Cutaneous squamous cell carcinomas (SCC) associated with cosmetic skin whitening: 8 cases reported in Senegal

Reliability assessment and validation of the post-acne hyperpigmentation index (PAHPI) in a population from Sub-Saharan Africa in Senegal

BACKGROUND

A post-acne hyperpigmentation index (PAHPI) has been developed in the United States to better compare therapeutic modalities. Our aim in this study was to validate the PAHPI score in patients with skin type VI from sub-Saharan Africa.

PATIENTS AND METHODS

The study was conducted in Dakar, Senegal. Twenty-one patients with Fitzpatrick skin type VI, aged 17 to 55 years, presenting hyperpigmentation secondary to acne were included. Ongoing use of skin bleaching products or acne treatments was allowed. Four trained dermatologists rated the patients using the PAHPI. A narrow-band reflectance spectrophotometer (Mexameter MX-18, Cologne, Germany) was used to measure the degree of pigmentation of involved and adjacent skin on 6 representative facial lesions.

RESULTS

The average inter-rater reliability (weighted Kappa) showed substantial agreement for intensity (0.67), moderate agreement for number (0.53) and fair agreement for lesion size (0.28). Inter-rater reliability for the total PAHPI was excellent for both day 1 and day 2 (interclass correlation coefficient of 0.87 and 0.85, respectively; P<0.0001). Intra-rater reliability for total PAHPI ranged from 0.83 to 0.93 (P<0.0001). PAHPI scoring thus demonstrated excellent reliability both between and within raters. The association was moderate to substantial for all raters on both days (range for rho on day 1: 0.531 to 0.815; range for rho on day 2: 0.448 0.762). The correlations between the Mexameter (Courage and Khazaka) measurements and PAHPI scores showed moderate to substantial agreement.

CONCLUSION

Although tested primarily in African American women to date, PAHPI is also valid for patients from sub-Saharan Africa.

Multiple Squamous Cell Carcinoma in a Patient Using Skin Bleaching Products in Togo

Background

The cosmetic use of skin bleaching products is common among women in sub-Saharan Africa despite numerous reported cutaneous and systemic complications. We report the first case of squamous cell carcinoma in a woman using skin bleaching products in Togo. Case Report. A 65-year-old woman with a 30-year history of skin bleaching products use consulted in dermatology for a tumor of the neck that had been evolving for 2 years. There was no personal or family history of cancer. The patient was obese (BMI = 38.3 kg/m²) and had high blood pressure. Clinical examination noted multiple ulcerative and cauliflower tumors of the neck. The presence of stretch marks, skin atrophy, and ochronosis was noted in the examination of the rest of skin. There were no lymph nodes. HIV serology was negative. Histology of a tumor biopsy concluded to an invasive skin squamous cell carcinoma. The cervical, thoracic, abdominal, and pelvic TDM revealed pulmonary metastases. The patient underwent complete surgical removal of the right latero-cervical tumor. The left latero-cervical tumors were not removed because they infiltrated the large vessels. Chemotherapy before surgery was prescribed but not honored for financial reasons. The patient died 2 months after her first consultation in respiratory distress.

Conclusion

Squamous cell carcinoma is one of the complications of skin bleaching in sub-Saharan Africa. It is necessary to intensify awareness campaigns on the complications of this practice, in order to reduce their incidence, in our context where this practice is very frequent.

Awareness, Perception, and Utilization of Skin Lightening Agents Among Females of Asmara, Eritrea: A Cross-Sectional Study

Background

The use of skin lightening agents (SLAs) is common among African females with black skin color. Although they usually contain harmful ingredients and can cause complications, their use remains to be a common practice. This study was conducted to assess the awareness, perception, and utilization of SLAs among females residing in Asmara, Eritrea.

Methods

A cross-sectional analytical study using a quantitative approach was conducted in representative samples of all beauty salons available in Asmara from May to July, 2021. The study participants were selected using two-stage stratified cluster sampling and data were collected through a face-to-face interview using a structured questionnaire. Descriptive analysis and logistic regression, at bivariate and multivariate level, were performed.

Results

The study enrolled 721 females and 684 completed the study. The majority of the respondents had the perception that SLAs can make someone light colored (84.4%), look beautiful (67.8%), trendy and fashionable (55.0%), and white skin is more attractive than dark skin (58.8%). About two-thirds (64.2%) reported they had previously used SLAs, mainly influenced by friends (60.5%). Approximately 46% were current users, while 53.6% stopped it mainly due to adverse effects, fear of adverse effects and ineffectiveness. A total of 150 products including natural ingredients were mentioned being used to lighten the skin, and Aneeza, Natural face, and Betamethasone containing brands were among the top used products. The occurrence of at least one adverse effect due to the use of SLAs was 43.7%, while 66.5% were satisfied with the use of SLAs. Additionally, employment status and perception of SLAs were found to be determinants of being a current user.

