1.Single-stage adrenalectomy and hysterectomy for pheochromocytoma with giant uterine fibroid: A multidisciplinary perioperative challenge
Fei Bing Yong ; Sarojini Devi Simanchalam ; Hidayatil Alimi Keya Nordin ; Nithiya Devi Kandasami ; Sadhana Sadar Mahamad ; Suhaimi Jaafar ; Mohd Wajdi Zanuddin ; Poh Shean Wong ; Chin Voon Tong ; Noor Lita Adam ; Zanariah Hussein
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):20-
Introduction:
Pheochromocytoma is a catecholamine-secreting adrenal
tumor associated with major perioperative hemodynamic
instability. When concurrent major pelvic pathology
requires surgery, operative planning becomes particularly
challenging. We describe the successful single-stage
management of pheochromocytoma and a giant uterine
fibroid, highlighting the importance of multidisciplinary
coordination and perioperative optimization.
Case:
A 49-year-old female with symptomatic uterine fibroid
was found to have proliferative endometrium on a pipelle
biopsy. Computed tomography (CT) abdomen incidentally
detected a right adrenal mass alongside a large posterior
uterine fibroid (11.9 × 17.4 × 14.6 cm). CT adrenal protocol
demonstrated a heterogeneously enhancing right adrenal
mass (6.9 × 6.9 × 9.6 cm) with high unenhanced attenuation.
Biochemical evaluation revealed markedly elevated
24-hour urinary metanephrine (4.7× upper limit) and
normetanephrine (2.4× upper limit).
Following multidisciplinary discussions, a single-stage
surgical approach was planned after careful assessment of
feasibility and perioperative risk in view of the uncertain malignant potential of the pelvic mass and to minimize
repeated exposure to anesthesia. Preoperative optimization
included transitioning from terazosin to phenoxybenzamine, with subsequent addition of bisoprolol for
hemodynamic control. The operative strategy prioritized
pheochromocytoma resection first, given its potential
for significant hemodynamic instability. Progression to
hysterectomy was contingent upon achieving adequate
intraoperative hemodynamic stability following adrenalectomy, with continuous reassessment by the anesthetic
and surgical teams.
Right adrenalectomy was performed first, followed by
total abdominal hysterectomy with bilateral salpingooophorectomy. Significant hemodynamic lability occurred
during tumor manipulation, with hypertensive surges
managed using sodium nitroprusside and remifentanil
infusions. Following adrenal vein ligation and tumor
removal, hypotension was managed with noradrenaline
and additional adrenaline support as required. Total
operative time was approximately 6 hours. Postoperatively,
transient noradrenaline support was required but was
rapidly weaned as hemodynamic stability was achieved.
Conclusion
Single-stage adrenalectomy and major pelvic surgery
can be safely performed in selected patients with pheochromocytoma when guided by meticulous preoperative
optimization, clear intraoperative sequencing, and close
multidisciplinary coordination.
Pheochromocytoma
;
Adrenalectomy
;
Leiomyoma
;
Hysterectomy
2.Silent Adrenal Mass With Diagnostic Challenge: A Case of Huge Non-Functioning Adrenal Lesion Mimicking Malignancy
Sarojini Devi Simanchalam ; Hamizah Hamzah ; Lee Qin Zhi ; Poh Shean Wong ; Chin Voon Tong ; Tiang Koi Ng ; Nor Afidah Karim ; Noor Lita Adam
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):24-
Introduction:
Adrenal incidentalomas are increasingly detected with
the widespread use of imaging, whereby the large or
heterogeneous lesions often raise concern for adrenocortical carcinoma (ACC). However, certain rare benign and infectious conditions may closely mimic malignant
features, posing a diagnostic challenge.
Case:
A 64-year-old female with diabetes mellitus, hypertension,
and dyslipidemia was noted to have progressively rising
alkaline phosphatase during routine follow-up. She had
non-specific gastrointestinal symptoms. A computed
tomography abdomen pelvis showed a large, lobulated
mass at the left flank, likely of adrenal origin. An adrenal
protocol computed tomography revealed a large,
heterogeneously enhancing left suprarenal mass measuring
10.7 × 10.3 × 10.7 cm, with a plain-phase attenuation of +81
Hounsfield Unit and absolute (28%) and relative (18%)
washout. The right adrenal gland was normal, with no
evidence of distant metastasis.
