué

Main allergens responsible for CD in patients with atopic dermatitis
Olivier Aerts

Patch testing patients with atopic dermatitis – pitfalls and advice
Esen Özkaya

Immediate contact reactions in patients with atopic dermatitis
Margarida Goncalo

Proposal for a Pediatric European Baseline Series
Anne Birgitte Simonsen

11:50 – 13:05
FC2
Chair: Burkhard Kreft, Halle / Gyorgyi Ponyai, Budapest

Nickel Release Market Surveys in Europe and the United States
Katherine Heim

Multimorbidity in adults with atopic dermatitis in the Dutch general population
Leon Miltner

Evaluation of patients with positive patch test reactions to rubber additives: a retrospective cohort study from Turkey between 1996 and 2023
İbrahim Halil Aydoğdu

Long-term effectiveness and safety of dupilumab treatment in patients with moderate-to-severe atopic dermatitis: up to 5-year results from the BioDay registry
Marie-Louise Schuttelaar

Textile Dye Mix and Disperse Blue Mix: Co-sensitizations and cross-reactivities
Radoslaw Spiewak

Impurities in Brazilian propolis may cause an erratic increase of positive patch reactions: Results from a clinical epidemiological study in consecutive patients from three Swiss centres
Katharina Piontek

Frequency of contact sensitisations in Germany, Austria and Switzerland: a trend analysis based on data obtained with the DKG (German) baseline series from the Information Network of Departments of Dermatology (IVDK) from 2018 to 2022
Philipp Drewitz

Patch Testing with Out of Date Haptens
Rosemary Nixon

Prevalence and characteristics of skin reactions to diabetes medical devices in adults with type 1 diabetes in southern Sweden
Josefin Ulriksdotter

15:05 – 16:20
FS5: Hand eczema
Chair: Peter Elsner, Jena / Sonja Molin, Kingston

Update on contact allergy patterns in hand eczema
Marie-Noëlle Crépy

Skin Microbioma in hand eczema
Line Nørreslet

Hand Eczema in Children
Sonja Molin

Reaching consensus on a core domain set for hand eczema therapeutic trials
Outcome Set- an Update
Henriette Rönsch

The role of contact allergens in hand eczema: evaluation in terms of frequency, clinical/occupational relevance, and sources of exposure
Yasemin Erdem

15:05 – 16:20
FS6: Allergic contact dermatitis in different body- sites
Chair: Mihaly Matura, Skövde / Radoslaw Spiewak, Krakow

Causes of contact enanthema and eczema in and around the mouth
Radoslaw Spiewak

Anogenital Contact Eczema: Revealing Hidden Culprits and Recognizing Common Triggers
Suzana Ljubojevic

Common causes of contact eczema on the legs and feet
An Goossens

Contact allergy, distribution of symptoms without obvious local exposure
Mihaly Matura

Disease trends of hand and foot eczema and contact dermatitis in Singapore across a 15-year period
Christian Apfelbacher

15:05 – 16:20
EDU1: Routine patch testing
Chair: Magnus Bruze, Lund

Crucial factors in the reliability of patch tests
Mihaly Matura

Friday, September 6th, 24
10:05 – 11:20
FS7: Resins and acrylates
Chair: Kristiina Aalto-Korte, Helsinki / Elena Gimenez-Arnau, Strasbourg

2-Hydroxyethyl methacrylate: A clinical review of contact allergy and allergic contact dermatitis
Thomas Rustemeyer

Adverse skin reactions to medical devices used for individuals with diabetes – an update
Cecilia Svedman

Nine years of patch testing isocyanates in a clinic of occupational dermatology
Kristiina Aalto-Korte

Allergic contact dermatitis from acrylates in hygiene pads and diapers
Joana Xara

10:05 – 11:20
FS8: Textiles, footwear
Chair: Esen Özkaya, Istanbul / Katharina Hansel, Perugia

Current status in textile dermatitis
Marlene Iskasson

Examples of challenging cases of textile dermatitis
& Katharina Hansel: Allergic contact dermatitis to textile dyes misdiagnosed as atopic dermatitis
David Pesqué

Current status in footwear dermatitis
An Goossens

Examples of challenging cases of footwear dermatitis
Olivier Aerts & Esen Özkaya

Patch testing with a textile dye mix without Disperse Orange 3, a multicentre study within the International Contact Dermatitis Research Group
Annarita Antelmi

10:05 – 11:20
Hot topic: Angioedema, urticaria and atopic dermatitis
Chair: Nicola Wagner, Erlangen / Susanne Abraham, Dresden

Allergic Contact Dermatitis and Atopy
Richard Brans

Systemic Therapy of Atopic
Dermatitis in Children and
Adolescents
Susanne Abraham

Angioedema
Petra Staubach

Urticaria, Differentialdiagnosis and Possible Pitfalls
Nicola Wagner

Health literacy in hand eczema and atopic dermatitis: Revealing the extent of the problem both in the general and the clinical population
Laura Loman

11:50 – 13:05
FS9: Type I Allergens
Chair: Monika Raulf, Bochum / Maria Pesonen, Helsinki

Occupational Type I allergy – relevant allergens and diagnostic tools
Monika Raulf

Protein contact dermatitis – triggers, diagnosis and management
Vera Mahler

Occupational contact urticaria due to diethylphthalate
Sari Suomela

Concomitant occupational contact urticaria/protein contact dermatitis, asthma and rhinitis
Maria Pesonen

Characterization of clinical phenotypes in contact urticaria syndrome: a retrospective study of 95 cases
David Pesqué

11:50 – 13:05
FS10: Metals and implants
Chair: Peter Thomas, München / Malin Ahlström, Copenhagen

Metal contact allergy: General aspects
Malin Ahlström

Components of orthopaedic-surgical metal implants, metal release, biomechanics
Thomas Grupp

