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Fulltext Syringocystadenoma papilliferum arising in a naevus sebaceous

Faheem NAA, Kwan Z, Yong ASW, Ch'ng CC, Tan KK, Naicker M, et al.

Malays J Pathol, 2019 Apr;41(1):47-49.
PMID: 31025637

Naevus sebaceus is a cutaneous hamartoma with the potential of developing into benign or malignant neoplasms. Syringocystadenoma papilliferum (SCAP) have been reported to originate from naevus sebaceus. SCAP is a rare, benign adnexal skin tumour of apocrine or eccrine type of differentiation which typically presents as a nodule or a plaque on the scalp or face. We report a case of syringocystadenoma papilliferum arising in an undiagnosed pre-existing naevus sebaceus in a 56-year-old female.

Matched MeSH terms: Skin Diseases; Skin Neoplasms
Demonstration of a Nematode, Muspicea Sp., from the skin of laboratory mice

Ewert A

Med J Malaya, 1966 Jun;20(4):350.
PMID: 4224360
Matched MeSH terms: Skin*
Book Review: Handbook of Occupational Skin Diseases

Chew SS

Family Physician, 1991;3:71-71.

Matched MeSH terms: Skin; Skin Diseases
Janeway lesion and infective endocarditis

Cheo SW, Low QJ

QJM, 2021 05 19;114(3):219-220.
PMID: 32539138 DOI: 10.1093/qjmed/hcaa196
Matched MeSH terms: Skin Diseases*
Combination of Er:YAG laser and CO2 laser treatment on skin tissue

Anayb Baleg SM, Bidin N, Suan LP, Sidi Ahmad MF, Krishnan G, Johari AR, et al.

Photochem Photobiol, 2015 Jan-Feb;91(1):134-8.
PMID: 25327511 DOI: 10.1111/php.12369

Skin is the most important organ in our body, as it protects us from external environmental effects. Study the ability of the skin to stretch and the histological examinations of irradiated tissues have significant values in scientific and medical applications. Only a few studies have been done to study the correlation between epidermis ablation and the changes that occur at dermal levels when using dual lasers in ablative resurfacing mode. The aim of this work is to determine this correlation and to estimate the effects of multiple pulses on induced collagen remodeling and the strength of skin exposed with dual lasers in an in vivo rat model. All laser exposures led to mark improvement in the skin's strength compared to their own controls. The histological investigation indicated that there was a thickness loss in the epidermis layer with the induction of deep collagen coagulation in the dermis layer as the dual laser pulses increased. Additionally, more collagen fibers were remolded in the treated samples by dual wavelengths. We conclude that by combining dual lasers with multiple pulses targeted at not only the epidermis layer of the skin, it could also induce some heat diffusion in the dermis layer which causes more coagulation of collagen fibers. The tensile results confirmed by our histological data demonstrate that the strength of irradiated skin with dual wavelengths increased more than using both lasers separately on the skin tissue since more collagen is induced.

Matched MeSH terms: Skin Aging*
Status of cosmetic safety in Malaysia market: Mercury contamination in selected skin whitening products

Wan Mohamed Radzi CWJ, Nordin FNM

J Cosmet Dermatol, 2022 Dec;21(12):6875-6882.
PMID: 36181345 DOI: 10.1111/jocd.15429

