MyMedR

Fulltext Unicystic ameloblastoma: a new entity?

Zain R

Med J Malaysia, 1986 Dec;41(4):370-3.

This article consists of two selected case reports of a recently named odontogenic tumour, unicystic ameloblastoma. The clinical and radiographic findings of the two cases mimic that of odontogenic cysts but not dentigerous cysts as in most reported, cases. Histologically, either a normal or ameloblastomatous cyst lining is evident. Other features of ameloblastoma are present within the cyst wall or as luminal nodules within the cystic space. A review of the literature indicates that this is a non-aggressive tumour with a low recurrence rate.

Matched MeSH terms: Ameloblastoma/radiography; Mandibular Diseases/radiography; Mandibular Neoplasms/radiography; Odontogenic Cysts/radiography

Unicystic ameloblastoma: a late recurrence with pseudo-glandular features. A case report

Khoo SP, High AS, Awang MN

Singapore Dent J, 1995 Jul;20(1):21-3.

PMID: 9582685

A case of unicystic ameloblastoma which recurred after 15 years showing unusual histological features is reported. The prominent pseudo-glandular features present are described. This case highlights the importance of extensive histological examination for more characteristic features of ameloblastoma to reach a correct diagnosis.

Matched MeSH terms: Ameloblastoma/radiography; Mandible/radiography; Mandibular Neoplasms/radiography; Neoplasm Recurrence, Local/radiography

Unicystic Ameloblastoma: A Perception for the Cautious Interpretation of Radiographic and Histological Findings

Arora S

J Coll Physicians Surg Pak, 2015 Oct;25(10):761764-764.

PMID: 26454399 DOI: 10.2015/JCPSP.761764

The term Unicystic Ameloblastoma (UA) refers to those cystic lesions that show clinical and radiological characteristics of an odontogenic cyst but on histological examination show a typical ameloblastomatous epithelium lining part of the cyst cavity, with or without luminal and/or mural tumor growth. Till date, lot of controversies exist among oral surgeons and oral pathologists regarding this entity. An attempt is being made here to discuss all the diagnostic dilemmas associated with UA.

Matched MeSH terms: Ameloblastoma/radiography; Mandibular Neoplasms/radiography; Odontogenic Cysts/radiography

Fulltext Understanding the dental need and care during pregnancy: a review

Ngeow WC, Chai WL

Med J Malaysia, 1999 Mar;54(1):146-50.

PMID: 10972020

This paper reviews the oral and dental lesions that are seen during pregnancy. Trimester approach should be adopted in the management of the pregnant patients. A good dental preventive programme is essential. The significance of prescribing fluoride supplements and the use of dental radiography during pregnancy is also briefly reviewed.

Matched MeSH terms: Radiography, Dental; Tooth Diseases/radiography

Uncommon radiological findings: a case report

Tandjung YR, Hong CP, Nambiar P, Ibrahim N

Int Dent J, 2007 Jun;57(3):173-6.

PMID: 17695738

A 50-year-old friendly and attractive Chinese lady was examined by the Primary Care Unit, Faculty of Dentistry, University of Malaya. Her requests for treatment included implants and crowns. Two periapical radiographs of teeth 16 and 48 were taken to aid diagnosis. Interestingly, pin-like radio-opaque objects were found over the crown of the impacted tooth 15 and also tooth 17. These objects were initially interpreted as silver points or radiographic artifacts but further investigation employing panoramic radiography revealed the distribution of more radio-opaque objects in the orofacial region. Based on a review of the literature and the opinion of experienced radiology and oral surgery lecturers, these foreign radio-opaque objects were diagnosed as susuks or charm needles.

Matched MeSH terms: Radiography, Panoramic*

Fulltext Ultrasound (US) and computed tomographic (CT) appearances of large (giant) hepatic cavernous hemangiomas

Samad SA, Maimunah A, Zulfiqar A, Zaharah M

Med J Malaysia, 1995 Mar;50(1):82-6.

