1.Distal Radius Morphometry in the Malaysian Population
Chan CYW ; Vivek AS ; Leong WH ; Rukmanikanthan S
Malaysian Orthopaedic Journal 2008;2(2):27-30
The goal of treatment in distal radius fracture is to restore the anatomy of the distal radius, however the criteria currently used to evaluate the quality of reduction are based on Western based published figures. This goal of this study was to investigate whether there are variations in the morphology
of the distal radius among the multiracial population of
Malaysia. Consecutive normal wrist radiographs of patients
who presented to the accident and emergency unit in three
major hospitals in Malaysia were measured. . The palmar tilt of the distal radius averaged 12.6o ± 3.55o, and the radial inclination averaged 25.1o ± 3.42o. The ulnar variance averaged – 0.1 ± 1.31mm, 38.4% of the patients had neutral ulnar variance, 28.8% have negative ulnar variance and 32.9% have positive ulnar variance. Our results indicate that distal radius morphometric parameters in the Malaysian population are comparable to Western figures.
2.Trisomy X and Myelodysplastic Syndrome (MDS) with Eosinophilia
RMT Eusni ; CF Leong ; S Salwati
Malaysian Journal of Medicine and Health Sciences 2012;8(2):65-67
We reported a young patient with myelodysplastic syndrome (MDS) with eosinophilia, in which her
chromosomal analysis revealed the presence of trisomy X and a marker chromosome at chromosome
11. The technique used to detect the chromosomal abnormalities is a multicoloured –fluorescent in
situ hybridization technique (M-FISH). Our observation suggested that these underlying chromosomal
abnormalities were probably responsible for her development of MDS with eosinophilia.
Myelodysplastic syndrome (MDS) is a condition whereby there is ineffective production of
haematopoietic stem cells and poor quality of cells produced. The cause can either be a primary bone
marrow problem, de novo or therapy related. Most MDS cases are secondary rather than primary. Many
chromosomal abnormalities have been found in cases of myelodysplastic syndrome. We described a
case of MDS with eosinophilia in association with presence of trisomy X and a marker chromosome in
chromosome 11.
3.Cavernous Lymphangioma of the Digits: A Rare Cause of Macrodactyly
LEONG JF ; LEVIN KB ; RAJKUMAR V ; ABDULLAH S ; JAMARI S
Medicine and Health 2019;14(2):261-265
Cavernous lymphangioma is a congenital malformation of lymphatic system causing dilated lymphatic sinuses that involve the skin and subcutaneous tissues. This was an interesting case of dystrophic macrodactyly of the left ring and little finger in a 18-month-old girl who presented with swollen and sausage like fingers deformity which turned out to be an isolated cavernous lymphangioma. This tumor, although rare to occur in the extremeties, must be differentiated from other congenital vascular lesions of the hand that include arteriovenous malformations and hemangiomas. Diagnosis should be solely based on histopathological analysis of the excised tissue mass. Surgical excision is usually necessary for satisfactory functional and cosmetic outcome.
4.Non-myeloablative conditioning for hemopoietic stem cell transplantation--does it work?
S-K Cheong ; G-I Eow ; C-F Leong
The Malaysian journal of pathology 2002;24(1):1-8
Allogeneic bone marrow or peripheral blood stem cell transplantation traditionally uses myeloablative regimen for conditioning to enable grafting of donor's stem cells. Animal experiments have shown that a milder non-myeloablative conditioning regimen does allow engraftment to occur. Nonmyeloablative conditioning regimens are low-intensity immunosuppressive treatment given to the recipient before infusion of donor's stem cells. It was reported to have decreased immediate procedural mortality, in particular those secondary to acute graft versus host reaction. However, it did give rise to higher risks of graft rejection, tumour tolerance and disease progression. Fortunately, appropriately administered donor lymphocyte infusion has been shown to establish full donor chimerism (complete donor stem cell grafting in the recipient's bone marrow) and potentiate antitumour effect (graft versus tumour reaction). The reduction of immediate transplant mortality allows the procedure to be carried out in older age groups, patients with concomitant diseases that otherwise would have made the patients unfit for the procedure, patients with non-malignant disorders such as congenital immune deficiencies, autoimmune disorders or thalassaemia majors. The regimen also allows transplantation of genetically manipulated haemopoietic stem cells (gene thrapy) to be carried out more readily in the immediate future. Lastly, the regimen may serve as a platform for immunotherapy using specific T cell clones for anti-tumour therapy with or without the knowledge of known tumour antigen.
seconds
;
regimen
;
Conditioning (Psychology)
;
Stem Cells
;
Exertional dyspnea
5.Management of concurrent thoracic and abdominal aortic aneurysms
Saw Siong Teng ; Feona S. Jospeh ; Benjamin Leong Dak Keung
The Medical Journal of Malaysia 2017;72(5):321-323
Concurrent thoracic and abdominal aortic aneurysm is
uncommon. It remains a formidable surgical challenge to
vascular surgeons, as decision to treat in staged or
simultaneous setting still debatable. We present, here, a
case of a 62-year-old-man with asymptomatic concurrent
thoracic and abdominal aortic aneurysms, which was
successfully treated with two-stage hybrid endovascular
repair. The aim of this case report is to discuss the
treatment options available, possible associated
complications and measures to prevent them.