BACKGROUND: Concern on cosmetic safety has been a subject of interest in recent years and is commonly associated with the exposure of the consumers to chemicals and impurities such as mercury contamination. Moreover, cancellations of notified cosmetic products were recurrently being reported by the Malaysia authority, namely the National Pharmaceutical Regulatory Authority (NPRA). Among the cosmetic categories was skin whitening product, which is still in high demand whilst reported to cause health risks. Besides, low number of studies on cosmetic safety and mercury contamination were recorded in Malaysia. The lack of scientific evidence on the safety and risks of the ingredients used in cosmetic formulation is a major concern to many consumers.
OBJECTIVE: The aim of this study was to identify the presence of mercury in skin whitening products, and to identify products containing mercury with the concentration exceeding the limitation of 1 ppm.
METHODOLOGY: A total of 104 whitening products were selected from the market via random sampling technique. The mercury concentration was determined by accredited laboratory, and the results were later compared with the cosmetic guideline of Malaysia and the list of banned products issued by NPRA.
RESULTS: A total of 51.9% (n = 54) whitening products were found registered under the NPRA Quest system and remaining 48.1% (n = 50) were non-registered products. None of the whitening products listed mercury as an ingredient, but laboratory analysis showed 15.4% (n = 16) of the products contained mercury with the concentration exceeding the maximum limit of 1 ppm. A total of 87.5% of the whitening products (14 out of 16) containing high mercury concentration were non-registered products which were not registered in NPRA Quest system. The exceeded concentration recorded ranged between 1.81 ppm and 838 123 ppm. Besides that, 50% (8 out of 16) of the products were found in the list of banned products issued by the NPRA of Malaysia.
CONCLUSIONS: This study presents the status of cosmetic products, particularly the skin whitening products available in Malaysia market. Concern arises when some of the products were found to have presence of harmful substances such as mercury. Even though the presence of mercury in a cosmetic product can either be non-intentional or intentionally used by the manufacturer in the cosmetic formulation, the impact of the ingredient can cause health risk to the users.

Matched MeSH terms: Skin/chemistry
Prevalence, comorbidities and mortality of generalized pustular psoriasis: A literature review

Prinz JC, Choon SE, Griffiths CEM, Merola JF, Morita A, Ashcroft DM, et al.

J Eur Acad Dermatol Venereol, 2023 Feb;37(2):256-273.
PMID: 36331364 DOI: 10.1111/jdv.18720

Generalized pustular psoriasis (GPP) is a rare auto-inflammatory skin disease characterised by acute episodes of sterile pustule formation. Diagnosis and treatment of the disease have historically been complicated by a lack of awareness, and no consistent global definition or clinical coding standards. Now acknowledged as a distinct clinical entity with a recognised genetic component, GPP can take a serious and life-threatening course due to systemic inflammatory complications and its association with various comorbidities. As with other rare diseases, there are significant challenges to understanding the epidemiology of GPP, notably a small patient population, non-standardised study methodologies and ethnic differences in its presentation. A clearer understanding of GPP is therefore required for clinicians to better manage patients with this rare condition. In this review article, we present an overview of the available data on GPP prevalence estimates in key demographics and report the frequency of genetic mutations associated with the disease. We detail the incidence of known comorbidities and summarise the data on mortality and assigned causes of death. Lastly, we discuss the various factors that impact the collection, interpretation and comparison of these data.

Matched MeSH terms: Skin Diseases, Vesiculobullous*
Diversity of Asian skin: A review on skin biophysical properties

Goh CF

Exp Dermatol, 2024 Jan;33(1):e14959.
PMID: 37864434 DOI: 10.1111/exd.14959

Asian is home to dozens of different ethnic groups that are characterised by fascinating social and cultural variations. Unfortunately, existing literature on the skin properties of Asians tends to group this diverse population solely based on skin colour, perpetuating the misconception and stereotype that all Asian skin is the same. While Asia is one of the largest continents in the world, the difference in the geographical location and climate have long shaped the population into various ethnic groups with significant differences in the collective and diverse customs, traditions, cultures and living habits. The diverse ethnic groups in this region hint us that their skin biophysical characteristics can be very different from each other. This review features the profiling of the distinctive skin biophysical properties of Asians. We learn more about the different ethnic groups in Asia and acknowledge the unique skin biophysical properties even from the same country.