PMID: 7752982

The sonographic and CT appearances of 9 large cavernous hemangiomas of the liver were studied. On sonography, 6 masses (67%) exhibit heterogenous echo pattern; where in 2 patients the echotexture was a mixture of hypoechoic and isoechoic areas and in 4 patients there are varying amounts of bright hyperreflective areas similar to the texture typical of small hemangiomas. The masses were predominantly hypoechoic in the remaining 3 patients (33%). Incremental bolus or bolus-infusion dynamic CT showed peripheral contrast enhancement of varying intensities and thickness in all patients. The lesions were incorrectly diagnosed as hepatomas in 4 patients, suspected as hemangiomas with a differential diagnosis of hepatomas in 4 patients and an early liver abscess in 1 patient. It is concluded that large cavernous hemangiomas of the liver do not exhibit the typical homogenous hyperreflective echotexture as exhibited by small lesions and they mimic primary and secondary hepatic neoplasms. However, the diagnosis of hemangioma should be entertained when such a mass contains bright hyperechoic areas within its heterogenous echo pattern and exhibit peripheral enhancement on contrast enhanced CT. In addition to correlation with appropriate clinical information, confirmation of diagnosis include delayed scanning during a routine incremental bolus dynamic CT, single-slice dynamic contrast enhanced CT, angiography or isotope scintigraphy and magnetic resonance imaging depending on the availability of facility.

Matched MeSH terms: Hemangioma, Cavernous/radiography*; Liver Neoplasms/radiography*

Fulltext UWB Antenna with Enhanced Directivity for Applications in Microwave Medical Imaging

Awan D, Bashir S, Khan S, Al-Bawri SS, Dalarsson M

Sensors (Basel), 2024 Feb 18;24(4).

PMID: 38400473 DOI: 10.3390/s24041315

Microwave medical imaging (MMI) is experiencing a surge in research interest, with antenna performance emerging as a key area for improvement. This work addresses this need by enhancing the directivity of a compact UWB antenna using a Yagi-Uda-inspired reflector antenna. The proposed reflector-loaded antenna (RLA) exhibited significant gain and directivity improvements compared to a non-directional reference antenna. When analyzed for MMI applications, the RLA showed a maximum increase of 4 dBi in the realized gain and of 14.26 dB in the transmitted field strength within a human breast model. Moreover, it preserved the shape of time-domain input signals with a high correlation factor of 94.86%. To further validate our approach, another non-directional antenna with proven head imaging capabilities was modified with a reflector, achieving similar directivity enhancements. The combined results demonstrate the feasibility of RLAs for improved performance in MMI systems.

Matched MeSH terms: Radiography

UV-VIS spectral evaluation of CR-39 detector exposed with diagnostic dosage

Nur Sha'dah Z, Iskandar S, Azhar A, Suhaimi M, Nur Lina R, Halimah M

Sains Malaysiana, 2014;43:953-958.

The effects of the X-ray irradiation and chemical etching on the physical and optical properties of cR-39 plastic detectors were investigated for different doses of X-ray. cR-39 detectors were etched in the solution of the 3 M of NaOH after irradiation for revelations of the track. The tracks formed on cR-39 either by irradiated X-ray or due to the effect of environment. The changes in the thickness after exposed have significant decrease in 60 kVp and started to increase in the range of 70 kVp up to 100 kVp due to the formation of oxidation layer on surface by free radicals. The optical band gaps before etching and after etching were determined by using Ultraviolet-visible (uv-Vis) spectroscopy. The optical band gap is attributed to the indirect transition due to its amorphous nature which is significantly decline trend energy in increase of the energy fluence of radiation. The Urbach's energy, is defined as the width of the tail localized states in the forbidden band gap which change increment trend as increase in dose delivered due to the distortion structure of the cR-39 in terms of the electron charges in valences electron hence attributes to the induced modification of angle bond between the neighboring atoms.

Matched MeSH terms: Radiography

Fulltext Two variants of fat embolism syndrome evolving in a young patient with multiple fractures

Bajuri MY, Johan RR, Shukur H

BMJ Case Rep, 2013;2013.

PMID: 23576653 DOI: 10.1136/bcr-2013-008631

Fat embolism syndrome (FES) is a continuum of fat emboli. Variants of FES: acute fulminant form and classic FES are postulated to represent two different pathomechanisms. Acute fulminant FES occurs during the first 24 h. It is attributed to massive mechanical blockage pulmonary vasculature by the fat emboli. The classic FES typically has a latency period of 24-36 h manifestation of respiratory failure and other signs of fat embolism. Progression of asymptomatic fat embolism with FES frequently represents inadequate treatment of hypovolaemic shock. We present a rare case of two variants of FES evolving in a patient with multiple fractures to emphasis the importance of adequate and appropriate treatment of shock in preventing the development of FES. Since supportive therapy which is a ventilatory support remains as the treatment of FES, it is appropriate to treat FES in the intensive care unit setting.

