1.Suprasellar Mogad: Rare endocrine manifestations of hypopituitarism and diabetes insipidus
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):16-
Introduction:
Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) is an uncommon inflammatory demyelinating
disorder of the central nervous system, with a reported prevalence of 1.3–2.5 per 100,000. Hypothalamic–pituitary
involvement is rare and can mimic structural lesions, presenting with varying degrees of hypopituitarism and central
diabetes insipidus.
Case:
A 30-year-old male presented with a 2-year history of poor concentration, blurring of vision and lethargy. Initial investigations revealed severe hypernatremia (serum sodium 165 mmol/L) and a 1.4 × 2.1 × 1.3 cm suprasellar cistern mass on
CT scan, with differential diagnoses including meningioma and germinoma. Brain magnetic resonance imaging showed
abnormal signals in the optic pathways and hypothalamus, raising suspicion of a demyelinating process.
Endocrine evaluation confirmed panhypopituitarism: elevated prolactin (1125.2 mIU/L), hypogonadotropic hypogonadism
(follicle-stimulating hormone 0.7 IU/L, LH 0.3 IU/L, testosterone <0.35 nmol/L), central hypothyroidism (TSH 3.8 mIU/L,
free T4 5.88 pmol/L) and low cortisol (33.1 nmol/L). Persistent hypernatremia (up to 171 mmol/L) with high serum osmolality
(370 mOsm/kg) and low urine osmolality (237 mOsm/kg) confirmed central diabetes insipidus, as urine osmolality rose
to 755 mOsm/kg following intravenous desmopressin.
He was commenced on sublingual desmopressin 60 micrograms twice daily, hydrocortisone (10 mg morning, 5 mg
afternoon), levothyroxine 75 micrograms daily and monthly intramuscular testosterone 150 mg. Subsequent readmissions
for generalized weakness and fever led to cerebrospinal fluid analysis and serum testing, which were positive for MOG
antibodies and negative for aquaporin-4 antibodies, confirmed MOGAD.
During a third admission with recurrent generalized weakness, he responded favorably to intravenous methylprednisolone
(1 g daily for 5 days), followed by a tapering oral prednisolone regimen.
Conclusion
MOGAD can involve the hypothalamic–pituitary axis and mimic a suprasellar mass. In patients with panhypopituitarism,
central diabetes insipidus and compatible imaging, inflammatory demyelination should be suspected. MOG antibody
positivity and response to corticosteroids support diagnosis and guide management.
Diabetes Insipidus
;
Hypopituitarism
2.Hidden Burden of Diabetes Risk Among Healthcare Workers in a Tertiary Hospital
Hui Soon Lim ; Ee Wen Loh ; Sing Yee Sim ; Pei Lin Chan ; Florence Hui Sieng Tan
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):40-
Introduction:
The increasing prevalence of diabetes represents a
significant global health challenge. Modifiable risk factors,
including physical inactivity, unhealthy dietary habits, and obesity contribute substantially to this rising burden.
In conjunction with the 2025 World Diabetes Day (WDD)
campaign focusing on “diabetes and the workplace,” we
assessed diabetes risk among healthcare workers in our
hospital using the Modified Asian Finnish Diabetes Risk
Score (ModAsian FINDRISC).
Methodology:
Healthcare workers from various departments were invited
to participate in the hospital WDD celebration. A total of
286 attendees underwent anthropometric measurements
and completed the ModAsian FINDSRIC questionnaire.
Descriptive statistics were used to summarize the
prevalence of risk factors and overall diabetes risk.
Results:
The participants included doctors, nurses, allied healthcare
professionals, as well as hospital support and administrative
staff. The majority of participants (74.8%) were aged below
45 years. 39.2% were overweight while 30.8% were obese.
One-third (37.4%) had increased waist circumference
(WC) (≥90 cm for men, ≥80 cm for women). Additionally,
20% of respondents reported being on antihypertensive
medication, and 23.8% had previously recorded high blood
glucose. A family history of diabetes mellitus (DM) was
reported by 62.6% of respondents. Additionally, about onethird were sedentary with less than 30 minutes of daily
exercise or physical activity, another one-third did not
consume fruits or vegetables on a daily basis. The median
ModAsian FINDRISC score was 8, with approximately
30% of them classified as having moderate to very high
risk of developing DM (moderate: 17.5%; high: 10.8%; very
high: 2.8%).
