Displaying publications 21 - 40 of 1046 in total

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  1. Fikri AS, Kroiss A, Ahmad AZ, Zanariah H, Lau WF, Uprimny C, et al.
    Acta Radiol, 2014 Jun;55(5):631-40.
    PMID: 24037430 DOI: 10.1177/0284185113504330
    To our knowledge, data are lacking on the role of 18F-FDG PET/CT in the localization and prediction of neuroendocrine tumors, in particular the pheochromocytoma/paraganglioma (PCC/PGL) group.
    Matched MeSH terms: Tomography, X-Ray Computed
  2. Ponnampalam SN, Tan WY, Wazir NN, George J
    Acta Radiol Short Rep, 2012;1(1):1-3.
    PMID: 23986826 DOI: 10.1258/arsr.2012.110028
    We report a very rare case of a high grade osteosarcoma of the cervical spine in a 62-year-old woman. She presented with a relatively short history of a swelling in the posterior neck and cervical lymphadenopathy. This was associated with hoarseness of the voice, significant weight loss, and right upper arm radicular symptoms initially, progressing to paraplegia. Based on MR and CT imaging of the neck and an excision biopsy of an enlarged right supraclavicular lymph node, the histology revealed a high grade primary osteosarcoma of the cervical spine.
    Matched MeSH terms: Tomography, X-Ray Computed
  3. Woolley AK, Hedger NA, Veettil RP
    Acute Med, 2013;12(2):107-10.
    PMID: 23732136
    Pyrexia of unknown origin (PUO) is a frequent presentation to the Acute Medical Unit, and is a source of significant morbidity, both the psychological burden of an uncertain diagnosis and prognosis and untreated complications of the underlying pathology. We present a problem based review of the management of PUO, illustrated by a patient who recently presented to our unit with fever and systemic malaise after returning from abroad and in whom no cause could be found for more than two months. We describe a structured approach making use of complex modern techniques such as Positron Emission Tomography-Computed Tomography (PET-CT) which ultimately provided the diagnosis for our patient.
    Matched MeSH terms: Tomography, X-Ray Computed
  4. Bolong MF, Shanmuga Ratnam S, Raja Badrol Hisham RMBAB, Pang Tze Ping N
    Adv Emerg Nurs J, 2023 10 27;45(4):270-274.
    PMID: 37885079 DOI: 10.1097/TME.0000000000000481
    Re-expansion pulmonary edema (RPE) after chest drain insertion is rare. The objective of this clinical case report is to highlight the importance of this chest drain insertion complication. A 35-year-old man presented to the emergency department with a chief complaint of shortness of breath and pleuritic chest pain. Further physical examination and radiographic investigations showed a left-sided hemipneumothorax. A chest drain was inserted, but subsequently the patient developed worsening shortness of breath, desaturation, and coughed out pink frothy sputum. Repeated chest radiographic and computed tomographic thorax findings suggested RPE. A nonrebreathable mask with high-flow oxygen was given to the patient to maintain his oxygen saturation. The patient was referred to the cardiothoracic team and was admitted to the hospital. Despite conservative management in the ward, the patient underwent lung decortication. Postdecortication, the left-sided lung re-expanded well, and the patient was discharged home. This case highlighted this rare, potentially fatal complication of chest drain insertion for spontaneous pneumothorax.
    Matched MeSH terms: Tomography, X-Ray Computed
  5. Fijasri NH, Muhammad Asri NA, Mohd Shah MS, Abd Samad MR, Omar N
    Afr J Paediatr Surg, 2023;20(3):245-248.
    PMID: 37470566 DOI: 10.4103/ajps.AJPS_10_21
    Congenital pulmonary airway malformation (CPAM) together with oesophageal atresia and tracheoesophageal fistula (TOF) is a very rare condition in neonates. We presented a case of an infant with Gross type C oesophageal atresia with TOF coexisting with Stocker Type III CPAM in our centre. It is interesting to know that TOF associated with type III CPAM has never been reported in the literature. The child was delivered through caesarean section, and because of respiratory distress post-delivery, endotracheal intubation was carried out immediately. CPAM was diagnosed by a suspicious finding from the initial chest X-ray and the diagnosis was confirmed through computed tomography scan of the chest. The patient was initially stabilised in a neonatal intensive care unit (NICU), and after the successful ligation of fistula and surgical repair of TOF, lung recruitment was started by high flow oscillatory ventilation. The patient recovered well without complications and able to maintain good saturation without oxygen support through the stay in the neonatal unit. Early recognition of this rare association is essential for immediate transfer to NICU, the intervention of any early life-threatening complications, and for vigilant monitoring in the postoperative period.
    Matched MeSH terms: Tomography, X-Ray Computed/methods
  6. Lim JA
    Am J Obstet Gynecol, 2018 11;219(5):502.
    PMID: 29678504 DOI: 10.1016/j.ajog.2018.04.021
    Matched MeSH terms: Tomography, X-Ray Computed
  7. Jumaat BH, Dahalan A, Mohamad M
    Am J Ophthalmol, 2003 Feb;135(2):254-6.
    PMID: 12566045
    PURPOSE: To report a case of choroidal osteoma presenting with massive subretinal hemorrhage not associated with choroidal neovascularisation (CNV).

