Displaying publications 1 - 20 of 130 in total

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  1. Apparau D, Apparau H, Mohamad I, Bhavaraju VMK
    AME Case Rep, 2018;2:4.
    PMID: 30264000 DOI: 10.21037/acr.2018.01.06
    Malignant melanoma (MM) of parotid gland is a rare condition. This pathology is often a result of secondary metastasis from primary lesions in the head and neck skin. A MM arising de novo in parotid gland is very rare. This malignant tumour is more prevalent in adults rather than children and it tends to have several distinct features. Treatment options are limited especially for an advanced lesion. Despite best treatments this condition carries a poor prognosis. This case details our experience in treating a child with MM of parotid gland without other primary cutaneous lesions.
    Matched MeSH terms: Skin Neoplasms
  2. Kanesen D, Zakaria Z, Ch'ng ES, Nandrajog P, Kandasamy R
    ANZ J Surg, 2019 03;89(3):261-264.
    PMID: 28513108 DOI: 10.1111/ans.14040
    Matched MeSH terms: Skin Neoplasms/surgery*
  3. Nor AM, Mohamad AM, Elagili F, Hamdan A
    ANZ J Surg, 2021 12;91(12):2855-2856.
    PMID: 34913562 DOI: 10.1111/ans.17303
    Matched MeSH terms: Skin Neoplasms*
  4. Sivakumar S
    Acta Cytol., 2007 Jul-Aug;51(4):583-5.
    PMID: 17718128 DOI: 10.1159/000325801
    BACKGROUND: Pilomatrixoma (pilomatrixoma, calcifying epithelioma of Malherbe) is a relatively uncommon, benign neoplasm arising from the skin adnexa. The tumor can cause diagnostic difficulty not only for the clinician but also for the cytologist.

    CASE: A 62-year-old woman presented with a right submandibular swelling of 4 months' duration. The clinical findings were highly suspicious for malignancy. A fine needle aspiration biopsy was performed. Three preliminary differential diagnoses were offered: mucoepidermoid carcinoma of the submandibular salivary gland, squamous cell carcinomatous deposit in a submandibular lymph node and calcifying odontogenic tumor. Computed tomography demonstrated no bony lesion. No primary site of squamous cell carcinoma could be identified. An excisional biopsy of the swelling was performed, and the histologic diagnosis of pilomatrixoma was made.

    CONCLUSION: The cytologic presentation of pilomatrixoma of the right submandibular region can masquerade as that of a malignant tumor, in this case mucoepidermoid carcinoma, squamous cell carcinoma or odontogenic tumor. This case delineates the cytomorphologic features of pilomatrixoma that may mimic carcinoma.
    Matched MeSH terms: Skin Neoplasms/diagnosis*; Skin Neoplasms/pathology*
  5. Kooi OK, Ling CY, Rodzi R, Othman F, Mohtarrudin N, Suhaili Z, et al.
    PMID: 25392583
    BACKGROUND: Melastoma malabathricum L. Smith (family Melastomaceae) is a shrub that has been used by the Malay practitioners of traditional medicine to treat various types of ailments. The present study aimed to determine the chemopreventive activity of methanol extract of M. malabathricum leaves (MEMM) using the standard 7,12-dimethylbenz(α)anthracene (DMBA)/croton oil-induced mouse skin carcinogenesis model.

    MATERIALS AND METHODS: In the initiation phase, the mice received a single dose of 100µl/100 µg DMBA (group I-V) or 100µl acetone (group VI) topically on the dorsal shaved skin area followed by the promotion phase involving treatment with the respective test solutions (100 µl of acetone, 10 mg/kg curcumin or MEMM (30, 100 and 300mg/kg)) for 30 min followed by the topical application of tumour promoter (100µl croton oil). Tumors were examined weekly and the experiment lasted for 15 weeks.

    RESULTS: MEMM and curcumin significantly (p<0.05) reduced the tumour burden, tumour incidence and tumour volume, which were further supported by the histopathological findings.

    CONCLUSION: MEMM demonstrated chemoprevention possibly via its antioxidant and anti-inflammatory activities, and the action of flavonoids like quercitrin.