Hormonal evaluation showed normal 24-hour urinary
metanephrines, excluding pheochromocytoma. The
overnight dexamethasone suppression test demonstrated
cortisol of 89 nmol/L, suggestive of mild autonomous
cortisol secretion, without clinical features of overt
hypercortisolism. DHEA was low (0.371 µmol/L), and
adrenocorticotropic hormone was suppressed (1.26 pg/mL).
Evaluation for primary aldosteronism was not done due
to the absence of resistant hypertension or hypokalemia.
The gonadotropin profile was consistent with postmenopausal status (follicle-stimulating hormone (89 IU/L)
and luteinizing hormone (28.9 IU/L) with low estradiol.
The patient underwent open left adrenalectomy. Histopathology revealed an adrenal cavernous hemangioma
with extensive hemorrhage and infarction, alongside
necrotizing granulomatous inflammation with numerous
intracellular fungal organisms and narrow-based budding
yeast forms, highly suggestive of histoplasmosis, with
no evidence of malignancy. She was subsequently comanaged with infectious disease team and commenced on
intravenous amphotericin B.
Conclusion
This is a rare coexistence of an adrenal hemangioma
and histoplasmosis, presenting as a large adrenal
mass mimicking ACC. The limitations of imaging in
differentiating benign from malignant adrenal lesions
are revealed and emphasize the role of histopathological
confirmation. Increased awareness of such entities can
support the diagnosis and management.
Neoplasms
3.Conundrum in the Management of a Rare Cause of Cushing Syndrome
Wee Mee Cheng ; Lit Sin Yong ; Poh Shean Wong ; Nor Afidah binti Karim ; Noor Lita Adam
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):32-
Introduction:
Primary bilateral macronodular adrenal hyperplasia
(PBMAH), characterized by bilateral adrenal macronodules
>1 cm, is a rare genetic disease contributing to <2% of
Cushing syndrome.
Case:
A 56-year-old male with underlying diabetes mellitus
and hypertension presented with worsening proximal
muscle weakness. Detailed neurological assessment was
unremarkable. Re-assessment revealed more apparent
cushingoid features, prompting referral to endocrinology.
Basal cortisol was markedly elevated at 957 nmol/L (145.4–
619.4 nmol/L). Unsuppressed cortisol after 1 mg overnight
dexamethasone and low-dose dexamethasone test confirmed
Cushing Syndrome. Suppressed adrenocorticotropic
hormone (ACTH <0.33 pmol/L) suggested autonomous
cortisol secretion from adrenal glands. Computed
tomography adrenal reported massively enlarged
hypodense multinodular adrenal glands of varying sizes.
Oral ketoconazole, an adrenal steroidogenesis inhibitor,
was initiated. Despite careful titration to keep serum
cortisol 400–500 nmol/L, he experienced glucocorticoid
withdrawal syndrome. Bilateral adrenalectomy was
planned but deferred as he continued to lose weight despite
persistent hypercortisolism. Extensive investigations
were conducted for possible opportunistic infections or
malignancy. His chest X-ray revealed a suspicious right
lung cavity. Positive serum galactomannan and bronchial
alveolar lavage galactomannan suggested pulmonary
aspergillosis. Voriconazole was introduced, with drug-drug
interaction judiciously addressed. He underwent bilateral
adrenalectomy and required lifelong glucocorticoid and
mineralocorticoid replacement. Histopathological report confirms bilateral macronodular adrenocortical disease. A
referral to a genetic clinic was made to explore the potential
hereditary basis.
Conclusion
PBMAH is a highly heterogeneous disease with variable
presentation and a wide spectrum of hypercortisolism.
Definitive management remained controversial and
individualized. Multidisciplinary discussion is crucial,
and genetic study is highly recommended for long-term
prognostication and familial screening.