Conclusion
These results revealed high metabolic risk in healthcare
workers and highlight the need for targeted workplace
health promotion strategies to reduce the risk of developing
diabetes.
Tertiary Care Centers
;
Health Personnel
;
Diabetes Mellitus
3.Clinical Use of Denosumab for Refractory Hypercalcemia: A Retrospective Case Series
Mohammad Amirul Shahril ; Florence Hui Sieng Tan ; Ee Wen Loh ; Pei Lin Chan ; Sing Yee Sim
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):71-
Introduction:
Severe hypercalcemia is most commonly caused by primary
hyperparathyroidism (PHPT) and malignancy. While
standard therapies are effective in most cases, a subset of
patients have persistent or refractory hypercalcemia. We
present a retrospective case series detailing the clinical
characteristics, biochemistry, and outcomes of patients
treated with denosumab for hypercalcemia.
Cases:
Seven patients with severe hypercalcemia were identified,
comprising five with PHPT and two with malignancyassociated hypercalcemia. The mean age was 70.4 years
(range 55–86), with 71% female (n = 5) and 29% male (n
= 2). Baseline corrected calcium ranged from 2.92 to 4.59
mmol/L, with a mean of 3.26 mmol/L. In the PHPT cohort,
parathyroid hormone (PTH) levels were significantly
elevated (16.7–168 pmol/L), while malignancy patients had
suppressed PTH (0.6 and 0.9 pmol/L).
Prior to denosumab, 4/7 patients (57%) received bisphosphonates, 3/7 (43%) received calcitonin, and 1/7 (14%) was
treated with cinacalcet. Denosumab resulted in a mean
reduction in corrected calcium of 0.22 mmol/L from 3.26
to 3.03 mmol/L.
Biochemical response was observed in 5/7 patients (71%).
Of these, 3 patients (43%) achieved normocalcemia,
while 2 patients (29%) demonstrated a partial response.
The remaining 2/7 patients (29%) showed no significant
improvement in calcium levels. Among responders, the
mean time to calcium reduction to <3.0 mmol/L was 27 days
(range 7–47). Repeat dosing was required in the majority
of patients, with a mean of 1.7 doses per patient (range
1–4), indicating variability in both onset and durability
of response. Among patients with PHPT, four underwent
parathyroidectomy, and one declined surgery. Both patients
with malignancy were managed nonsurgically.
Conclusion
Denosumab achieved normocalcemia in 43% of patients,
with additional partial responses. Its effects were variable,
with delayed response and frequent need for repeat dosing,
supporting its role as an adjunctive or bridging therapy
rather than as a definitive treatment.
Denosumab
;
Hypercalcemia
;
Retrospective Studies
4.A Diagnostic Dilemma in Ectopic ACTH Syndrome: When Biochemistry and Imaging Conflict
Ioanna Ting Yung Sim ; Florence Hui Sieng Tan ; Sing Yee Sim ; Pei Lin Chan ; Ee Wen Loh
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):83-84
Introduction:
Ectopic ACTH secretion (EAS) is a rare cause of Cushing’s
syndrome, accounting for 5–15% of cases. Pulmonary
neuroendocrine tumors are the most frequent cause.
However, primary tumor localization remains a significant
diagnostic challenge, delaying effective treatment.
Case:
A 59-year-old female with diabetes mellitus presented
with refractory hypertension and hypokalemia. Initial
laboratory findings revealed a baseline cortisol of 1,164
nmol/L and morning adrenocorticotropic hormone
(ACTH) of 19.5 pmol/L (normal <10.2 pmol/L), with an
overnight dexamethasone suppression test cortisol of
624 nmol/L. Pituitary magnetic resonance imaging (MRI)
and computed tomography (CT) scans of the thorax,
abdomen, and pelvis were initially unremarkable. A PET
scan identified mild hypermetabolism in the left adrenal
gland and gastrointestinal tract, though colonoscopy
revealed only chronic colitis. An intravenous desmopressin
stimulation test demonstrated a 181% rise in ACTH and a
35% rise in cortisol, pointing toward pituitary Cushing’s.