    Matched MeSH terms: Skin Neoplasms/chemically induced; Skin Neoplasms/pathology; Skin Neoplasms/prevention & control*
  6. Mohd Tahir MKA, Ramanathan A, Foo GBT, Gopalan S, Zainal Abidin M, Abdul Rahman F
    Ann Dent, 2020;27(1):28-32.
    MyJurnal
    Pilomatrixoma is a relatively common benign tumour arising from the matrix and inner sheath of a normal hair follicle as well as hair cortex. It is usually presented as a superficial, solitary, firm mass which is asymptomatic and slowly growing. It accounts for about 0.2% of all routine skin specimens and may poses a diagnostic challenge as it may resemble other common benign lesions found in the head and neck region. We report a case of a 33-year old men presented to us with a pilomatrixoma of the right cheek, surgical management and histological findings.
    Matched MeSH terms: Skin Neoplasms
  7. 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
  8. Rownose CS, Mohamad Saupi MS, Sharif SZ, Lah NASN
    Ann Med Surg (Lond), 2021 May;65:102322.
    PMID: 33996055 DOI: 10.1016/j.amsu.2021.102322
    Introduction: Ductal Eccrine carcinoma (DEC) is a rare primary cutaneous tumor that exhibits both squamous and adnexal ductal differentiation. Due to its rarity in clinical practice we present as case of DEC and a literature review on the latest management of this rare disease.

    Case presentation: We report a case 41 years old female presented with lesion on the scalp and sternal mass, increasing in size with itchiness and erythematous for 6 months duration. Further CECT scan of brain and neck shows features of malignant left frontal scalp lesion with poor plane with overlying skin and underlying skull bone and CECT of thorax shows a large, irregular heterogeneously enhancing mass with necrotic center noted at right hilar within superior segment of right lower lobe, encasing right middle and lower lobe bronchi. Wedge biopsy of scalp lesion showed an intradermal lesion extensively infiltrating by malignant gland accompanied by desmoplasia and the tumor cells are seen extending into the surgical margins suggestive of ductal eccrine carcinoma.Clinical Discussion:This case highlights the importance and challenges in achieving early diagnosis coupled with the scarcity of information on these leads to difficulty in managing this patient.

    Conclusion: In managing Ductal Eccrine Carcinoma tumor, standard method of treatment for has not been established. However, wide surgical excision is the treatment of choice for localized lesions. Regarding prognosis, there is conflicting data published which we describe in this article.

    Matched MeSH terms: Skin Neoplasms
  9. Jayalakshmi P, Looi LM
    Ann Acad Med Singap, 1996 Jul;25(4):522-5.
    PMID: 8893922
    A review of consecutive biopsies of adnexal tumours from 112 patients, received by the Department of Pathology, University of Malaya, over a 13-year period was undertaken. The age range of the patients was from 1 to 84 years, with a mean of 29.8 years. Thirty-three (32%) patients were under 20 years of age. There were 68 females with a male to female ratio of 1.0:1.5. In 105 cases (93.7%), the neoplasm was solitary. The tumour measured less than 2 cm in the largest dimension in 103 cases (92%). The common sites of occurrence were the head and neck region (59%) and extremities (25%). Neoplasms of hair follicle origin accounted for 63.4% (71 cases) of all lesions. Intra-tumour deposition of amyloid was noted in one of the 14 cases of trichoepithelioma.
    Matched MeSH terms: Skin Neoplasms/epidemiology; Skin Neoplasms/pathology*
  10. Eshkoor SA, Ismail P, Rahman SA, Oshkour SA
    Arch Med Res, 2008 Oct;39(7):668-73.
    PMID: 18760195 DOI: 10.1016/j.arcmed.2008.06.003
    Basal cell carcinoma (BCC) develops predominantly in sun-exposed skin in fair-skinned individuals prone to sunburn. BCC typically occurs in adults. High exposure to ultraviolet (UV) radiation increases rate of developing BCC, a slowly growing tumor that occurs in hair-growing squamous epithelium and rarely metastasizes. In genetic studies, BCC patients have cell-cycle abnormalities of different parts of the signaling pathway. Retinoblastoma regulatory pathway is important in cell cycle arrest. In this pathway, p16INK4a, an inhibitor of Rb pathway, binds to CDK4 and CDK6 competitively with cyclin D1 to prevent phosphorylation of tumor suppressor pRB gene. Alteration of this pathway contributes to development of human cancers and also is effective in skin cancers. In this study, we analyzed mRNA expression using in situ RT-PCR and the role of immunohistochemical expression of p16INK4a in BCC.
    Matched MeSH terms: Skin Neoplasms/genetics*; Skin Neoplasms/metabolism; Skin Neoplasms/pathology
  11. Al-Naggar RA
    Asian Pac J Cancer Prev, 2013;14(8):4577-81.
    PMID: 24083705
    BACKGROUND: The objective of this study was to determine the practice of skin cancer prevention among Malaysian road traffic police officers.

