1.Primary intraventricular lymphoma with diffuse leptomeningeal spread at presentation.
Hasyma Abu HASSAN ; Norlisah M RAMLI ; Kartini RAHMAT
Annals of the Academy of Medicine, Singapore 2012;41(6):268-270
Aged
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Brain Neoplasms
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diagnosis
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pathology
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Central Nervous System Neoplasms
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diagnosis
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pathology
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Fatal Outcome
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Female
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Humans
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Lymphoma
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diagnosis
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pathology
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Meningeal Neoplasms
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diagnosis
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secondary
2.One Stop Centre Staging by Contrast-Enhanced 18F-FDG PET/CT in Preoperative Assessment of Ovarian Cancer and Proposed Diagnostic Imaging Algorithm: A single centre experience in Malaysia
Subapriya Suppiah ; Hasyma Abu Hassan ; Wing Liong Chang
Malaysian Journal of Medicine and Health Sciences 2017;13(2):29-37
Introduction: Suspicious adnexal masses need to be investigated thoroughly as it may represent ovarian cancer, which
is the fourth most common gynaecological cancer in Malaysia. Conventional cross sectional imaging may reveal
non-specific findings, thus lead to unnecessary biopsies. 18F-Fluorodeoxyglucose positron emission tomography/
computed tomography (18F-FDG PET/CT) has emerged as a useful tool, for characterization of indeterminate
adnexal masses. Most studies have been conducted in Western population, and little information is available in Asian
population in general and Malaysian population in particular. Methods: Prospective study of women with suspicious
adnexal masses, referred to the Centre for Nuclear Diagnostic Imaging, Universiti Putra Malaysia to undergo preoperative
whole-body contrast-enhanced 18F-FDG PET/CT scans from January 2014 to January 2016. Subjects
underwent Contrast-Enhanced Computed Tomography (CECT) scans followed by positron emission tomography
(PET) scans using a hybrid scanner. Two radiologists analyzed the CECT and PET/CT images by consensus; blinded to
the HPE results. Then the PET/CT findings were correlated with HPE results as the gold standard. Results: 11 wholebody
PET/CT scans and 18 adnexal masses (12 HPE-proven malignant lesions and 6 benign lesions) were analyzed.
The sensitivity, specificity, PPV, and NPV of CECT alone compared to PET/CT was 91.7%, 50.0%, 78.6%, and 75.0%
vs. 91.7%, 100%, 100% and 85.7% respectively. Conclusions: Improved diagnostic accuracy for characterizing
benign and malignant adnexal masses can be achieved using contrast-enhanced 18F-FDG PET/CT, making it a
potential investigation of choice which can help in treatment planning.
3.Life table of Synthesiomyia nudiseta (Van der Wulp) (Diptera: Muscidae) under uncontrolled laboratory environments – a preliminary study
Aruna Devi, A. ; Abu Hassan, A.* ; Kumara, T.K. ; Che Salmah, M.R.
Tropical Biomedicine 2011;28(3):524-530
The life history of the male and female of the indoor forensic fly, Synthesiomyia
nudiseta was studied under fluctuating temperature of indoor environments and analysed
based on the age-stage and two sex life table. The life cycle of S. nudiseta was 14.0±1.0 days
from the egg stage to adult emergence. The population parameters calculated were; net
reproduction rate (Ro= 108.6), mean generation time (To= 12.2), intrinsic rate of increase (rm=
0.38), and finite rate of increase (λ= 1.46). The pre-oviposition period (APOP) was 6.0± 0.1
days. All population parameters suggested that S. nudiseta exhibits the r-strategist
characteristics.
4.Larval aggregation on a burned human remain
Kumara, T.K. ; Abu Hassan, A. ; Che Salmah, M.R. ; Bhupinder, S.
Tropical Biomedicine 2012;29(1):197-199
Abstract. A burned human remain was found outdoor (5º 27’ N, 100º 16’ E) in Penang Island. The deceased was last seen alive on 23 April 2010 at 2230 h and was found burned on 24 April 2010 at 1920 h. Larval aggregation of second instar Chrysomya megacephala was observed on the chest of the deceased.
6.Contribution of public places in proliferation of dengue vectors in Penang Island, Malaysia
Maimusa Hamisu Alhaji ; Ahmad Hassan Abu ; Ahmad Hamdan ; Dieng Hamady ; Rahim Junaid
Asian Pacific Journal of Tropical Biomedicine 2017;7(3):183-187
Objective: To determine abundance, distribution and diversity of potential breeding container habitats of the dengue vectors in public places including schools, restaurants, mosques and parks in southwest areas of Penang Island, Malaysia. Methods: Premises at restaurants, schools, parks and mosques were surveyed simulta-neously and inspected visually for container habitats and production of immature mosquitoes from March 2015 to March 2016. Abundance (mean ± SE) of breeding containers between sites was compared using One-way ANOVA. Independent sample t-test was used to compare total number of Aedes albopictus (Ae. albopictus) and Aedes aegypti (Ae. aegypti) surveyed. Results: The surveyed locations yielded a total of 3741 breeding containers and 19537 immature mosquitoes from four areas. Concurrent artificial and natural containers pro-duced 78.4%immature Ae. albopictus and 6.3%Ae. aegypti mosquitoes in wet season, with 14.2% Ae. albopictus and 1.1% Ae. aegypti mosquitoes in dry season. Artificial containers accounted for 98.1% of the total containers recorded, with restaurants being the most productive locations (8012) and schools being the least productive (2234). Conclusions: It was concluded that public places are good sources of potential container habitats of Aedes mosquitoes in Penang Island, Malaysia and Ae. albopictus has exclu-sively replaced the home-grown Ae. aegypti even in urban areas. Therefore, treatment of artificial containers in such locations is critical in Aedes mosquito control campaigns during dengue outbreaks.
