Publications by Per Helsing
66 publications found
Original articles
New, simplified versus standard photodynamic therapy (PDT) regimen for superficial and nodular basal cell carcinoma (BCC): A single-blind, non-inferiority, randomised controlled multicentre study
PLoS One, 19 (3), e0299718
DOI 10.1371/journal.pone.0299718, PubMed 38457386
Germline ATM variants predispose to melanoma: a joint analysis across the GenoMEL and MelaNostrum consortia
Genet Med, 23 (11), 2087-2095
DOI 10.1038/s41436-021-01240-8, PubMed 34262154
Clinical Suspicion Sensitivity of Nodular and Superficial Spreading Melanoma
Acta Derm Venereol, 101 (4), adv00427
DOI 10.2340/00015555-3782, PubMed 33686445
Genome-wide association meta-analyses combining multiple risk phenotypes provide insights into the genetic architecture of cutaneous melanoma susceptibility
Nat Genet, 52 (5), 494-504
DOI 10.1038/s41588-020-0611-8, PubMed 32341527
Ablative Fractional Laser-assisted Daylight Photodynamic Therapy for Actinic Keratoses of the Scalp and Forehead in Organ Transplant Recipients: A Pilot Study
Acta Derm Venereol, 99 (11), 1047-1048
DOI 10.2340/00015555-3274, PubMed 31386164
High mortality due to cutaneous melanoma in Norway: a study of prognostic factors in a nationwide cancer registry
Clin Epidemiol, 10, 537-548
DOI 10.2147/CLEP.S151246, PubMed 29780262
Validating 4 Staging Systems for Cutaneous Squamous Cell Carcinoma Using Population-Based Data: A Nested Case-Control Study
JAMA Dermatol, 154 (4), 428-434
DOI 10.1001/jamadermatol.2017.6428, PubMed 29516080
Melanoma staging: Varying precision and terminal digit clustering in Breslow thickness data is evident in a population-based study
J Am Acad Dermatol, 79 (1), 118-125.e1
DOI 10.1016/j.jaad.2018.03.023, PubMed 29580861
Long-term Change in the Risk of Skin Cancer After Organ Transplantation: A Population-Based Nationwide Cohort Study
JAMA Dermatol, 153 (12), 1270-1277
DOI 10.1001/jamadermatol.2017.2984, PubMed 29049612
Folliculotropic Mycosis Fungoides with Skewed T-cell Receptor CDR3 Motif: Suggestive of Lipid-antigen Selection?
Acta Derm Venereol, 97 (9), 1081-1086
DOI 10.2340/00015555-2722, PubMed 28597017
Cutaneous head and neck melanoma (CHNM): A population-based study of the prognostic impact of tumor location
J Am Acad Dermatol, 75 (5), 975-982.e2
DOI 10.1016/j.jaad.2016.06.048, PubMed 27546291
Genome-wide meta-analysis identifies five new susceptibility loci for cutaneous malignant melanoma
Nat Genet, 47 (9), 987-995
DOI 10.1038/ng.3373, PubMed 26237428
A Nationwide Study of Norwegian Patients with Hereditary Angioedema with C1 Inhibitor Deficiency Identified Six Novel Mutations in SERPING1
PLoS One, 10 (7), e0131637
DOI 10.1371/journal.pone.0131637, PubMed 26154504
MC1R gene variants and non-melanoma skin cancer: a pooled-analysis from the M-SKIP project
Br J Cancer, 113 (2), 354-63
DOI 10.1038/bjc.2015.231, PubMed 26103569
Treatment of basal cell carcinoma in Scandinavia: evidence or eminence based?