    DESIGN: Case report.

    METHODS: An 18-year-old man presented with sudden loss of vision in the right eye following competitive swimming. He was found to have a massive subretinal hemorrhage involving the macula.

    RESULTS: Following resolution of the hemorrhage, the patient was found to have an underlying choroidal osteoma. There was no evidence of choroidal neovascularisation clinically and angiographically. He regained his normal vision.

    CONCLUSIONS: Choroidal osteoma presenting with massive subretinal hemorrhage not associated with underlying choroidal neovascularization need not result in poor visual outcome.

    Matched MeSH terms: Tomography, X-Ray Computed
  8. Tan VES
    Am J Otolaryngol, 2011 Jan-Feb;32(1):62-8.
    PMID: 20031268 DOI: 10.1016/j.amjoto.2009.10.002
    Objective: Subperiosteal orbital abscesses (SPOAs) secondary to acute sinusitis are rare occurrences in the pediatric age group, more so in the neonatal period. Here, a rare case of SPOA in a 38-day-old newborn later drained via endoscopic sinus surgery is included also. This review describes the demographic data, clinical history, treatment, microbiology results, complications, and outcome.
    Methods: The admission records for all the patients who were admitted to the Pediatric Surgical Ward in Sarawak General Hospital, Kuching, Malaysia, between January 2004 and May 2009 were retrospectively reviewed. Records of patients who presented with preseptal cellulitis, orbital cellulitis, subperiosteal abscess (extraconal), orbital abscess (intraconal), and cavernous sinus thrombosis were closely studied. Ophthalmology consultations were obtained in all these cases. Ultimately, 3 patients having SPOA secondary to acute sinusitis were selected for this review.
    Results: All patients were male with rapid onset of periorbital signs, absence of purulent rhinorrhea, and presence of significant thrombocytosis (exceeding 500 × 109/L). The 38-day-old newborn had mixed infection of methicillin-resistant coagulase-negative Staphylococcus bacteremia and local Acinetobacter eye infection with Staphylococcus aureus in the SPOA. All had medially located SPOA that was adequately drained via endoscopic sinus surgery, resulting in full recovery.
    Conclusion: Newborns with preexisting risk factors and immature immunity are at risk of severe and rare infections. Contrast-enhanced paranasal sinus computed tomographic scan is mandatory and reliable to differentiate preseptal and postseptal orbital infection, as both conditions can present similarly and rapidly deteriorate. In the contrast-enhanced computed tomography–demonstrable SPOA, endoscopic sinus surgery drainage of the abscess proved to be safe and reliable as the main treatment modality. All patients recovered well without complications.
    Matched MeSH terms: Tomography, X-Ray Computed
  9. Zulkiflee AB, Prepageran N, Philip R
    Am J Otolaryngol, 2008 Jan-Feb;29(1):72-4.
    PMID: 18061838 DOI: 10.1016/j.amjoto.2007.02.004
    INTRODUCTION: Melioidosis is a life-threatening disease caused by B. pseudomallei. It is endemic in Southeast Asia with a few reports from the Western world. It is transmitted via inhalation, ingestion or direct contact with an open wound. Clinically it may present with local or systemic symptoms. Mortality rate is very high in systemic disease; but local infection is usually mild, which causes delay in seeking medical attention.
    CASE REPORT: We report a case of neck melioidosis presenting as a parapharyngeal abscess that was successfully managed with incision and drainage and intravenous ceftazidime and co-trimoxazole for 6 weeks followed by eradication therapy with oral co amoxiclav.
    CONCLUSION: Neck melioidosis must be considered one of differential diagnoses for "cold abscesses" of the neck, especially in an endemic area, in Asian migrants, or in those with history of previous visit from the endemic regions.
    Matched MeSH terms: Tomography, X-Ray Computed
  10. Thong JF, Low D, Tham A, Liew C, Tan TY, Yuen HW
    Am J Otolaryngol, 2017 Mar-Apr;38(2):218-221.
    PMID: 28139318 DOI: 10.1016/j.amjoto.2017.01.015
    OBJECTIVE: Recent studies demonstrated the utility of high-resolution computed tomography (HRCT) scans in measuring basal cochlear length and cochlear insertion depths. These studies showed significant variations in the anatomy of the cochlea amongst humans. The aim of our study was to investigate for gender and racial variations in the basal turn length of the human cochlea in an Asian population.

