1.A Practical Approach to Genital Growths and Rashes
The Singapore Family Physician 2013;39(1 (Supplement)):48-50
Genital rashes and growths are not uncommon and sometimes uncomfortable reasons for seeking medical attention. It is important to make the correct diagnosis after a tactful history and a meticulous examination. The diagnosis is usually clinical; near-patient investigations may be required to confirm it but may not be easily available or convenient. Patients often fear they may have been infected with a sexually transmitted infection (which should be excluded) or even a malignancy which often heightens their anxiety. Physicians should be familiar with normal and variants of anatomy and the genital specific symptoms and signs of common conditions and their respective management aspects.
2.Watch the Tongue.
Annals of the Academy of Medicine, Singapore 2015;44(12):575-576
Adult
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Coinfection
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HIV Infections
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complications
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Humans
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Male
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Oral Ulcer
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complications
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diagnosis
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Syphilis
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complications
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diagnosis
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Tongue Diseases
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complications
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diagnosis
4.Melanoma: differences between Asian and Caucasian patients.
Haur Yueh LEE ; Wen Yee CHAY ; Mark By TANG ; Martin Tw CHIO ; Suat Hoon TAN
Annals of the Academy of Medicine, Singapore 2012;41(1):17-20
INTRODUCTIONCutaneous melanoma is rare in Asia and the clinical presentation and outcome of melanoma is not well described in Southeast Asia. In addition, it is unclear if ethnic variations exist between the various racial groups. The objective of our study is to present the clinical characteristics of melanoma in Singapore and to highlight ethnical differences between Asians and Caucasians living in Singapore.
MATERIALS AND METHODSData were retrospectively collected from 48 patients with histological confirmation of melanoma who were seen in both the National Skin Centre and National Cancer Centre of Singapore.
RESULTSAcral lentiginous melanoma (ALM) was the most common subtype of melanoma in Singapore (50%). A higher proportion of non-ALM subtypes of melanoma compared to ALM were diagnosed at stage 1 (48% vs. 25%). The delay in diagnosis of ALM was 27 months compared to 12 months in other subtypes. Compared to Caucasians, there was a trend towards Asian patients being older, having a higher proportion of ALM and a longer delay to diagnosis.
CONCLUSIONGeographical and ethnic variations in the clinical presentation of melanoma exist. Specially adapted programmes are necessary to increase awareness of the different clinical presentation of melanoma in Asia and to encourage examination of the palms and soles in order to reduce the delay in diagnosis.
Adult ; Aged ; Aged, 80 and over ; Asian Continental Ancestry Group ; European Continental Ancestry Group ; Female ; Humans ; Male ; Melanoma ; diagnosis ; epidemiology ; ethnology ; pathology ; Middle Aged ; Retrospective Studies ; Singapore ; epidemiology ; Skin Neoplasms ; diagnosis ; epidemiology ; ethnology ; pathology
5.Rising trends of STIs and HIV infection in Singapore-- a review of epidemiology over the last 10 years (1994 to 2003).
Priya SEN ; Martin Tw CHIO ; Hiok-Hee TAN ; Roy Kw CHAN
Annals of the Academy of Medicine, Singapore 2006;35(4):229-235
INTRODUCTIONThis is a review of the epidemiology and trends of sexually transmitted infections (STIs) in Singapore from 1994 to 2003.
MATERIALS AND METHODSData collated for both notifiable and non-notifiable STIs from 1994 to 2003 were analysed. This data consisted of STI notifications from medical practitioners in Singapore as well as from the Department of STI Control clinic itself.
RESULTSThere was a decline in the overall STI incidence in Singapore in the first half of the last decade from 215 cases per 100,000 population (7,200 cases) in 1994 to 162 cases per 100,000 population (6,318 cases) in 1999, followed by an increasing trend in the number of acute STIs (both bacterial and viral) over the past 5 years to 195 cases per 100,000 population (8,175 cases) in 2003 (P <0.001). The incidence of HIV has risen sharply over the last decade whilst that of other viral STIs has not decreased. Singaporeans are becoming sexually active at a younger age, with casual partners constituting the main primary contacts.