However, repeat pituitary MRI remained normal.
A high-dose dexamethasone suppression test showed
approximately 34% cortisol suppression (cortisol 1,128
nmol/L to 745 nmol/L), suggesting ectopic Cushing’s
syndrome. Bilateral inferior petrosal sinus sampling
demonstrated a peak central-to-peripheral ACTH ratio of
1.8 on the right and 1.6 on the left, pointing toward ectopic
Cushing’s.
Localization with DOTATATE PET-CT identified a 7 × 9 ×
8 mm nodule in the right middle lobe. A wedge resection
was performed. Histopathology confirmed a typical
carcinoid tumor with clear resection margins. Immunohistochemistry revealed tumor cells positive for CK AE1/ AE3, synaptophysin, chromogranin, and INSM-1, with
weak positivity for ACTH. The latest 8 am cortisol was 117
nmol/L and ACTH 1.74 pmol/L, confirming biochemical
cure. Hypokalemia resolved, with improvement in her
metabolic profile.
Conclusion
This case highlights the diagnostic complexities of EAS,
particularly when initial imaging is inconclusive and
biochemical tests yield conflicting results. Timely, precise
localization of the causative tumor is crucial for successful
surgical intervention and to prevent severe complications
of hypercortisolism, thereby improving patient outcomes.
ACTH Syndrome, Ectopic
5.Students Views and Perceptions on Outdoor Air Pollution in Iskandar Puteri, Malaysia
Michaela Louise Goodson ; Dominic Kay Shuen Wei ; Yee Chu Kwa ; Cindy Lee Ik Sing ; Norlilawati Suboh ; Claire Walsh
International Journal of Public Health Research 2024;14(no.1):1888-1899
Introduction:
Air pollution and air quality are growing concerns among urban citizens of Southeast Asia, especially the University students who devote most of their days to the vicinity of campus. However, there is limited data available on the extent of the problem, as well as an understanding of the knowledge of and perceptions of people who may be exposed to poor air quality.
Methods:
This focused study evaluated University students’ opinions, perceptions, and behavioral responses to local air quality in the Iskandar Puteri, Johor region of Malaysia using an online questionnaire, and measurements of NO2, SO2, formaldehyde, and particulate matter levels in the area using diffusion tubes. All air quality parameters were within the standards recommended by the local environmental authority, however, NO2 levels exceeded the recommended World Health Organization (WHO) standards at all sites.
Results:
Questionnaire findings indicate that students most commonly suffered from respiratory diseases, and were very concerned about air pollution and its impacts. Respondents perceived the situation to be worse in the afternoons and weekends, corroborated by the PM2.5 readings in the area. Preferred preventive measures included wearing masks and limiting active time outdoors.
Conclusions
The evidence from this study highlighted the need to improve air quality in Iskandar Puteri as the NO2 level exceeded international standards for human health at all study sites. This could be supported by educational programs for industry, limitations on traffic emissions, and general awareness of air quality issues present locally.
6.Hip fracture is associated with a reduced risk of type 2 diabetes: A retrospective cohort study
Suhas KRISHNAMOORTHY ; Casey Tze-Lam TANG ; Warrington Wen-Qiang HSU ; Gloria Hoi-Yee LI ; Chor-Wing SING ; Xiaowen ZHANG ; Kathryn Choon-Beng TAN ; Bernard Man-Yung CHEUNG ; Ian Chi-Kei WONG ; Annie Wai-Chee KUNG ; Ching-Lung CHEUNG
Osteoporosis and Sarcopenia 2024;10(2):60-65
Objectives:
Type 2 diabetes mellitus (T2DM) shares a complex relationship with bone metabolism and few studies investigated the effect of impaired bone health on the risk of T2DM. This study was conducted to investigate the association between hip fractures and the risk of incident T2DM.
Methods:
This is a retrospective cohort study using data from the real-world hip fracture cohort. Hong Kong Chinese patients aged ≥ 65 years without T2DM who were admitted to public hospitals due to a fall between 2008 and 2015 were included in the study. Patients who sustained falls with and without hip fractures were matched by propensity score (PS) at a 1:1 ratio. Competing risk regression was used to evaluate the association between hip fracture and incident T2DM, with death being the competing event.