Relevance of proven metal allergy in relation to implant complication
Thomas Rustemeyer

Metal implant allergy: trends and perspectives
Peter Thomas

Patch Testing Outcomes and Clinical Management in Suspected Metal Hypersensitivity to Prosthetic Material: A Retrospective Unicentric Study
Joaoa Teixeira

11:50 – 13:05
FC3
Chair: Kathryn Zug, Dartmouth / Mette Sommerlund, Arhus

Hand eczema, skin barrier function and skin microbiome among waste sorting workers in Norway
Jose Hernan Alfonso

Contact allergy to screening allergens in adult type 1 diabetes patients
Thanisorn Sukakul

Contact allergy to medical device-related allergens in adults with type 1 diabetes
Martin Mowitz

Update on allergens in accelerator free gloves and results of chemical analysis of gloves by tandem mass spectrometry
Eddy Langlois

Relevance of contact allergy to different groups of allergens
Robert Ofenloch

Is it possible to design a study in consecutive dermatitis patients to pin-point or rule out patch test sensitization
Marlene Isaksson

AI Implementation and Regulation: What’s next? A US perspective
James Taylor

Interference of the positioning of Nickel, Chromium and Cobalt in the results of patch tests
Ida Duarte

Determining a point of departure for skin sensitization quantitative risk assessment of fragrance ingredients using the GARDskin dose-response assay
Isabell Lee

15:05 – 16:20
FS11: Drugs
Chair: Luca Stingeni, Perugia / Knut Brockow, München

Value of skin tests to diagnose drug exanthems
Margarida Goncalo

Manifestations and diagnosis of corticosteroid allergy
Luca Stingeni

Management of iodinated contrast media hypersensitivity
Knut Brockow

Updated standards for drug provocation tests
Kathrin Scherer Hofmeier

Decoding Beta-Lactam cross reactivity – Longitudinal Patch Testing updated from 2000-2022
Joao Soares

15:05 – 16:20
FS12: Occupational contact dermatitis: skin risk occupations
Chairs: Cecilia Svedman, Malmö / Linn Holness, Toronto

Occupational skin disease in healthcare personnel
Nils Hamnerius

Risk occupation, protective equipment. The armed forces; adhesive allergic contact dermatitis
Jakob Dahlin

Quality of patch testing patient´s own material-what could be improved
Katja Dicke

Cleaners’ and HCWs’ ability to recognize hand eczema
Kristina Ibler

The correlation between self-reported hand eczema and clinically based diagnosis in professional cleaners
Farnam Barati Sedah

15:05 – 16:20
EDU2: How to patch test individual substances?
Chair: Elke Weishaar, Heidelberg, Vera Mahler, Langen
Saturday, September 7th, 24
10:05 – 11:20
FS13: Occupational contact dermatitis: allergens and exposures
Chair: Richard Brans, Osnabrück / Katri Suuronen, Helsinki

Exposure to contact allergens in hairdressers
Cara Symanzik

Characterization of patients with occupational allergy to two new epoxy hardener compounds
Sari Suomela

Acrylates in artificial nails: can we rely on the listed ingredients?
Katri Suuronen

Contact allergies in construction workers: new and ongoing challenges
Tina Lejding

Contact dermatitis in food handlers in Trieste (Northern Italy)
Francesa Larese Filon

10:05 – 11:20
Hot topic: Cosmetics – clinical problems and risk assessment
Chair: An Gossens, Leuven / Pieter-Jan Coenraads, Groningen

A very short intro to cosmetic sensitisation
Pieter-Jan Coenraads

Read my lips: 10 challenging cases of allergic contact cheilitis
Olivier Aerts

Sensitizers in cosmetics-perspective of a risk assessor
Petra Kern

Polished perils: allergic contact
dermatitis caused by nail
cosmetics
Angelique Voorberg

Sensitizing impurities and
additives found in cosmetic
raw materials
Ewa Daniel

10:05 – 11:20
EDU3: How to diagnose contact uricaria and protein contact dermatitis
Chair: Ana Gimenez-Arnau, Barcelona

Epidemiology and Occupational relevance of the CSU
Jose Hernan Alfonso

Contact Urticaria, diagnosis and management
Mojca Bizjak

Protein Contact Dermatitis diagnosis and management
Charlotte Gotthard Mortz

Update on CUS clinical diagnosis, relevant triggers and treatment
Ana Gimenez-Arnau

11:50 – 13:05
FS14: Rubber
Chair: Jakob Schwensen, Copenhagen / Marie-Noëlle Crépy, Paris

Rubbers accelerators: occupational contact dermatitis and high risk occupations
Jakob Schwensen

Update on rubber gloves allergens
Marie-Noëlle Crépy

Cross-reactivity between thiurams and dithiocarbamates
Christoffer Kursawe Larsen

CEDMC, a new contact allergen in nitrile gloves
Ola Bergendorff

How to assess suitability of protective gloves against plastic chemicals?
Katri Suuronen

11:50 – 13:05
FS15: Tattoos
Chair: Steffen Schubert, Göttingen / Thomas Rustemeyer, Amsterdam

Adverse reactions to tattoos – clinical pictures
Thomas Rustemeyer

Tattoos inks – hazards, biodistribution and effects of irradiation
Ines Schreiver

The DKG tattoo series
Steffen Schubert

Patch testing pigments and decomposition products thereof in patients with suspected pigment allergy
Norbert Ipenburg

Tracking nickel-specific T cells in skin biopsies – a new way to established clinical relevance and to evaluate patch test reactions
Katherina Siewert

11:50 – 13:05
ESSCA / EBS working group meeting
Chair: Wolfgang Uter, Erlangen / Olivier Aerts, Antwerp