Matched MeSH terms: Skin Pigmentation*
Fulltext Dermatopathology of 400 skin biopsies from Sarawak

Yap FBB

Indian J Dermatol Venereol Leprol, 2009 Sep-Oct;75(5):518-9.
PMID: 19736441 DOI: 10.4103/0378-6323.55407
Matched MeSH terms: Skin/pathology*; Skin Diseases/epidemiology; Skin Diseases/pathology
Mercury contamination in facial skin lightening creams and its health risks to user

Ho YB, Abdullah NH, Hamsan H, Tan ESS

Regul Toxicol Pharmacol, 2017 Aug;88:72-76.
PMID: 28554823 DOI: 10.1016/j.yrtph.2017.05.018

This study aims to determine concentrations of mercury in facial skin lightening cream according to different price categories (category I: skin lightening creams were determined during a preliminary market survey. Thereafter, twenty samples were purchased from various locations such as cosmetic stalls, beauty shops, pharmacies and street vendors based on their stratified price categories. Samples were extracted using microwave digester and analyzed using cold vapor atomic absorption spectrometry (CV-AAS). Non-carcinogenic chronic health risks for application of facial skin lightening cream were calculated using Dermal Absorption Dose (DAD) and Hazard Quotient (HQ). Concentrations of mercury in samples were less than the United States Food and Drug Administration (USFDA) permitted trace levels (<1 ppm) except for one sample from category III which was manufactured in China. Concentrations of mercury in facial skin lightening creams ranged from not detected to 1.13 mg kg-1. There was no significant association between concentrations of mercury with price categories (p = 0.12). There was no significant non-carcinogenic health risk due to daily application of the facial skin lightening creams based on assumption of 30 years exposure period (HQ

Matched MeSH terms: Skin Absorption; Skin Lightening Preparations/administration & dosage; Skin Lightening Preparations/analysis*; Skin Cream/administration & dosage; Skin Cream/analysis*
Fulltext The usage of cosmetic product containing skin-lightening ingredients among female nursing students in Sabah, Malaysia: a pre-liminary study

Deena Clare Thomas, Arlene C T, Emilia E, Noor Syaffa Shawani Y X H

Malaysian Journal of Medicine and Health Sciences, 2020;16(105):40-0.
MyJurnal

Introduction: Rooted form the ancient times, having a white and a delicate skin has been a dream of all women as it is perceived as a perfect beauty. Due to this high desideratum, the global beauty industry had taken an advantage to this target group promising an instant white skin for as early as three days. Global industry analysts (GIA) pre- dicted that this year 2020 the global market for skin lighteners will reach $23 billion. Despite the effectiveness of using skin-lightening, some had reported of having adverse effect including dermatological as well as neurological. Methods: This is a quantitative study using descriptive analysis approach to all nursing students in Sabah. The type of sampling is using snowball sampling methods. A questionnaire was developed and distributed to all nursing colleges in Sabah. Results: A total of 161 nursing students responded. Based on this study, most of students start are using cos- metic product in the age of15years old. Using an open-ended question, the top three cosmetic products containing skin-lightening ingredients use by students are Safi(27.9%), Garnier (25.5%)and Simple(16.1.%). Majority experience acne (47.5%) and skin irritation (18.8%)after using cosmetic products containing skin-lightening ingredients while 36.6% did not experience any skin problem. It is about80% concern about safety when choosing skin care contain skin-lightening ingredients,76.9% will make an effort to read leaflet provided prior to purchasing, 69.4% aware about the list of dangerous ingredients in choosing skin care contain skin-lightening ingredients, 78.1% aware about its side effect. Conclusion: The outcome of this preliminary study lead to the conclusion that nursing students in Sa- bah are aware that using a cosmetic product contain skin-lightening ingredient is harmful for them.

Matched MeSH terms: Skin; Skin Diseases; Skin Care
Health-related quality of life in patients with generalized pustular psoriasis: A systematic literature review

Choon SE, De La Cruz C, Wolf P, Jha RK, Fischer KI, Goncalves-Bradley DC, et al.