7.Pilot study on relation of the periapical status and quality of endodontic treatment in an adult Sudanese population
Shaima Abdel Daem Kashan ; Neamat Hassan Abu-bakr* ; Yahia Eltayib Ibrahim
Archives of Orofacial Sciences 2011;6(1):3-8
The purpose of the present cross-sectional pilot study
was to evaluate the influence of the quality of root canal fillings and
coronal restorations on the periradicular status of these teeth.
Seventy adult patients attended the Conservative dentistry clinic
(Faculty of Dentistry, University of Khartoum), seeking routine
dental care (not emergency care) were included. Patients were
examined and the coronal restoration status was scored according
to a modification of Ryge’s criteria for marginal adaptation. The
quality of the root filling was assessed radiographically for length
and homogeneity. The periapical status was categorized on the
basis of presence or absence of signs of apical periodontitis (AP).
The relationship between coronal status, quality of root filling and
periapical health was determined statistically using Χ2 test. Thirtyfour
teeth (48.57%) showed signs of AP. The combination of
adequate coronal restoration and adequate root filling resulted in
significantly reduced incidence of apical periodontist of 12.5%
compared to 76.47% presence of AP when both parameters
scored as inadequate. There was statistically significant relation
between the quality of the treatment and the periapical status (p =
0.001). The incidence of AP in root-filled teeth was high. The
importance of a good coronal restoration and an adequate root
filling should be stressed as they both influence the periapical
health.
8.MRI findings of orbicularis oculi hypertrophy due to heavy resistance training on the inferior orbital rim
Hasyma Abu Hassan ; Norlisah Mohd Ramli ; Kenneth CS Fong ; Khean-Jin Goh
Neurology Asia 2013;18(4):427-429
Increase in cross-sectional muscle area of major muscle groups associated by heavy resistance training
has been well documented. However, there has been no published article of changes in the inferior
orbicularis oculi muscle when heavy resistance training is applied. We present a case of inferior
orbicularis hypertrophy detected on MRI in a gentleman who practised heavy resistance training
using his lower eyelids.
9.Determination of malathion levels and the effect of malathion on the growth of Chrysomya megacephala (Fibricius) in malathion-exposed rat carcass.
Rashid Rumiza Abd ; Khairul Osman ; Ismail Mohd Iswadi ; Zuha Raja Muhammad ; Hassan Rogaya Abu
Tropical biomedicine 2008;25(3):184-90
This study was conducted to examine the effect of malathion on the development of Chrysomya megacephala. A total of 12 adult Sprague-Dawley rats was divided into 4 groups. Each animal in the 4 groups was given orally 0 (control), 10, 25 and 50ml/kg body weight of malathion, respectively. Chrysomya megacephala larvae were then allowed to grow on the liver of carcass. Larvae development was estimated by means of weight and length, time of adult emergence and survival rate. Results indicated that for the first 6 to 30 hours, larvae from control group developed more rapidly than larvae feeding on tissue containing malathion. However, the 3 doses of malathion did not exhibit significant impact on larvae length and weight. The time required for adult emergence was significantly greater for malathion-treated colony which was 10 days compared to 7 days in control colony. Control larvae of C. megacephala had higher survival rate compared to larvae exposed to the three different doses of malathion. Analysis of the tissues indicated that all rats and fly samples were positive for malathion. Malathion concentration was highest in liver. It was concluded that the presence of malathion altered the development rate of C. megacephala and thus disrupted normal postmortem interval estimation.
Malathion
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Chrysomya megacephala
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development aspects
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Adult
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Carbon ion
10.Population analysis of Aedes albopictus (Skuse) (Diptera:Culicidae) under uncontrolled laboratory conditions.
H Nur Aida ; A Abu Hassan ; A T Nurita ; M R Che Salmah ; B Norasmah
Tropical biomedicine 2008;25(2):117-25
A semi laboratory experiment using 3 cohorts of Aedes albopictus adults was performed to obtain age-specific mortality and fecundity information and to derive statistical estimates of some population growth parameters. Life expectancy was calculated for both males and females. The following population parameters were estimated: intrinsic rate of increase (rm= 0.21), net reproductive (replacement) rate (Ro= 68.70), age at mean cohort reproduction (To=10.55 days), birth rate (B=0.23), death rate (D=0.02) and generation time (G=20.14 days). The high rm/B (0.91) and B/D (11.50) ratios indicated the high colonizing ability of Ae. albopictus in nature.
Upper case Bee
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Aedes albopictus
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Upper case dee
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Population
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Culicidae