Conclusion

Utilization of SLAs, including products containing harmful or medicinal ingredients, was prevalent among the females of Asmara city. Thus, coordinated regulatory interventions are recommended to tackle unsafe practices and raise public awareness to promote the safe use of cosmetics.

Observations by health care professionals about wound healing in Ghanaian patients who skin-bleach

Skin-bleaching is a common practice globally and is associated with many cutaneous and systemic health risks. Anecdotally, skin-bleaching is linked to impairments in wound healing, but there are little data to support the claim. This cross-sectional survey of health care professionals serving the Greater Accra Region, Ghana region investigates their observations of wound healing in patients who skin-bleach and their methods for screening skin-bleach use in patients. A 25-item self-administered questionnaire using 5-point Likert scale was distributed with convenient sampling to physicians and nurses employed at Ghanaian hospitals. Fifty-seven electronic and 78 paper responses were collected (total = 135). Most respondents agreed that wounds in skin-bleaching patients heal more slowly (4.22), are more prone to infection (4.11), haemorrhage (3.89), wound dehiscence (3.9), and are more difficult to manage (4.13). No respondent reported universal screening of all patients for skin-bleaching, but most ask about skin-bleaching if there is suspicion of it (42.2%). Our findings support the anecdotes about observable wound healing impairments in patients who skin-bleach. There is also wide variation in skin-bleaching screening practices, suggesting a need for guidelines to properly identify these patients and facilitate early risk prevention.

Squamous Cell Carcinoma Associated with Cosmetic Use of Bleaching Agents: About a Case in Ivory Coast

Voluntary skin depigmentation is defined as a set of procedures for obtaining skin clarification for cosmetic purposes. Skin cancers are possible complications, but rarely reported. We describe a case observed in Ivory Coast. A 52-year-old Ivorian woman consulted the Dermatology Department of the University Hospital of Treichville, Abidjan for an ulceration of the middle third of the right clavicle evolving for 10 months. A diagnosis of squamous cell carcinoma (SCC) was confirmed by histological examination of the tumour biopsy. Retroviral serology (HIV) was negative. An excision of the tumour was performed. The postoperative consequences were simple. We report a case of SCC following long-term use of depigmenting cosmetic products in a female phototype VI. SCC is the most common skin cancer among black Africans. It is secondary to precancerous lesions or takes place on a damaged skin. Concerning our patient, the onset of this carcinoma could be associated with the carcinogenic effect of hydroquinone and topical corticoids used for a long time. In addition, no precancerous lesion or preexisting condition were found. The chronic evolution without healing was in favour of a neoplastic origin achieved through the analysis of the biopsy sample.

[What's new in clinical dermatology?]

In this article, we performed a review of all new data of clinical relevance for the dermatologists that were published in the medical literature between September, 2017 and September, 2018. Besides advances that will be useful in day-to-day dermatological practice, we intended to give a more general perspective to this review by taking into account certain international health issues that might in final concern each of us in a globalized world. Focus were more particularly done on the following topics: infectious diseases (including sexually transmitted infections), neglected tropical diseases, adverse effects of drugs, bullous diseases, allergology, wound healing, dermatology on black skin, and public health dermatology.

Human health in relation to exposure to solar ultraviolet radiation under changing stratospheric ozone and climate

The Montreal Protocol has limited increases in the UV-B (280-315 nm) radiation reaching the Earth's surface as a result of depletion of stratospheric ozone. Nevertheless, the incidence of skin cancers continues to increase in most light-skinned populations, probably due mainly to risky sun exposure behaviour. In locations with strong sun protection programs of long duration, incidence is now reducing in younger age groups. Changes in the epidemiology of UV-induced eye diseases are less clear, due to a lack of data. Exposure to UV radiation plays a role in the development of cataracts, pterygium and possibly age-related macular degeneration; these are major causes of visual impairment world-wide. Photodermatoses and phototoxic reactions to drugs are not uncommon; management of the latter includes recognition of the risks by the prescribing physician. Exposure to UV radiation has benefits for health through the production of vitamin D in the skin and modulation of immune function. The latter has benefits for skin diseases such as psoriasis and possibly for systemic autoimmune diseases such as multiple sclerosis. The health risks of sun exposure can be mitigated through appropriate sun protection, such as clothing with both good UV-blocking characteristics and adequate skin coverage, sunglasses, shade, and sunscreen. New sunscreen preparations provide protection against a broader spectrum of solar radiation, but it is not clear that this has benefits for health. Gaps in knowledge make it difficult to derive evidence-based sun protection advice that balances the risks and benefits of sun exposure.