Matched MeSH terms: Embolism, Fat/radiography*; Pulmonary Embolism/radiography*; Fractures, Bone/radiography

Fulltext Twenty Years of the Malaysian Association of Medical Physics: Looking Back to Move Forwards

Zin, H. M.

Physics and Technology in Medicine, 2020;1(2):1-6.

MyJurnal

The Malaysian Association of Medical Physics (MAMP) was set up in the year 2000 to promote and further develop the field that was relatively new in Malaysia. The article briefly summarises key developments in medical physics since the first discovery of x-rays in 1895. The resulted rapid progress in the field was also highlighted and related to the pace of development in Malaysia. Key activities organised by MAMP were also addressed. The international practices related to the field and the profession were highlighted and compared to the current status in Malaysia. Although the field has progressed well in the country, there are several gaps identified to further improve the field and the profession in Malaysia.

Matched MeSH terms: Radiography

Tumour volume and lung metastasis in patients with osteosarcoma

Munajat I, Zulmi W, Norazman MZ, Wan Faisham WI

J Orthop Surg (Hong Kong), 2008 Aug;16(2):182-5.

PMID: 18725669

To assess the association between tumour volume and occurrence of lung metastasis in patients with osteosarcoma and to determine the cut-off value.

Matched MeSH terms: Radiography, Thoracic

Fulltext Tumour seeding following percutaneous needle biopsy of hepatocellular carcinoma

Qua CS, Wong CH, Goh KL

Singapore Med J, 2008 Jan;49(1):e8-11.

PMID: 18204759

We report a hepatocellular carcinoma seeding following needle biopsy in a 57-year-old man who first presented with a focal hepatic lesion at another hospital. The patient had been a hepatitis B carrier for 20 years. Initial surveillance ultrasonography showed a lesion in segment IV, in the background of non-cirrhotic liver and normal serum alpha-foetoprotein level (8 ng/ml). A percutaneous needle biopsy was done and histopathology confirmed well-differentiated hepatocellular carcinoma. The patient had refused surgery and preferred to try traditional medicine. He presented to us four months after the initial biopsy with epigastric swelling. This was found to be due to a tumour seeding along the previous biopsy tract. He was given radiofrequency ablation (RFA) of tumour along the needle tract, in addition to the primary tumour. We conclude that the need for percutaneous needle biopsy should be critically evaluated in patients presenting with focal hepatic lesions and the role of RFA in treating tumour seeding needs further evaluation.

Matched MeSH terms: Radiography, Interventional

Fulltext Tuberous sclerosis and angiomyolipomas of the kidneys: a case report

Segasothy M, Yi AA, Mohamed S

Med J Malaysia, 1983 Jun;38(2):94-7.

PMID: 6621453

Tuberous sclerosis is a disease with a well known association with renal masses, both cysts and angiomyolipomas. Reported here is a case of a 26 year old woman who had, in addition to angiomyolipomas of the kidneys, adenoma sebaceum, paraungual fibromas, shagreen patches and cerebral tubers.

Matched MeSH terms: Hemangioma/radiography; Kidney Neoplasms/radiography; Lipoma/radiography

Fulltext Tuberculosis of the distal end of the radius mimicking a giant-cell tumour

Pan KL, Ibrahim S

Med J Malaysia, 2000 Sep;55 Suppl C:105-6.

PMID: 11200036

We report a case of a lady presenting with a lesion in the distal radius with classical radiological features of a giant-cell tumour. These tumours are often resected without preliminary histological confirmation. A biopsy done in this patient showed it to be tuberculosis.

Matched MeSH terms: Bone Neoplasms/radiography*; Giant Cell Tumors/radiography*; Radius/radiography*; Tuberculosis, Osteoarticular/radiography*

Fulltext Tuberculosis in Pediatric Antiretroviral Therapy Programs in Low- and Middle-Income Countries: Diagnosis and Screening Practices

Ballif M, Renner L, Claude Dusingize J, Leroy V, Ayaya S, Wools-Kaloustian K, et al.

