Browsing by Author "Paoli, John (14631010100)"

Background: Fitzpatrick skin phototype classification is widely used to assess risk factors for skin cancers. This skin type evaluation is easy to use in clinical practice but is not always applied as initially described, nor practiced in a standardised way. This can have implications on the results of relevant dermato-epidemiological studies. Objectives: To demonstrate, in a large multinational setting, that the phrasing of questions on sun sensitivity can have a strong impact on the perception and reporting of skin phototype, as well as the importance of a standardised procedure for phototype assessment. Materials & methods: Using data collected from 48,258 screenees of the Euromelanoma campaign in six European countries from 2009 to 2011, we analysed the impact of change in the question phrasing on phototype classification in each country. Results: Changing the wording of a question to assess the phototype of a person also significantly influenced the classification of phototypes in different countries (p<0.001 for each country). The difference essentially corresponded to a shift towards a less sun-sensitive skin type when a shorter question that did not include skin colour description was used. The only exception was Portugal where phototype was not patient-assessed and classification shifted towards a more sun-sensitive phototype. Results were statistically significant and highly consistent, irrespective of gender. Conclusions: The phrasing of questions on skin type is important and substantially influences reporting. A standardized procedure to classify phototypes should be used in order to obtain comparable data between studies. © 2017, John Libbey Eurotext. All rights reserved.

Background: The detection of cutaneous metastases (CMs) from various primary tumours represents a diagnostic challenge. Objectives: Our aim was to evaluate the general characteristics and dermatoscopic features of CMs from different primary tumours. Methods: Retrospective, multicentre, descriptive, cross-sectional study of biopsy-proven CMs. Results: We included 583 patients (247 females, median age: 64 years, 25%–75% percentiles: 54–74 years) with 632 CMs, of which 52.2% (n = 330) were local, and 26.7% (n = 169) were distant. The most common primary tumours were melanomas (n = 474) and breast cancer (n = 59). Most non-melanoma CMs were non-pigmented (n = 151, 95.6%). Of 169 distant metastases, 54 (32.0%) appeared on the head and neck region. On dermatoscopy, pigmented melanoma metastases were frequently structureless blue (63.6%, n = 201), while amelanotic metastases were typified by linear serpentine vessels and a white structureless pattern. No significant difference was found between amelanotic melanoma metastases and CMs of other primary tumours. Conclusions: The head and neck area is a common site for distant CMs. Our study confirms that most pigmented melanoma metastasis are structureless blue on dermatoscopy and may mimic blue nevi. Amelanotic metastases are typified by linear serpentine vessels and a white structureless pattern, regardless of the primary tumour. © 2024 European Academy of Dermatology and Venereology.

Different nonpigmented skin lesion in trunk area such as Extra Genital Lichen Sclerosis et Atrophicus, Lichen planus, Basal cell carcinoma, MAY globules, Invasive Squamous Cell Carcinoma, Fibroephitelioma of Pinkus, Hypomelanotic melanoma, Collision lesions, Bowen disease, Molluscum contagiosum, Lynmphangioma, Clear Cell Acanthoma, Paget’s disease are described. The main dermoscopic characteristics of these pink lesions are mentioned. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.