Results:
A total of 23,314 hip fracture cases were matched to 23,314 controls. The median follow-up time was 5.09 years. The incidence rate of T2DM was 11.947 and 14.505 per 1000 person-years for the hip fracture and control group respectively. After accounting for the competing risk of death, the hip fracture group had a significantly lower risk of developing T2DM (HR: 0.771, 95% CI: 0.719–0.827). Similar results were observed in all subgroups after stratification by age and sex.
Conclusions
Hip fracture was found to be associated with a reduced risk of T2DM. These findings provide insight into the topic of bone and glucose metabolism and prompt further research in evaluating the role of bone health in the management of T2DM.
7.Concordance of self-reporting of diabetes compared with medical records: A comparative study using polyclinic data in Singapore.
Khai Wei TAN ; Jeremy Kaiwei LEW ; Poay Sian Sabrina LEE ; Sin Kee ONG ; Hui Li KOH ; Doris Yee Ling YOUNG ; Eng Sing LEE
Annals of the Academy of Medicine, Singapore 2023;52(2):62-70
INTRODUCTION:
Studies of concordance between patients' self-report of diseases and a criterion standard (e.g. chart review) are usually conducted in epidemiological studies to evaluate the agreement of self-reported data for use in public health research. To our knowledge, there are no published studies on concordance for highly prevalent chronic diseases such as diabetes and pre-diabetes. The aims of this study were to evaluate the concordance between patients' self-report and their medical records of diabetes and pre-diabetes diagnoses, and to identify factors associated with diabetes concordance.
METHOD:
A cross-sectional, interviewer-administered survey was conducted on patients with chronic diseases after obtaining written consent to assess their medical notes. Interviewers were blinded to the participants' profiles. Concordance was evaluated using Cohen's kappa (κ). A multivariable logistic regression model was used to identify factors associated with diabetes concordance.
RESULTS:
There was substantial agreement between self-reported and medical records of diabetes diagnoses (κ=0.76) and fair agreement for pre-diabetes diagnoses (κ=0.36). The logistic regression model suggested that non-Chinese patients had higher odds of diabetes concordance than Chinese patients (odds ratio [OR]=4.10, 95% confidence interval [CI] 1.19-14.13, P=0.03). Patients with 3 or more chronic diseases (i.e. multimorbidity) had lower odds of diabetes concordance than patients without multimorbidity (OR=0.21, 95% CI 0.09-0.48, P<0.001).
CONCLUSION
Diabetes concordance was substantial, supporting the use of self-report of diabetes by patients with chronic diseases in the primary care setting for future research. Pre-diabetes concordance was fair and may have important clinical implications. Further studies to explore and improve health literacy and patient-physician communication are needed.
Humans
;
Prediabetic State
;
Singapore/epidemiology*
;
Cross-Sectional Studies
;
Diabetes Mellitus/epidemiology*
;
Medical Records
;
Self Report
8.Incidence of angiotensin-converting enzyme inhibitor-induced cough in a Malaysian public primary care clinic: A retrospective cohort study
Hou Chan Loo ; Fairuz Osman ; Siew Lee Ho ; Sing Yee An ; Yim Mei Au Yong ; Ee Ming Khoo
Malaysian Family Physician 2022;17(1):66-70
Introduction:
The incidence of angiotensin-converting enzyme inhibitors (ACEi)-induced cough has been reported between 5% and 30% but is unknown in Malaysia. This study aimed to determine the incidence of ACEi-induced cough and its associated factors in a public primary care clinic in Malaysia.
Methods:
A retrospective review of electronic medical records of patients who were initiated ACEi between January 1, 2015, and December 31, 2015, and reviewed until July 31, 2016. A total of 1,091 patients were newly prescribed ACEi, and 394 patients were eligible for this study. We excluded patients who defaulted follow-ups with no further clinic visits before July 31, 2016, were transferred to the clinic without the recorded date of ACEi initiation, were transferred to other clinics during the study period, were followed up at other clinics and attended the study clinic for a short period, or were given only a stat dose of ACEi.
Results:
Among the 394 patients initiated on ACEi, 225 (57.1%) were male, 369 (93.7%) were Malay, 376 (95.4%) had hypertension, and 192 (48.7%) had diabetes. The incidence of ACEi-induced cough was 24.1%, and 42 (10.7%) patients developed cough on the day of therapy initiation. There was no association between age, gender, ethnicity, type of ACEi, and cough.