    MATERIALS AND METHODS: This cross-sectional study involved 202 Malaysian Road Police Traffic officers. Inclusion criteria were those officers who work wearing white uniform regulating traffic. The survey took place at the Police Traffic Station, Jln Tun H.S. Lee, Kuala Lumpur, the main Head Quarters of Malaysian's Traffic Department where almost 600 police traffic officers are employed. The police traffic officers are given the task to take care of the traffic from the main office of the police station, then, according to the task, the officers drive to their given location for their duty. Each task is approved by the Chief Traffic Inspector of Kuala Lumpur. Data collected in this study were analyzed using SPSS 13, with the T-test for univariate analysis and multiple linear regression for multivariate analysis.

    RESULTS: A total of 202 road traffic police officers participated. The majority were older than 30 years of age, male, Malay, married, with secondary education, with monthly income more than 2000 Ringgit Malaysia (66.3%, 91.1%, 86.6%, 84.7%, 96%, 66.3%; respectively). Regarding the practice of skin cancer prevention, 84.6% of the study participants were found to wear hats, 68.9% sunglasses and 85.6% clothing that covering most of the body but only 16.9% used a sunscreen when they were outdoors. When analysis of the factors that influenced the practice of skin cancer prevention was performed, univariate analysis revealed that gender, age and monthly income significantly influenced the practice of skin cancer prevention. For multivariate analysis, gender, monthly income and race significantly influenced the practice of using sunscreen among road traffic police officers (p<0.001, p=0.019, p=0.027; respectively).

    CONCLUSIONS: The practice of skin cancer prevention among the traffic police officers showed good practices in terms of wearinga hat, sun glasses and clothing that covers most of the body. However, the study revealed a poor practice of the use of sunscreen. The factors that influence the practice of sunscreen use were found to be gender, income, and race. The study suggests that more awareness campaign among traffic police officers is needed. Providing sunscreen for free for police traffic officers should be considered by the Police authorities.