Aortic Aneurysm, Abdominal
;
Aortic Aneurysm, Thoracic
6.Aggressive Variant Large Granular Lymphocytic Leukaemia: A Case Report
MN Sabariah ; S Zainina ; I Faridah ; CF Leong
Malaysian Journal of Medicine and Health Sciences 2011;7(1):57-60
Clonal disorders of LGL may either be CD3+ CD56- or CD3- CD56+ phenotype and these have
been designated as T-cell leukaemia (T-LGL) or natural killer cell (NK)-LGL leukaemia respectively.
Clonality is usually demonstrated by clonal rearrangement of T-cell receptor gene rearrangement or
identified by flowcytometry analysis. Most patients with T-LGL will have an indolent course. In this
report we described an aggressiveness of disease in a patient with clonal CD3+ LGL leukaemia whose
cells also co-expressed CD56 diagnosed by flowcytometry. The patient responded well to interrupt ALL
standard risk protocol however succumbed to her disease while waiting for upfront stem cell transplant.
This case highlights on both the classical laboratory findings of rare entity of disease as well as a review
of the literature pertaining particularly on its management.
8.Kaposi’s Sarcoma in a 35-year-old homosexual
Tan WC ; Lo Kang SC ; Ong CK ; Leong KN ; Subathra S
Malaysian Journal of Dermatology 2007;19(-):117-118
Kaposi’s sarcoma (KS) is strongly associated with Human
Herpes Virus 8 (HHV8) and Human Immunodeficiency
Virus infection (HIV). It was the first malignancy to be
linked with Acquired Immunodeficiency Syndrome
(AIDS) and it is still the most commonly encountered
malignancy associated with HIV. We report a case of
Kaposi’s sarcoma in a homosexual man.
9.Extensive myelofibrosis responsive to treatment for acute erythroblastic leukaemia.
S-Abdul-Wahid Fadilah ; Raja-Sabudin Raja-Zahratul-Azma ; Chooi-Fun Leong
The Malaysian journal of pathology 2006;28(1):55-8
Intense myelofibrosis is rarely associated with de novo acute myeloid leukaemia (AML) except in acute megakaryoblastic leukaemia (AML-M7) where there is diffuse marrow fibrosis as a consequence of proliferation of neoplastic myeloid cells. AML associated with significant myelofibrosis developing both de novo or secondary to primary (idiopathic) myelofibrosis is characterised by a fulminant course and extremely poor prognosis, primarily due to treatment-resistant disease. The prognostic value of degree of marrow fibrosis in de novo AML has been poorly investigated. We describe a case of extensive myelofibrosis associated with acute erythroblastic leukaemia (AML-M6) that responded to induction therapy of the leukaemia.
Myelofibrosis
;
Acute
;
Leukemia, Myelocytic, Acute
;
therapeutic aspects
;
prognostic
10.Multiplex PCR for the detection of urogenital pathogens in mothers and newborns.
Tetty Aman Nasution ; S F Cheong ; C T Lim ; E W K Leong ; Y F Ngeow
The Malaysian journal of pathology 2007;29(1):19-24
Two duplex PCR assays were established for the detection of C. trachomatis (Ct), N. gonorrhoeae (GC), M. hominis (Mh), and U. urealyticum (Uu). These assays were used on clinical specimens obtained from women with Premature Rupture of Membrane or Post Partum Fever, from preterm infants, as well as from women with uneventful pregnancies and their babies delivered vaginally at term. The analytical sensitivity of the duplex PCR assays with internal controls incorporated is 7.0, 19.0, 5x10(3) and 7x10(2) genome copies per reaction for Ct, GC, Mh and Uu respectively. Specificity was demonstrated by the amplification of only target DNA in the presence of other organisms. Among 40 women with normal, at term, deliveries, there were 6 positives for Ct, 2 for GC and 1 for Uu. None of these women had signs of genital tract infection. The Mh/Uu PCR was positive in 11 of 40 PROM cases, with 7 women positive for Uu, 2 for Mh and 2 others for both organisms. Of 40 blood cultures taken from post-partum maternal infections, 6 were positive for Ct and 1 for Mh. Respiratory secretions from 30 premature neonates yielded 5 positives for Uu and one each for Mh and Ct. In contrast, there was only 1 positive result (for Mh) in 30 mature neonates. With 1 exception, all mycoplasma and ureaplasma positives were confirmed by culture and the concordance between paired tracheal aspirates and nasopharyngeal swabs from neonates was 96.7%. These results show the potential use of the duplex PCR assays for the diagnosis of maternal and neonatal disease caused by the four urogenital pathogens.
Polymerase Chain Reaction
;
Human Females
;
seconds
;
Neisseria gonorrhoeae
;
Infant, Newborn