J Eur Acad Dermatol Venereol, 2024 Feb;38(2):265-280.
PMID: 37750484 DOI: 10.1111/jdv.19530

Generalized pustular psoriasis (GPP) is a rare, chronic, neutrophilic inflammatory skin disease characterized by episodes of widespread eruption of sterile, macroscopic pustules that can be accompanied by systemic inflammation and symptoms. A systematic literature review and narrative synthesis were conducted to determine the impact of GPP on patients' health-related quality of life (HRQoL) and patient-reported severity of symptoms and to compare its impact to patients with plaque psoriasis (plaque PsO). Searches were undertaken in Embase, MEDLINE and the Cochrane Library from 1 January 2002 to 15 September 2022. Screening was carried out by two reviewers independently. Outcome measures included generic (e.g. EQ-5D, SF-36) and dermatology-specific (e.g. DLQI) clinical outcome assessments, and other relevant patient-reported outcome measures (PROMs) (e.g. severity of pain measured by a numerical rating scale). Overall, 20 studies were found to be eligible for inclusion, of which seven also had data for plaque PsO. The DLQI was the most frequently reported outcome measure (16 out of 20 studies). When reported, mean DLQI (SD) scores varied from 5.7 (1.2) to 15.8 (9.6) across the studies, indicating a moderate to very large effect on HRQoL; the wide range of scores and large SDs were explained by the small population sizes (n ≤ 12 for all studies except two). Similar ranges and large SDs were also observed for other measures within individual studies. However, in general, people with GPP reported a greater impact of their skin condition on HRQoL, when compared to people with plaque PsO (i.e. higher DLQI scores) and higher severity for itch, pain and fatigue. This systematic review highlighted the need for studies with a larger population size, a better understanding of the impact of cutaneous and extracutaneous symptoms and comorbidities on HRQoL during and between GPP flares, and outcome measures specifically tailored to the unique symptoms and the natural course/history of GPP.

Matched MeSH terms: Skin; Skin Diseases, Vesiculobullous*
Fulltext Preparation and characterization of a curcumin nanoemulsion gel for the effective treatment of mycoses

Al Fatease A, Alqahtani A, Khan BA, Mohamed JMM, Farhana SA

Sci Rep, 2023 Dec 20;13(1):22730.
PMID: 38123572 DOI: 10.1038/s41598-023-49328-2

Fungal infections of skin including mycoses are one of the most common infections in skin or skins. Mycosis is caused by dermatophytes, non-dermatophyte moulds and yeasts. Various studies show different drugs to treat mycoses, yet there is need to treat it with applied drugs delivery. This study was designed to prepare a bio curcumin (CMN) nanoemulsion (CMN-NEs) for transdermal administration to treat mycoses. The self-nanoemulsification approach was used to prepare a nanoemulsion (NE), utilizing an oil phase consisting of Cremophor EL 100 (Cre EL), glyceryl monooleate (GMO), and polyethylene glycol 5000 (PEG 5000). Particle size (PS), polydispersity index (PDI), zeta potential (ZP), Fourier transform infrared (FTIR) spectrophotometric analysis, and morphological analyses were performed to evaluate the nanoemulsion (NE). The in vitro permeation of CMN was investigated using a modified vertical diffusion cell with an activated dialysis membrane bag. Among all the formulations, a stable, spontaneously produced nanoemulsion was determined with 250 mg of CMN loaded with 10 g of the oil phase. The average droplet size, ZP, and PDI of CMN-NEs were 90.0 ± 2.1 nm, - 7.4 ± 0.4, and 0.171 ± 0.03 mV, respectively. The release kinetics of CMN differed from zero order with a Higuchi release profile as a result of nanoemulsification, which also significantly increased the flux of CMN permeating from the hydrophilic matrix gel. Overall, the prepared nanoemulsion system not only increased the permeability of CMN but also protected it against chemical deterioration. Both CMN-ME (24.0 ± 0.31 mm) and CMN-NE gel (29.6 ± 0.25 mm) had zones of inhibition against Candida albicans that were significantly larger than those of marketed Itrostred gel (21.5 ± 0.34 mm). The prepared CMN-NE improved the bioavailability, better skin penetration, and the CMN-NE gel enhanced the release of CMN from the gel matrix on mycotic patients.