    Matched MeSH terms: Skin Neoplasms/etiology; Skin Neoplasms/prevention & control*
  12. Yeong LT, Hamid RA, Yazan LS, Khaza'ai H
    Asian Pac J Cancer Prev, 2013;14(4):2301-5.
    PMID: 23725131
    Ardisia crispa (Family: Myrsinaceae) is an evergreen, fruiting shrub that has been traditionally used as folklore medicine. Despite a scarcity of research publications, we have succeeded in showing suppressive effects on murine skin papillomagenesis. In extension, the present research was aimed at determining the effect of a quinone-rich fraction (QRF) isolated from the same root hexane extract on both initiation and promotion stages of carcinogenesis, at the selected dose of 30 mg/kg. Mice (groups I-IV) were initiated with a single dose of 7,12-dimethylbenz(α)anthracene (DMBA, 100 μg/100 μl) followed by repeated promotion of croton oil (1%) twice weekly for 20 weeks. In addition, group I (anti-initiation) received QRF 7 days before and after DMBA; group II (anti-promotion) received QRF 30 minutes before each croton oil application; group III (anti-initiation/ promotion) was treated with QRF as a combination of group I and II. A further two groups served as vehicle control (group V) and treated control (group VI). As carcinogen control, group IV showed the highest tumor volume (8.79±5.44) and tumor burden (3.60±1.17). Comparatively, group III revealed only 20% of tumor incidence, tumor burden (3.00±1.00) and tumor volume (2.40±1.12), which were significantly different from group IV. Group II also showed significant reduction of tumor volume (3.11), tumor burden (3.00) and tumor incidence (11.11%), along with prominent increase of latency period of tumor formation (week 12). Group I, nonetheless, demonstrated marked increment of tumor incidence by 40% with prompted latency period of tumor formation (week 7). No tumor formation was observed in groups V and VI. This study provided clear evidence of inhibitory effects of QRF during promotion period which was in agreement with our previous findings. The mechanism(s) underlying such effects have yet to be elucidated.
    Matched MeSH terms: Skin Neoplasms/chemically induced; Skin Neoplasms/pathology; Skin Neoplasms/prevention & control*
  13. Hamizah S, Roslida AH, Fezah O, Tan KL, Tor YS, Tan CI
    Asian Pac J Cancer Prev, 2012;13(6):2533-9.
    PMID: 22938417
    Annona muricata L (Annonaceae), commonly known as soursop has a long, rich history in herbal medicine with a lengthy recorded indigenous use. It had also been found to be a promising new anti-tumor agent in numerous in vitro studies. The present investigation concerns chemopreventive effects in a two-stage model of skin papillomagenesis. Chemopreventive effects of an ethanolic extract of A. muricata leaves (AMLE) was evaluated in 6-7 week old ICR mice given a single topical application of 7,12-dimethylbenza(α)anthracene (DMBA 100 μg/100 μl acetone) and promotion by repeated application of croton oil (1% in acetone/ twice a week) for 10 weeks. Morphological tumor incidence, burden and volume were measured, with histological evaluation of skin tissue. Topical application of AMLE at 30, 100 and 300 mg/kg significantly reduced DMBA/croton oil induced mice skin papillomagenesis in (i) peri-initiation protocol (AMLE from 7 days prior to 7 days after DMBA), (ii) promotion protocol (AMLE 30 minutes after croton oil), or (iii) both peri-initiation and promotion protocol (AMLE 7 days prior to 7 day after DMBA and AMLE 30 minutes after croton oil throughout the experimental period), in a dose dependent manner (p<0.05) as compared to carcinogen-treated control. Furthermore, the average latent period was significantly increased in the AMLE-treated group. Interestingly, At 100 and 300 mg/ kg, AMLE completely inhibited the tumor development in all stages. Histopathological study revealed that tumor growth from the AMLE-treated groups showed only slight hyperplasia and absence of keratin pearls and rete ridges. The results, thus suggest that the A.muricata leaves extract was able to suppress tumor initiation as well as tumor promotion even at lower dosage.
    Matched MeSH terms: Skin Neoplasms/chemically induced; Skin Neoplasms/drug therapy; Skin Neoplasms/prevention & control*
  14. Moad AI, Tan ML, Kaur G, Mabruk M
    Asian Pac J Cancer Prev, 2012;13(12):6239-44.
    PMID: 23464438
    BACKGROUND: The basal cell carcinoma (BCC) is the most common non-melanoma skin cancer (NMSK). BCC might develop because of the faulty cell cycle arrest. P15INK4b is a tumor suppressor gene, involved in cell cycle arrest and inactivated in most human cancers. The role of p15INK4b protein expression in the genesis of BCC is as yet unknown. In a previous study we showed the absence of p15INK4b expression in the majority of tissue microarray cores of cutaneous squamous cell carcinoma (SCCs), another type of non-melanoma skin cancer, indicating that p15INK4b could possibly be involved in the pathogenesis of cutaneous SCC. The aim of this study was to investigate p15INK4b protein expression in BCCs.

    MATERIALS AND METHOD: Protein expression of p15INK4b in 35 cases of BCC tissue arrays and 19 cases of normal human skin tissue was studied using an immunohistochemical approach.

    RESULTS: The expression of p15INK4b was not significantly different in the BCC cases as compared with normal human skin (p=0.356; p>0.05). In addition, there were no significant relationship between clinicopathologic variables of patients (age and sex) and p15INK4b protein expression.

    CONCLUSIONS: Our finding may indicate that p15INK4b protein expression does not play a role in the genesis of BCC.

    Matched MeSH terms: Skin Neoplasms/genetics*; Skin Neoplasms/metabolism*
  15. Roslida A, Fezah O, Yeong LT
    Asian Pac J Cancer Prev, 2011;12(3):665-9.
    PMID: 21627361
    Ardisia crispa (Family: Myrsinaceae) has been used as a traditional medicine for various ailments. Previous studies showed that Ardisia crispa possesses antimetastatic and anti-inflammatory properties. Nevertheless, research done on the plant is still limited. Therefore, the present study was designed to evaluate the suppression effect of Ardisia crispa root hexane (ACRH) extract on 7, 12-dimethylbenz (α) anthracene (DMBA)-induced mice skin tumor promotion in ICR mice with topical application twice weekly for 10 weeks. Results showed significant difference between treatment groups (mice treated with 30 mg/kg, 100 mg/kg and 300 mg/kg of ACRH extract; denoted as group I, II and III respectively) for tumor incidence and tumor burden (P<0.05). Significant reduction in tumor incidence (20%), tumor burden (1.5 ± 0.50), tumor volume (2.49 ± 1.70) and delayed latency period of tumor formation was observed in group I (30 mg/kg) in comparison to carcinogen control. This study indicates that ACRH extract could be a promising skin tumor promotion suppressing agent at a lower dosage (30 mg/kg). Further studies are required to elucidate the underlying mechanism(s) leading to this effect.
    Matched MeSH terms: Skin Neoplasms/chemically induced; Skin Neoplasms/pathology; Skin Neoplasms/prevention & control*
  16. Al-Naggar RA, Al-Naggar TH, Bobryshev YV
    Asian Pac J Cancer Prev, 2011;12(4):995-9.
    PMID: 21790240
    INTRODUCTION: Malignant melanoma in particular is one of the few remaining cancers with an increasing incidence.