    METHOD: HRCT temporal bone data from year 1997 till 2012 of patients with normally developed cochleae who reported with otologic disease was obtained. Reconstruction of the full basal turn was performed for both ears. The largest distance from the midpoint of the round window, through the midmodiolar axis, to the lateral wall was measured (distance A). Length of the lateral wall of the cochlea to the first turn (360°) was calculated and statistically analyzed.

    RESULTS: HRCT temporal bone data from 161 patients was initially obtained. Four patients were subsequently excluded from the study as they were of various other racial groups. Study group therefore comprised of 157 patients (314 cochleae). Mean distance A was statistically different between the two sides of the ear (right 9.09mm; left 9.06mm; p=0.0069). Significant gender and racial differences were also found. Mean distance A was 9.17mm in males and 8.97mm in females (p=0.0016). The racial groups were Chinese (39%), Malay (38%) and Indian (22%). Between racial groups, mean distance A was 9.11mm (Chinese), 9.11mm (Malays) and 8.99mm (Indians). The mean basal turn lengths ranged from 19.71mm to 25.09mm. With gender factored in, significant variation in mean basal turn lengths was found across all three racial groups (p=0.04).

    CONCLUSION: The view of the basal turn of the cochlea from HRCT is simple to obtain and reproducible. This study found significant differences in basal cochlear length amongst male and female Asian patients, as well as amongst various racial groups. This has implications for cochlear electrode insertion as well as electrode array design.
    Matched MeSH terms: Tomography, X-Ray Computed/methods*
  11. Alhamad T
    Am J Respir Crit Care Med, 2011 Aug 15;184(4):484.
    PMID: 21844517 DOI: 10.1164/rccm.201012-2018IM
    Matched MeSH terms: Tomography, X-Ray Computed
  12. Waran V, Menon R, Pancharatnam D, Rathinam AK, Balakrishnan YK, Tung TS, et al.
    Am J Rhinol Allergy, 2012 Sep-Oct;26(5):e132-6.
    PMID: 23168144 DOI: 10.2500/ajra.2012.26.3808
    Surgical navigation systems have been used increasingly in guiding complex ear, nose, and throat surgery. Although these are helpful, they are only beneficial intraoperatively; thus, the novice surgeon will not have the preoperative training or exposure that can be vital in complex procedures. In addition, there is a lack of reliable models to give surgeons hands-on training in performing such procedures.
    Matched MeSH terms: Tomography, X-Ray Computed
  13. Ibrahim A, Alias A, Nor FM, Swarhib M, Abu Bakar SN, Das S
    Anat Cell Biol, 2017 Jun;50(2):86-92.
    PMID: 28713610 DOI: 10.5115/acb.2017.50.2.86
    Sex determination is one of the main steps in the identification of human skeletal remains. It constitutes an initial step in personal identification from the skeletal remains. The aim of the present study was to provide the population-specific sex discriminating osteometric standards to aid human identification. The present study was conducted on 87 (174 sides) slices of crania using postmortem computed tomography in 45 males and 42 females, aged between 18 and 75 years. About 22 parameters of crania were measured using Osirix