Matched MeSH terms: Skin/metabolism; Skin Absorption
Fulltext Hyperspectral venous image quality assessment for optimum illumination range selection based on skin tone characteristics

Shahzad A, Saad MN, Walter N, Malik AS, Meriaudeau F

Biomed Eng Online, 2014;13:109.
PMID: 25087016 DOI: 10.1186/1475-925X-13-109

Subcutaneous veins localization is usually performed manually by medical staff to find suitable vein to insert catheter for medication delivery or blood sample function. The rule of thumb is to find large and straight enough vein for the medication to flow inside of the selected blood vessel without any obstruction. The problem of peripheral difficult venous access arises when patient's veins are not visible due to any reason like dark skin tone, presence of hair, high body fat or dehydrated condition, etc.

Matched MeSH terms: Skin/blood supply*; Skin Pigmentation*
Fulltext Stagnation point flow and mass transfer with chemical reaction past a stretching/shrinking cylinder

Najib N, Bachok N, Arifin NM, Ishak A

Sci Rep, 2014;4:4178.
PMID: 24569547 DOI: 10.1038/srep04178

This paper is about the stagnation point flow and mass transfer with chemical reaction past a stretching/shrinking cylinder. The governing partial differential equations in cylindrical form are transformed into ordinary differential equations by a similarity transformation. The transformed equations are solved numerically using a shooting method. Results for the skin friction coefficient, Schmidt number, velocity profiles as well as concentration profiles are presented for different values of the governing parameters. Effects of the curvature parameter, stretching/shrinking parameter and Schmidt number on the flow and mass transfer characteristics are examined. The study indicates that dual solutions exist for the shrinking cylinder but for the stretching cylinder, the solution is unique. It is observed that the surface shear stress and the mass transfer rate at the surface increase as the curvature parameter increases.

Matched MeSH terms: Skin
Cutaneous nodules in Irrawaddy dolphins: an emerging disease in vulnerable populations

Van Bressem MF, Minton G, Sutaria D, Kelkar N, Peter C, Zulkarnaen M, et al.

Dis Aquat Organ, 2014 Jan 16;107(3):181-9.
PMID: 24429469 DOI: 10.3354/dao02689

The presence of cutaneous nodules is reported in vulnerable populations of Irrawaddy dolphins Orcaella brevirostris from Malaysia (Kuching, Bintulu-Similajau, Kinabatangan-Segama and Penang Island), India (Chilika Lagoon) and Bangladesh (Sundarbans). Approximately 5700 images taken for photo-identification studies in 2004 to 2013 were examined for skin disorders. Nodules were detected in 6 populations. They appeared as circumscribed elevations of the skin and varied in size from 2 to >30 mm, were sparse or numerous and occurred on all visible body areas. In 8 photo-identified (PI) dolphins from India and Malaysia, the lesions remained stable (N = 2) or progressed (N = 6) over months but did not regress. The 2 most severely affected individuals were seen in Kuching and the Chilika Lagoon. Their fate is unknown. Cutaneous nodules were sampled in a female that died in a gillnet in Kuching in 2012. Histologically, the lesions consisted of thick collagen bundles covered by a moderately hyperplasic epithelium and were diagnosed as fibropapillomas. Whether the nodules observed in the other O. brevirostris were also fibropapillomas remains to be investigated. Disease prevalence ranged from 2.2% (N = 46; Bintulu-Similajau) to 13.9% (N = 72; Chilika) in 4 populations from Malaysia and India. It was not significantly different in 3 study areas in eastern Malaysia. In Chilika, prevalence was significantly higher (p = 0.00078) in 2009 to 2011 (13.9%) than in 2004 to 2006 (2.8%) in 72 PI dolphins. The emergence of a novel disease in vulnerable O. brevirostris populations is of concern.