4.Understanding Diabetes Literacy in Seremban: Predictive Factors and Clinical Implications
Wee Mee Cheng ; Nadiah Aminah Azizan ; Wan Farahiyah Wan Muhmad ; Aun Aun Chua ; Poh Shean Wong ; Lit Sin Yong ; Nor Afidah Karim ; Noor Lita Adam
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):35-
Introduction:
Diabetes literacy represents personal knowledge and
competencies related to diabetes mellitus (DM) among
people living with DM (PLWD). It is a crucial component
for optimizing care and empowering effective selfmanagement.
Methodology:
A cross-sectional study was conducted at Hospital Tuanku
Ja’afar Seremban (HTJS) and Klinik Kesihatan Seremban
(KKS) using a validated simplified Diabetes Knowledge
Test (DKT). DKT assessed understanding in six domains,
namely, awareness, lifestyle modification, diet and monitoring, general knowledge, preventive screening, and
insulin. A score of >75% was classified as adequate diabetes
literacy. Significant predictive factors identified from univariate Pearson Chi Square were further analyzed using
multivariate logistic regression.
Results:
A total of 250 PLWDs, with equal contribution from each
centre, were recruited with a mean (SD) age of 50.3 (13.6)
years, 58.4% female, and 43.2% Malays. A total of 21.2%
demonstrated adequate diabetes literacy. The results
demonstrated the highest proficiency in the preventive
screening domain (92.6%) and the lowest in the awareness
domain (50.2%). Unemployed PLWDs had significantly
lower odds of adequate diabetes literacy (odds ratio [OR]
= 0.20, p = 0.010). Similarly, PLWDs with hemoglobin A1c
levels >10% exhibited approximately 2.6-fold lower odds
of adequate diabetes literacy. In contrast, PLWDs who
reported healthcare personnel as their primary source of
diabetes-related information had significantly higher odds
of adequate literacy (OR = 1.59, p = 0.017). No significant
association was demonstrated between diabetes literacy
and frequency of hospital admissions, medication
adherence, and diabetes-related target organ damage
Conclusion
Diabetes literacy among PLWD in HTJS and KKS is
suboptimal, with notable gaps in awareness of the disease.
Targeted, culturally tailored education strategies are
essential to address these disparities and to empower them
for effective diabetes self-management.
Literacy
;
Diabetes Mellitus
5.Risk Assessment for Ramadan Fasting in People With Diabetes in Hospital-Based Diabetes Clinics Using the Updated 2026 IDF-DAR Risk Calculator
Raja Nurazni Raja Azwan ; Chin Voon Tong ; Lisa Mohamed Nor ; Marisa Khatijah Borhan ; Syarifah Syahirah Syed Abas ; Poh Shean Wong ; Ying Jie Tan ; Shartiyah Ismail ; Eunice Yi Chwen Lau ; Yueh Chien Kuan ; Noor Hafis Md Tob ; Shu Teng Chai ; Pei Lin Chan ; Xe Hui Lee ; Wei Wei Ng ; Jin Hui Ho ; Miza Hiryanti Zakaria ; Rabeah Md Zuki ; Wan Mohd Hafez Wan Hamzah ; Melissa Vergis ; Choon Peng Sun ; Vanusha Devaraja Pillai ; Chee Koon Low ; Shazatul Reza Mohd Redzuan ; Xin-Yi Ooi ; Siti Sanaa Wan Azman ; Deviga Lachumanan ; Saiful Shahrizal Shudim ; Zanariah Hussein
Journal of the ASEAN Federation of Endocrine Societies 2026;41(S1):42-43
Introduction:
The 2021 IDF-DAR risk calculator had been previously
evaluated in multiple studies and subsequently widely
accepted and applied in clinical practice as a practical
standardized tool for patient risk stratification. Recently
updated, the 2026 IDF-DAR Risk calculator enables a more individualized, evidence-related evaluation of patientrelated and disease-related risk factors, incorporating
modern diabetes technologies, including continuous
glucose monitoring (CGM), automated insulin delivery
(AID) systems, and advanced insulin formulations to
enhance risk stratification. This tool allows medical
professionals to tailor Ramadan practices based on overall
factors toward promoting safe fasting.
