Dr Björn Thomas
Consultant Dermatologist
Skin Health & Allergy
Sub-specialties: Dermatology, Acne, Rosacea, Eczema, Skin Cancer, Sun Damage.
02036532007
Overview
Dr Björn Thomas is a Consultant Dermatologist. Alongside his private practice, he works as a Consultant at Guy's and St Thomas' Hospital, specialising in Dermato-Oncology (General Medical Council specialist register) where he is the lead of largest melanoma service in the country. He also holds a PhD from his work on atopic eczema.
About Dr Björn Thomas
Dr Thomas graduated from St George's Hospital Medical School, London with a and was awarded the Brackenbury Prize for Medicine and Surgery. He completed his post-graduate medical training in London and his Dermatology training at Bart's Health NHS Trust and the Royal Free Hospital.
His PhD work investigating the genetic architecture of atopic eczema and the role of environmental stress / pollution was awarded the Royal Society of Medicine Trainee Research Prize and published in numerous research articles.
After his general Dermatology training, he completed a Dermatology Fellowship in Dermato-Oncology at Guy's and St Thomas' Hospital focused on cutaneous lymphoma, graft-versus host disease and melanoma, in which he is now a specialist.
Dr Thomas has extensive experience across the range of dermatology and is happy to see patients with all skin conditions including acne, rosacea, atopic eczema/dermatitis, psoriasis, mole checks and skin cancers. He performs skin surgery including the removal of benign lesions and steroid injections for keloid scars, acne and hidradenitis suppurativa.
Areas of Expertise
Dr Björn Thomas is an expert in the following conditions:
- Acne
- Rosacea
- Eczema
- Sun damage
- Skin Cancers
- Melanoma
He is also an expert in the following tests and treatments:
- Steroid injections for scars and acne
- Cryotherapy for warts, sun spots, and non-cancerous lumps
- Skin biopsies and excision/removal of non-cancerous/cancerous skin lesions
- Laser treatment for acne scars and post-surgical scar remodeling
Additional Information
Dr Thomas' current clinical posts and locations:
- St John’s Institute of Dermatology, Guy’s Hospital
- Skin55, 55 Harley Street
His active memberships:
- Royal College of Physicians, Royal Society of Medicine
Research Highlights
Notable publications:
nonmyeloablative allogeneic stem cell transplantation with TSEB TLI and ATG for Mycosis
Fungoides and Sezary Syndrome. Bone Marrow Transplant (2024).
https://doi.org/10.1038/s41409-024-02236-z
Carsten Flohr, Anna Rosala-Hallas, Ashley P Jones, Paula Beattie, Susannah Baron, Fiona
Browne, Sara J Brown, Joanna E Gach, Danielle Greenblatt, Ross Hearn, Eva Hilger, Ben
Esdaile, Michael J Cork, Emma Howard, Marie-Louise Lovgren, Suzannah August, Farhiya
Ashoor, Paula R Williamson, Tess McPherson, Donal O’Kane, Jane Ravenscroft, Lindsay
Shaw, Manish D Sinha, Catherine Spowart, Leonie S Taams, Bjorn R Thomas, Mandy
Wan, Tracey H Sach, Alan D Irvine, the TREAT Trial Investigators , Efficacy and safety of
ciclosporin versus methotrexate in the treatment of severe atopic dermatitis in children
and young people (TREAT): a multicentre parallel group assessor-blinded clinical
trial, British Journal of Dermatology, 2023. PMID: 37722926 https://doi.org/10.1093/bjd/ljad281
Thomas BR, Tan XL, Van Duijvenboden S, Hogan SC, Hughes AJ, Tawfik SS, Dhoat S, Atkar
R, Robinson EJ, Rahman SR, Rahman S, Ahmed RA, Begum R, Khanam H, Bourne EL,
Wozniak EL, Mein CA, Kelsell DP, O’Toole EA. Deep palmar phenotyping in atopic eczema:
patterns associated with filaggrin variants, disease severity and barrier function in a
South Asian population. British Journal of Dermatology. 2023 February 25. PMID:
36840480 https://doi.org/10.1093/bjd/ljad036
SR, Rahman S, Ahmed RA, Begum R, Khanam H, Kelsell DP, Grigg J, Knell RJ, O’Toole EA.
Modelling of temporal exposure to the ambient environment and eczema severity. JID
Innovations. 2021 October 8. PMID: 34993502 https://doi.org/10.1016/j.xjidi.2021.100062
Steele L, Velazquez-Pimentel D, Thomas BR. Do AI models recognize rare, aggressive skin
cancers? An assessment of a direct-to-consumer application in the diagnosis of Merkel
cell carcinoma and amelanotic melanoma. Journal of the European Academy of
Dermatology and Venerology. 2021 July 9. PMID 34242437 https://doi.org/10.1111/jdv.17517
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Mar 2025
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If your insurer is not listed, please contact us to confirm your coverage. Please note this does not guarantee coverage or fee assurance. Patients should confirm with their insurer to ensure coverage, check if the doctor is fee-assured, or verify if their policy includes the doctor in question.