Conclusion
Approximately one quarter of patients developed cough after ACEi initiation, and approximately half of them developed cough within 1 week of ACEi initiation. Doctors should consider early follow-up for patients initiated on ACEi therapy to ensure adherence, quality of life, and minimise unnecessary treatment.
Angiotensin-Converting Enzyme Inhibitors
;
Cough
;
Incidence
9.Case scenario: Management of major depressive disorder in primary care based on the updated Malaysian clinical practice guidelines
Mohd Aminuddin Mohd Yusof ; Uma Visvalingam ; Umi Adzlin Silim ; Muhammad Muhsin Ahmad Zahari ; Firdaus Abdul Gan ; Noormazita Mislan ; Noor Izuana Redzuan ; Peter Kuan Hoe Low ; Sing Yee Tan ; Masseni Abd Aziz ; Aida Syarinaz Ahmad Adlan ; Suzaily Wahab
Malaysian Family Physician 2022;17(1):71-77
Major depressive disorder (MDD) is a common but complex illness that is frequently presented in the primary care setting. Managing this disorder in primary care can be difficult, and many patients are underdiagnosed and/or undertreated. The Malaysian Clinical Practice Guidelines (CPG) on the Management of Major Depressive Disorder (MDD) (2nd ed.), published in 2019, covers screening, diagnosis, treatment and referral (which frequently pose a challenge in the primary care setting) while minimising variation in clinical practice.
Depression
;
Depressive Disorder, Major
;
Primary Health Care
;
Therapeutics
10.Demographics and outcome of patients with congenital haemophilia in Sarawak, Malaysia
Andy Tang Sing Ong ; Wong Qi Ying ; Tan Yee Yen ; Chieng Chae Hee ; Ko Ching Tiong ; Ong Gek Bee ; Chew Lee Ping
The Medical Journal of Malaysia 2021;76(1):51-55
Introduction: Sarawak has a population that is
geographically and characteristically widely varied. This
study aimed to determine the demographic profile of
patients in Sarawak, Malaysia.
Materials and Methods – A cross-sectional study was
conducted in 2019 at four major haemophilia treatment
centres in Kuching, Sibu, Bintulu and Miri Hospitals,
Sarawak. Demographic and clinical data were collected with
consents from patients.
Results and Discussion: Ninety-six haemophilia patients
were identified - 79(82.3%) haemophilia A(HA) and 17(17.7%)
haemophilia B(HB). Severe haemophilia patients were noted
in 45.6% (36/79) of HA and 64.7% (11/17) of HB. In all 44.3%
of the HA and 52.9% of the HB population had no identifiable
family history of haemophilia. Two-thirds of the patients with
severe HA were on prophylaxis [24/36 (66.7%)] and only onethird [4/11 (36.4%)] in severe HB. Inhibitors developed in 9/79
(11.4%) of the HA population [3/79 (3.8%) high responders].
The median inhibitor titre was not significantly different
between the different treatment groups – on demand versus
prophylaxis (1.0BU versus 2.0BU; z statistic -1.043, p-value
0.297, Mann-Whitney test). None of the patients developed
inhibitory alloantibodies to factor IX. Four HA patients (5.1%)
underwent immune tolerance induction where one case had
a successful outcome. Three severe HA patients received
emicizumab prophylaxis and showed remarkable reduction
in bleeding events with no thromboembolic events being
reported. One female moderate HA patient received
PEGylated recombinant anti-haemophilic factor. Eleven
patients underwent radiosynovectomy. One mild HB patient
succumbed to traumatic intracranial bleeding. Our data
reported a prevalence (per 100,000 males) of 5.40 cases for
all severities of HA, 2.46 cases for severe HA; 1.16 cases for
all severities of HB, and 0.75 cases for severe HB. The
overall incidence of HA and HB was 1 in 11,500 and 1 in
46,000, respectively.
Conclusion: This study outlines the Sarawakian haemophilia
landscape and offers objective standards for forward
planning. Shared responsibilities among all parties are of
utmost importance to improve the care of our haemophilia
population.


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