Int J Dermatol, 54 (9), 1030-3
DOI 10.1111/ijd.12599, PubMed 25660368
Cutaneous squamous cell carcinoma in Norway 1963-2011: increasing incidence and stable mortality
Cancer Med, 4 (3), 472-80
DOI 10.1002/cam4.404, PubMed 25620456
Vitamin D in Norwegian renal transplant recipients: A longitudinal study with repeated measurements in winter and summer
Eur J Dermatol, 25 (3), 234-9
DOI 10.1684/ejd.2015.2524, PubMed 26412038
Multiple distinct T-cell clones in folliculotropic mycosis fungoides
Am J Dermatopathol, 36 (12), 972-6
DOI 10.1097/DAD.0000000000000095, PubMed 25140661
The effect on melanoma risk of genes previously associated with telomere length
J Natl Cancer Inst, 106 (10)
DOI 10.1093/jnci/dju267, PubMed 25231748
Fine mapping of genetic susceptibility loci for melanoma reveals a mixture of single variant and multiple variant regions
Int J Cancer, 136 (6), 1351-60
DOI 10.1002/ijc.29099, PubMed 25077817
The prevalence of skin disorders in Norwegian paediatric renal transplant recipients
Acta Derm Venereol, 94 (4), 421-4
DOI 10.2340/00015555-1741, PubMed 24287733
Tumescent suction curettage vs. curettage only for treatment of axillary hyperhidrosis evaluated by subjective and new objective methods
Acta Derm Venereol, 94 (2), 215-20
DOI 10.2340/00015555-1671, PubMed 24002584
Intensified fractional CO2 laser-assisted photodynamic therapy vs. laser alone for organ transplant recipients with multiple actinic keratoses and wart-like lesions: a randomized half-side comparative trial on dorsal hands
Br J Dermatol, 169 (5), 1087-92
DOI 10.1111/bjd.12507, PubMed 23855503
Susceptibility to Cutaneous Squamous Cell Carcinoma in Renal Transplant Recipients Associates with Genes Regulating Melanogenesis Independent of their Role in Pigmentation
Biomark Cancer, 5, 41-7
DOI 10.4137/BIC.S12754, PubMed 24179397
Melanoma, mole or sebaceous wart?
Tidsskr Nor Laegeforen, 133 (11), 1167-8
DOI 10.4045/tidsskr.12.1484, PubMed 23759771
Clinical and histopathological features of folliculotropic mycosis fungoides: a Norwegian patient series
Acta Derm Venereol, 93 (3), 325-9
DOI 10.2340/00015555-1476, PubMed 23053197
A variant in FTO shows association with melanoma risk not due to BMI
Nat Genet, 45 (4), 428-32, 432e1
DOI 10.1038/ng.2571, PubMed 23455637
Melanocortin-1 receptor, skin cancer and phenotypic characteristics (M-SKIP) project: study design and methods for pooling results of genetic epidemiological studies
BMC Med Res Methodol, 12, 116
DOI 10.1186/1471-2288-12-116, PubMed 22862891
MC1R, ASIP, TYR, and TYRP1 gene variants in a population-based series of multiple primary melanomas
Genes Chromosomes Cancer, 51 (7), 654-61
DOI 10.1002/gcc.21952, PubMed 22447455
Photodynamic therapy for basal cell carcinomas in organ-transplant recipients
Clin Exp Dermatol, 37 (4), 367-9
DOI 10.1111/j.1365-2230.2011.04248.x, PubMed 22420420
Genome-wide association study identifies a new melanoma susceptibility locus at 1q21.3
Nat Genet, 43 (11), 1114-8
DOI 10.1038/ng.958, PubMed 21983785
Variability in patch test reactions--first report from the Norwegian Patch Test Registry
Contact Dermatitis, 62 (5), 309-13
DOI 10.1111/j.1600-0536.2010.01711.x, PubMed 20536479
Population-based prevalence of CDKN2A and CDK4 mutations in patients with multiple primary melanomas
Genes Chromosomes Cancer, 47 (2), 175-84
DOI 10.1002/gcc.20518, PubMed 18023021
Dermatitis herpetiformis presenting as ataxia in a child
Acta Derm Venereol, 87 (2), 163-5
DOI 10.2340/00015555-0220, PubMed 17340026
Ruby laser treatment of congenital melanocytic naevi--a pessimistic view
Acta Derm Venereol, 86 (3), 235-7
DOI 10.2340/00015555-0041, PubMed 16710582
[Treatment of malignant melanoma]
Tidsskr Nor Laegeforen, 124 (22), 2916-7
PubMed 15550966
[Surgical treatment of basal cell carcinoma]
Tidsskr Nor Laegeforen, 124 (21), 2740-2
PubMed 15534663
Small diameter melanoma: a follow-up of the Norwegian Melanoma Project
Br J Dermatol, 151 (5), 1081-3
DOI 10.1111/j.1365-2133.2004.06248.x, PubMed 15541089
[Pathological findings in the eye of children with facial nevus]