    OBJECTIVES: The objective of this study is to explore the perceptions and opinions of young Malaysians towards skin cancer prevention.

    METHODOLOGY: Focus group discussions were conducted among 33 medical science students from Management and Science University (MSU), Shah Alam, Malaysia, using convenience sampling. Students were divided into 4 focus groups consisting of 8, 8, 9 and 8 students respectively. The facilitator wrote down the conversations and data obtained were classified into various categories and analyzed manually.

    RESULTS: The majority of the participants mentioned that overexposure to ultraviolet light is the commonest cause of skin cancer but also that the most benefit we get from sun ight is vitamin D synthesis. The majority mentioned that the best prevention measure for skin cancer is using a sunscreen, followed by limit exposure to the sun.

    CONCLUSION: The present study demonstrated there is a lack of knowledge regarding screening methods and prevention measures of skin cancer. Therefore, there is a need to establish health education unit in all universities to educate all university students regarding various health problems including skin cancer prevention.
    Matched MeSH terms: Skin Neoplasms/epidemiology*; Skin Neoplasms/prevention & control*; Skin Neoplasms/psychology
  17. Khajotia R, Raman S, Rajadurai P, Yaacob W
    Aust Fam Physician, 2010 Apr;39(4):219-20.
    PMID: 20372682
    Matched MeSH terms: Skin Neoplasms/diagnosis*; Skin Neoplasms/physiopathology
  18. Yeong LT, Abdul Hamid R, Saiful Yazan L, Khaza'ai H, Mohtarrudin N
    BMC Complement Altern Med, 2015;15(1):431.
    PMID: 26638207 DOI: 10.1186/s12906-015-0954-3
    Drastic increment of skin cancer incidence has driven natural product-based chemoprevention as a promising approach in anticancer drug development. Apart from its traditional usages against various ailments, Ardisia crispa (Family: Myrsinaceae) specifically its triterpene-quinone fraction (TQF) which was isolated from the root hexane extract (ACRH) was recently reported to exert antitumor promoting activity in vitro. This study aimed at determining chemopreventive effect of TQF against chemically-induced mouse skin tumorigenesis as well as elucidating its possible pathway(s).
    Matched MeSH terms: Skin Neoplasms/chemically induced; Skin Neoplasms/prevention & control*
  19. Looi CY, Moharram B, Paydar M, Wong YL, Leong KH, Mohamad K, et al.
    PMID: 23837445 DOI: 10.1186/1472-6882-13-166
    Centratherum anthelminticum (L.) Kuntze (scientific synonyms: Vernonia anthelmintica; black cumin) is one of the ingredients of an Ayurvedic preparation, called "Kayakalp", commonly applied to treat skin disorders in India and Southeast Asia. Despite its well known anti-inflammatory property on skin diseases, the anti-cancer effect of C. anthelminticum seeds on skin cancer is less documented. The present study aims to investigate the anti-cancer effect of Centratherum anthelminticum (L.) seeds chloroform fraction (CACF) on human melanoma cells and to elucidate the molecular mechanism involved.
    Matched MeSH terms: Skin Neoplasms/genetics; Skin Neoplasms/metabolism
  20. Qi Qi C, Ajit Singh V
    BMJ Case Rep, 2012;2012.
    PMID: 22865804 DOI: 10.1136/bcr-2012-006401
    Marjolin's ulcers are malignancies that arise from previously traumatised, chronically inflamed or scarred skin. We present a case with childhood burns, who had repeated irritation of his forearm skin with palm oil thorns that eventually led to malignant change.
    Matched MeSH terms: Skin Neoplasms/diagnosis*; Skin Neoplasms/etiology; Skin Neoplasms/surgery
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