Matched MeSH terms: Skin Diseases/epidemiology; Skin Diseases/pathology; Skin Diseases/veterinary*
Occupational skin diseases

Daljit SN

Family Practitioner, 1984;7:22-26.

Matched MeSH terms: Skin Diseases
Fulltext Extensive Facial Trichoblastoma - A Rare and Disfiguring Condition

Abd Rahim SNH, Ahmad NA, Mohamed-Yassin MS

Am J Case Rep, 2021 Jun 25;22:e932320.
PMID: 34170887 DOI: 10.12659/AJCR.932320

BACKGROUND Trichoblastoma is a rare, benign, cutaneous adnexal neoplasm arising from rudimentary hair follicles. The incidence and prevalence in the general population is unknown. However, most cases occur in adults aged 40 years and older. CASE REPORT A 62-year-old woman presented to our primary care clinic for a hypertension and diabetes followup visit. The doctor, who had never seen the patient before, noticed several small lumps over the patient's eyebrows. After she removed her headscarf and face mask for a thorough examination, numerous skin-colored papules and nodules were seen on her nose, nasal bridge, forehead, and around her eyebrows. She was referred to a dermatologist, and a skin biopsy showed well-circumscribed dermal nests of basaloid cells, with peripheral palisading, and keratin horn cysts surrounded by dense fibrous stroma. These features were consistent with trichoblastoma. She was then referred to a plastic surgeon to discuss further management options. The patient finally chose laser ablation as she was fearful of the other more invasive surgical options. CONCLUSIONS This is a very rare case of extensive facial trichoblastoma. It highlights the need for clinicians to ensure optimal exposure when examining patients. It also highlights the role of biopsies for skin lesions of uncertain etiology. In this case, it helped to rule out basal cell carcinoma, which can be a more locally destructive condition than trichoblastoma. This case also serves as a reminder about the need for ongoing review and referral for further management for conditions for which previous treatment was unsuccessful.

Matched MeSH terms: Skin Diseases*; Skin Neoplasms*
Fulltext Calcifying Epithelial Odontogenic Tumour - Case Report And Review Of The Literature

Khoo, Suan Phaik, Jalil, N., Yaacob, H.B.

Ann Dent, 1997;4(1):-.
MyJurnal

The calcifying epithelial odontogenic tumour (CEOT) is a rare benign odontogenic neoplasm which was first described by Pindborg in 1955. It accounts for less than 1% of all odontogenic lesions. A case of CEOT which presented together with cardiac abnomlalities is presented here and the literature of CEOT is reviewed.

Matched MeSH terms: Skin Neoplasms
Fulltext Conchological and molecular analysis of the "non-scaly" Bornean Georissa with descriptions of three new species (Gastropoda, Neritimorpha, Hydrocenidae)

Zacaery Khalik M, P Hendriks K, J Vermeulen J, Menno Schilthuizen

Zookeys, 2019;840:35-86.
PMID: 31065227 DOI: 10.3897/zookeys.840.33326

The Bornean representatives of the genus Georissa (Hydrocenidae) have small, dextral, conical, calcareous shells consisting of ca. three teleoconch whorls. Our recent study on the Georissa of Malaysian Borneo has revealed high intra- and inter-specific variation in the "scaly" group (a group of species with striking scale-like surface sculpture). The present study on the "non-scaly" Georissa is the continuation of the species revision for the genus. The "non-scaly" species are also diverse in shell sculptures. This informal group comprises Georissa with subtle spiral and/or radial sculpture. The combination of detailed conchological assessment and molecular analyses provides clear distinctions for each of the species. Conchological, molecular, and biogeographic details are presented for 16 species of "non-scaly" Georissa. Three of these are new to science, namely Georissacorrugatasp. n., Georissainsulaesp. n., and Georissatrusmadisp. n.

Matched MeSH terms: Skin

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