Tidsskr Nor Laegeforen, 121 (16), 1911-2
PubMed 11488182
Comparison of cyclosporin and UVAB phototherapy for intermittent one-year treatment of atopic dermatitis
Acta Derm Venereol, 81 (1), 22-7
DOI 10.1080/00015550120235, PubMed 11411908
[Diagnostic delay in malignant melanoma]
Tidsskr Nor Laegeforen, 120 (9), 1023-5
PubMed 10833960
[Malignant melanoma. Diagnosis, treatment and follow-up]
Tidsskr Nor Laegeforen, 117 (21), 3107-8
PubMed 9381447
Cutaneous malignant melanoma. Correlation between tumor characteristics and diagnostic delay in Norwegian patients
Eur. J. Dermatol., 7 (5), 359-361
[Nevus flammeus in small children treated pulsed dye laser]
Tidsskr Nor Laegeforen, 116 (29), 3474-5
PubMed 9019852
[The dermatoscop. An instrument for examination of pigmented skin lesions]
Tidsskr Nor Laegeforen, 112 (10), 1306-7
PubMed 1533736
Bullous impetigo caused by group A streptococci. A case report
Acta Derm Venereol, 72 (1), 50-1
PubMed 1350146
Contact dermatitis mimicking photodermatosis in a 1-year-old child
Contact Dermatitis, 24 (2), 140-1
DOI 10.1111/j.1600-0536.1991.tb01673.x, PubMed 2040156
Review articles
Malignant melanoma--diagnosis, treatment and follow-up in Norway
Tidsskr Nor Laegeforen, 133 (20), 2154-9
DOI 10.4045/tidsskr.12.1416, PubMed 24172628
[Immunosuppressive drugs and the development of skin cancer after organ transplantation]
Tidsskr Nor Laegeforen, 132 (18), 2064-8
DOI 10.4045/tidsskr.12.0389, PubMed 23038197
[Mohs surgery in basal cell carcinoma on the face]
Tidsskr Nor Laegeforen, 131 (24), 2475-9
DOI 10.4045/tidsskr.11.0343, PubMed 22170133
Guidelines for practical use of MAL-PDT in non-melanoma skin cancer
J Eur Acad Dermatol Venereol, 24 (5), 505-12
DOI 10.1111/j.1468-3083.2009.03430.x, PubMed 19807828
[Congenital melanocytic nevi--what should be said and done?]
Tidsskr Nor Laegeforen, 123 (9), 1204-5
PubMed 12789791
[Etiology of malignant melanoma--what do we know?]
Tidsskr Nor Laegeforen, 117 (7), 969-71
PubMed 9103011
Other articles
Cyclic photodynamic therapy delays first onset of actinic keratoses in renal transplant recipients: a 5-year randomized controlled trial with 12-month follow-up
J Eur Acad Dermatol Venereol, 36 (11), e946-e948
DOI 10.1111/jdv.18374, PubMed 35753046
Notice of Retraction and Replacement: Roscher et al. Validating 4 Staging Systems for Cutaneous Squamous Cell Carcinoma Using Population-Based Data: A Nested Case-Control Study. JAMA Dermatol. 2018;154(4):428-434
JAMA Dermatol, 154 (12), 1488-1489
DOI 10.1001/jamadermatol.2018.4023, PubMed 30419111
[An unusual sports injury]
Tidsskr Nor Laegeforen, 136 (21), 1814
DOI 10.4045/tidsskr.16.0112, PubMed 27883105
Association of Melanocortin-1 Receptor Variants with Pigmentary Traits in Humans: A Pooled Analysis from the M-Skip Project
J Invest Dermatol, 136 (9), 1914-1917
DOI 10.1016/j.jid.2016.05.099, PubMed 27251790
Dermatology and venereology
Tidsskr. Nor. Laegeforen., 135 (21), 1969
DOI 10.4045/tidsskr.15.0896
Correction: A Nationwide Study of Norwegian Patients with Hereditary Angioedema with C1 Inhibitor Deficiency Identified Six Novel Mutations in SERPING1
PLoS One, 10 (8), e0136011
DOI 10.1371/journal.pone.0136011, PubMed 26270546
Transitory contractile dermatosis--a new entity?
J Am Acad Dermatol, 71 (1), 197
DOI 10.1016/j.jaad.2013.09.062, PubMed 24947695
Onycholysis induced by nail hardener
Contact Dermatitis, 57 (4), 280-1
DOI 10.1111/j.1600-0536.2007.01121.x, PubMed 17868227
Hepatocellular focal nodular hyperplasia after danazol treatment for hereditary angio-oedema
Acta Derm Venereol, 86 (3), 272-3
DOI 10.2340/00015555-0057, PubMed 16710600
[Uncritical views on photodynamic therapy]
Tidsskr Nor Laegeforen, 121 (18), 2204-5
PubMed 11572005
The Asp84Glu variant of the MC1R gene in Norwegian melanoma patients
Acta Derm Venereol, 81 (1), 68-9
DOI 10.1080/000155501750208326, PubMed 11411928
Books
Malignt melanom i hud
Leo Pharma, Oslo, 15 s.
BIBSYS 071475133, ISBN 82-92347-11-9
Føflekkreft og annen hudkreft
In Kreftinfo, Den norske kreftforening, Oslo, 30 s.
BIBSYS 060365811