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Dermoscopy features of atypical fibroxanthoma: A multicenter study of the International Dermoscopy Society

E. Moscarella, S. Piana, F. Specchio, A. Kyrgidis, G. Nazzaro, ML. Eliceche, F. Savoia, L. Bugatti, G. Filosa, I. Zalaudek, F. Scarfi, M. Inskip, C. Rosendahl, JH. Pyne, G. Siggs, AK. Toğral, H. Cabo, L. Drlik, A. Lallas, C. Longo, G. Argenziano,

. 2018 ; 59 (4) : 309-314. [pub] 20180323

Jazyk angličtina Země Austrálie

Typ dokumentu srovnávací studie, časopisecké články, multicentrická studie

Perzistentní odkaz   https://www.medvik.cz/link/bmc19012763

BACKGROUND/OBJECTIVES: Little is known about the dermoscopic features of atypical fibroxanthoma. METHODS: This was a case-control study. Atypical fibroxanthoma lesions were compared with a control group with non-melanoma skin cancer. RESULTS: Altogether 40 atypical fibroxanthoma were collected. Most developed in men (93%), appearing mainly as nodular (63%), amelanotic (93%) and ulcerated (78%) lesions. Most lesions were located on the scalp (55%) and the ears (13%). Dermoscopically, most atypical fibroxanthoma displayed red (83%) and white (70%) structureless areas and irregular linear vessels (43%). A series of features achieved statistical significance when comparing atypical fibroxanthoma with non-melanoma skin cancer. The presence of red and white structureless areas and white lines, and the absence of yellowish-white opaque scales, hairpin vessels and arborising vessels were predictive of atypical fibroxanthoma in univariate analysis. However, when squamous cell carcinoma was excluded from the analysis, none of the criteria achieved statistical significance. When basal cell carcinoma was excluded, three variables achieved statistical significance in predicting atypical fibroxanthoma: red, structureless areas, the absence of opaque yellowish-white scales and absence of white circles. CONCLUSIONS: Atypical fibroxanthomas seem to be barely distinguishable from basal cell carcinoma dermoscopically, but they are more easily distinguishable from a well to moderately differentiated squamous cell carcinoma. A histopathological examination is needed for the final diagnosis.

1st Department of Dermatology Aristotle University Thessaloniki Greece

Department of Dermatology Šumperk Hospital Šumperk Czech Republic

Department of Physiopathology and Transplantation University of Milan UOC Dermatologia Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy

Dermatology and Skin Cancer Unit Arcispedale Santa Maria Nuova IRCCS Reggio Emilia Italy

Dermatology and Skin Cancer Unit Arcispedale Santa Maria Nuova IRCCS Reggio Emilia Italy Dermatology Unit University of Campania Luigi Vanvitelli Naples Italy

Dermatology and Skin Cancer Unit Arcispedale Santa Maria Nuova IRCCS Reggio Emilia Italy Dermatology Unit University of Modena and Reggio Emilia Modena Italy

Dermatology Clinic University of Trieste Hospital Maggiore Trieste Italy

Dermatology Unit 'Carlo Urbani' Hospital Jesi Italy

Dermatology Unit Italian Hospital of Buenos Aires Buenos Aires Argentina

Dermatology Unit School of Medicine University of Buenos Aires Buenos Aires Argentina

Dermatology Unit University of Campania Luigi Vanvitelli Naples Italy

Dermatology Unit University of Florence Florence Italy

Faculty of Medicine Department of Dermatology Başkent University Ankara Turkey

Pathology Unit Arcispedale Santa Maria Nuova IRCCS Reggio Emilia Italy

School of Medicine University of Queensland Brisbane Queensland Australia

School of Medicine University of Queensland Brisbane Queensland Australia School of Medicine Tehran University of Medical Sciences Tehran Iran

Skin Patrol Skin Cancer Clinic Melbourne Victoria Australia

SunDoctors Skin Cancer Clinic Adelaide South Australia Australia

Unit of Dermatology AUSL Ravenna Ravenna Italy

Citace poskytuje Crossref.org

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$a BACKGROUND/OBJECTIVES: Little is known about the dermoscopic features of atypical fibroxanthoma. METHODS: This was a case-control study. Atypical fibroxanthoma lesions were compared with a control group with non-melanoma skin cancer. RESULTS: Altogether 40 atypical fibroxanthoma were collected. Most developed in men (93%), appearing mainly as nodular (63%), amelanotic (93%) and ulcerated (78%) lesions. Most lesions were located on the scalp (55%) and the ears (13%). Dermoscopically, most atypical fibroxanthoma displayed red (83%) and white (70%) structureless areas and irregular linear vessels (43%). A series of features achieved statistical significance when comparing atypical fibroxanthoma with non-melanoma skin cancer. The presence of red and white structureless areas and white lines, and the absence of yellowish-white opaque scales, hairpin vessels and arborising vessels were predictive of atypical fibroxanthoma in univariate analysis. However, when squamous cell carcinoma was excluded from the analysis, none of the criteria achieved statistical significance. When basal cell carcinoma was excluded, three variables achieved statistical significance in predicting atypical fibroxanthoma: red, structureless areas, the absence of opaque yellowish-white scales and absence of white circles. CONCLUSIONS: Atypical fibroxanthomas seem to be barely distinguishable from basal cell carcinoma dermoscopically, but they are more easily distinguishable from a well to moderately differentiated squamous cell carcinoma. A histopathological examination is needed for the final diagnosis.
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