J Pediatric Infect Dis Soc, 2015 Mar;4(1):30-8.

PMID: 26407355 DOI: 10.1093/jpids/piu020

BACKGROUND: The global burden of childhood tuberculosis (TB) is estimated to be 0.5 million new cases per year. Human immunodeficiency virus (HIV)-infected children are at high risk for TB. Diagnosis of TB in HIV-infected children remains a major challenge.

METHODS: We describe TB diagnosis and screening practices of pediatric antiretroviral treatment (ART) programs in Africa, Asia, the Caribbean, and Central and South America. We used web-based questionnaires to collect data on ART programs and patients seen from March to July 2012. Forty-three ART programs treating children in 23 countries participated in the study.

RESULTS: Sputum microscopy and chest Radiograph were available at all programs, mycobacterial culture in 40 (93%) sites, gastric aspiration in 27 (63%), induced sputum in 23 (54%), and Xpert MTB/RIF in 16 (37%) sites. Screening practices to exclude active TB before starting ART included contact history in 41 sites (84%), symptom screening in 38 (88%), and chest Radiograph in 34 sites (79%). The use of diagnostic tools was examined among 146 children diagnosed with TB during the study period. Chest Radiograph was used in 125 (86%) children, sputum microscopy in 76 (52%), induced sputum microscopy in 38 (26%), gastric aspirate microscopy in 35 (24%), culture in 25 (17%), and Xpert MTB/RIF in 11 (8%) children.

CONCLUSIONS: Induced sputum and Xpert MTB/RIF were infrequently available to diagnose childhood TB, and screening was largely based on symptom identification. There is an urgent need to improve the capacity of ART programs in low- and middle-income countries to exclude and diagnose TB in HIV-infected children.

Matched MeSH terms: Radiography, Thoracic/economics; Radiography, Thoracic/methods

Tuberculosis in Muruts of Pensiangan in Sabah

Roy RN

Med J Aust, 1969 Apr 26;1(17):842-8.

PMID: 4977736

Matched MeSH terms: Tuberculosis, Pulmonary/radiography

Tuberculoma of the lung; a report of 40 cases seen in Tan Tock Seng Hospital, 1951-1952

GROVE-WHITE RJ

Med J Malaya, 1954 Mar;8(3):217-21.

PMID: 13164692

Matched MeSH terms: Tuberculosis, Pulmonary/radiography*

Fulltext Treatment outcome of superficial cerebral abscess: an analysis of two surgical methods

Tan WM, Adnan JS, Mohamad Haspani MS

Malays J Med Sci, 2010 Jan;17(1):23-9.

PMID: 22135522 MyJurnal

The purpose of the study is to compare the two surgical methods (burr hole and craniotomy) used as treatment for superficial cerebral abscess and its outcome in terms of radiological clearance on brain CT, improvement of neurological status, the need for repeated surgery, and survival and morbidity at three months after surgery. This report is a retrospective case review of the patients who were treated surgically for superficial cerebral abscess in Hospital Kuala Lumpur (HKL) and Hospital Sultanah Aminah (HSA) over a period of four years (2004 to 2007).

Matched MeSH terms: Radiography

Treating and healing coronary artery ectasia disease with Bioresorbable Vascular Scaffold

Yew KL

Int J Cardiol, 2015;190:99-101.

PMID: 25918057 DOI: 10.1016/j.ijcard.2015.04.150

Matched MeSH terms: Coronary Artery Disease/radiography*; Dilatation, Pathologic/radiography

Fulltext Traumatic transection of aorta

Ho CK, Yip KT, Eng JB, Rajan L, Tan BH

Med J Malaysia, 2001 Sep;56(3):374-7.

PMID: 11732086

A 16 year-old man presented with fracture of both his femurs after a road traffic accident. Chest radiograph revealed mediastinal widening. Subsequent CT scan and arch aortogram confirmed the findings of traumatic aortic arch transection at the isthmus. He underwent successful surgical repair. High index of suspicion and prompt actions are important in managing this potentially fatal but treatable condition.

Matched MeSH terms: Radiography, Thoracic

Displaying publications 41 - 60 of 1039 in total