Methodology:
This prospective multicentre observational study recruited
adults with Type 1 and Type 2 diabetes attending public
hospitals nationwide. People with diabetes (PwD) intending
to perform Ramadan fasting were invited to participate
and assessed using the 2026 IDF-DAR Risk Calculator in
the 6-week pre-Ramadan period between 30th January and
19th March 2026.
Results:
A total of 458 PwD were evaluated and stratified into low
(15.7%), moderate (41%), and high risk (43.3%) categories.
Most participants had Type 2 diabetes (83.6%), with 60.3%
having a disease duration exceeding 10 years and 43%
exhibiting poor glycemic control (hemoglobin A1c >9%).
Insulin therapy was used by 76.4% of participants, including
two individuals with Type 1 diabetes using AID systems.
Most participants reported no recent hypoglycemia (76.4%),
81.0% performed glucose monitoring, and 3.3% used CGM.
Severe comorbidities were uncommon, with 1.1% having
unstable macrovascular disease and 4.4% advanced chronic
kidney disease (estimated glomerular filtration rate <30).
Notably, 72.2% received structured Ramadan education.
Conclusion
Majority of PwD attending tertiary diabetes clinics were
in the moderate- to high-risk category and intended to
fast despite medical advice against fasting in some cases.
Although most participants were on insulin therapy,
hypoglycemia was low in the pre-Ramadan period.
Integration of modern technologies, advanced insulin
therapies, and structured education may support safer
fasting practices.
Risk Assessment
;
Diabetes Mellitus
;
Hospitals
;
Fasting
6.Use of combination of Oral Levothyroxine and Liothyronine in severe Hypothyroidism with Massive Pericardial Effusion
Poh Shean Wong ; Sue Wen Lim ; Chin Voon Tong ; Masni Mohamad ; Zanariah Hussein
Journal of the ASEAN Federation of Endocrine Societies 2022;37(2):106-112
Thyroid hormone plays an important role in cardiovascular function. Pericardial effusions are commonly seen in cases of severe hypothyroidism. However, large to massive pericardial effusions with cardiac tamponade are exceptionally rare. Herein, we present two cases of severe hypothyroidism with massive pericardial effusion. Our first case demonstrates that a patient with large pericardial effusion can be managed conservatively with aggressive thyroid hormone replacement therapy. In our second case, pericardiocentesis was performed in addition to thyroid hormone replacement therapy as the underlying aetiology of effusion could not be reasonably limited to hypothyroidism. These two cases served to highlight and demonstrate rapid normalisation of thyroid function test by using aggressive oral thyroid hormone replacement therapy using liothyronine, in combination with levothyroxine, which led to resolution of pericardial effusion and prevent its re-accumulation.
Pericardial Effusion
;
Thyroxine
;
Triiodothyronine
7.Rare presentation of right Adrenal Mass: Extramedullary haematopoiesis in a patient with Thalassaemia Intermedia
Poh Shean Wong ; Lit Sin Yong ; Nor Afidah Binti Karim ; Ee Leng Gan ; See Guan Toh ; Noor Lita Binti Adam
Journal of the ASEAN Federation of Endocrine Societies 2021;36(1):80-84
Extramedullary hematopoiesis (EMH) is a rare cause of adrenal mass. We present a 44-year-old woman who has thalassaemia intermedia, referred to Endocrinology clinic for huge adrenal mass. Along with a paraspinal lesion discovered in this patient, the leading diagnosis was EMH. The patient was treated with hypertransfusion and hydroxyurea, which led to a reduction in the size of the right adrenal mass and paraspinal mass. This case highlights the challenges in managing this rare condition. Although EMH is a rare cause of adrenal mass, the diagnosis must be considered in any patient with a history of a congenital hemolytic disorder, to avoid unnecessary surgical procedures.
Hematopoiesis, Extramedullary


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