CONCLUSIONSAlthough there has been a significant decline in the overall incidence of STIs in Singapore over the last decade, a rise in acute STIs over the last 5 years has resulted in the need to identify the causal factors, and to intensify existing as well as develop new STI/HIV prevention programmes for the general population and certain core groups.
Adolescent ; Adult ; Child ; Female ; HIV Infections ; epidemiology ; Humans ; Incidence ; Male ; Middle Aged ; Prevalence ; Retrospective Studies ; Sexually Transmitted Diseases, Viral ; epidemiology ; Singapore ; epidemiology
6.Global monkeypox outbreak 2022: First case series in Singapore.
Xuan Qi KOH ; Martin Tze Wei CHIO ; Mingjuan TAN ; Yee Sin LEO ; Roy Kum Wah CHAN
Annals of the Academy of Medicine, Singapore 2022;51(8):462-472
Monkeypox is a global health emergency. Prior to 2022, there were few reports of monkeypox outside of endemic countries, which were mostly travel-related. Since May 2022, an exponential increase in monkeypox infections in previously non-endemic countries has been reported. Unlike previous outbreaks of monkeypox, which were zoonotically transmitted and presented with generalised vesicular eruptions after prodromal symptoms, cases of the current outbreak feature significant travel and sexual history, and atypical localised genital eruptions with unpredictable onset relative to viral prodrome-like symptoms. We summarise the 15 Singapore cases reported to date as of August 2022, and highlight salient clinical clues that may aid physicians in narrowing the broad differential diagnosis of an acute vesicular genital eruption. Although research into vaccination and antiviral strategies is ongoing, monkeypox is currently conservatively managed. Clinical vigilance and a high index of suspicion are required to facilitate early detection and isolation of cases to contain transmission in Singapore.
Disease Outbreaks
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Humans
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Monkeypox/epidemiology*
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Singapore/epidemiology*
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Travel-Related Illness
7.Challenges of respondent driven sampling to assess sexual behaviour and estimate the prevalence of human immunodeficiency virus (HIV) and syphilis in men who have sex with men (MSM) in Singapore.
Arlene C CHUA ; Mark Ic CHEN ; Philippe CAVAILLER ; Lili JIANG ; Mohammed Ridzwan ABDULLAH ; Oon Tek NG ; Martin CHIO ; Stuart KOE ; Joanne TAY ; Mee Lian WONG ; Roy CHAN
Annals of the Academy of Medicine, Singapore 2013;42(7):350-353
There is a lack of representative samples to provide reliable and accurate seroprevalence of sexually transmitted infections (STIs) and human immunodeficiency virus (HIV) as well as behavioural information among men who have sex with men (MSM) in Singapore. We used respondent driven sampling (RDS) to recruit MSM. Participants completed a survey used by Asian Internet MSM Sex Survey (AIMSS) and were tested for HIV and syphilis. We compared the characteristics of the RDS participants with STI diagnosis against those who did not have any STI diagnosis in the past 6 months. We compared RDS participants with AIMSS participants. Of 72 MSM recruited, 1 was positive for HIV (1.3%) and 4 (5.5%) tested positive for syphilis. Median age was 30 years and majority was Chinese (69.4%). RDS participants who had any STI diagnosis reported to have more use of recreational drugs (P = 0.006), and lower condom use (P = 0.054). Comparing RDS participants (n = 72) with the AIMSS participants (n = 2075), RDS respondents had ≥1 male partner in the past 6 months (P = 0.003), more casual sex partners (P = 0.012) and more STI symptoms (P = 0.019). There was no difference in terms of HIV testing and recreational drug use. The HIV and syphilis seroprevalence rates from our study are similar to previous reports conducted in high-risk MSM. In contrast to other settings, RDS did not work well among MSM in Singapore. The public health implications of our study highlight the challenges in obtaining data for HIV surveillance in assessing prevalence and risk behaviours among MSM.
Adult
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HIV Infections
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diagnosis
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epidemiology
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psychology
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Health Literacy
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methods
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Health Surveys
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Homosexuality, Male
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psychology
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statistics & numerical data
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Humans
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Male
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Middle Aged
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Prevalence
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Risk-Taking
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Seroepidemiologic Studies
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Sexual Behavior
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Sexual Partners
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psychology
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Singapore
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epidemiology
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Syphilis
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diagnosis
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epidemiology
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psychology