software 3-D Volume Rendering. Results showed that all parameters were significantly higher in males than in females except for orbital height of the left eye by independent t test (P<0.01). By discriminant analysis, the classification accuracy was 85.1%, and by regression, the classification accuracy ranged from 78.2% to 86.2%. In conclusion, cranium can be used to distinguish between males and females in the Malaysian population. The results of the present study can be used as a forensic tool for identification of unknown crania.
    Matched MeSH terms: Tomography, X-Ray Computed
  14. Chan YK, Ng KP, Chiu CL, Rajan G, Tan KC, Lim YC
    Anesthesiology, 2001 Jan;94(1):167-9.
    PMID: 11135739
    Matched MeSH terms: Tomography, X-Ray Computed
  15. Yeow GPV, Yeow DGE, Sankaran P, Maiyauen T, Sharif MS
    Ann Hepatobiliary Pancreat Surg, 2019 Feb;23(1):77-79.
    PMID: 30863813 DOI: 10.14701/ahbps.2019.23.1.77
    The recurrence of hepatocellular carcinoma (HCC) can mainly be divided into two phases or types: the intrahepatic recurrence (IHR) and the extrahepatic recurrence (EHR). Generally speaking, the EHR is usually referenced as being the less common of the two types or categories. In a post-hemihepatectomy patient with routine surveillance at 6 months, it was noted that the patient appeared to have an elevated alpha-fetoprotein, and also complained of vague lower abdominal pain. The accompanying computed tomography scan revealed a 6 cm-sized heterogeneous mass located at the pelvis region. Next, during a laparotomy for resection, the tumor was found to be bleeding from the omental deposition. In conclusion, a high index of suspicion and early surgical intervention can help in detecting possible bleeding extrahepatic recurrence in the background of a patient with history of HCC.
    Matched MeSH terms: Tomography, X-Ray Computed
  16. Lim GT, Teh YG, Ng CY, Mohd Khalid H, Hayati F
    Ann Med Surg (Lond), 2021 Feb;62:84-87.
    PMID: 33505677 DOI: 10.1016/j.amsu.2021.01.003
    Introduction and importance: The differential diagnosis of a paediatric abdominal mass can be extensive, as it potentially involves multiple organs including gastrointestinal, genitourinary, endocrine, and gynaecological systems. Hence, a systematic approach to history taking and physical examination is needed to clinch the diagnosis. Specifically, the approach for assessing, investigating, and managing a ballotable left hypochondrial mass in a child can be challenging.

    Case presentation: We report a 10-year-old Dusun girl presenting with left hypochondrial pain and noted a left hypochondrial mass on examination. This report highlights the role of clinical imaging during the pre-operative and post-operative phases.

    Clinical discussion: Ultrasound and CT imaging was useful in determining that the tumor originated from the tail of the pancreas. The presence of a definite capsule with internal solid-cystic components helped narrowed the differential diagnosis to solid pseudopapillary neoplasm (SPN) of the pancreas. MR liver was useful to rule out liver metastasis in this child.

    Intervention and outcome: The patient was scheduled for laparotomy and tumour excision at a regional paediatric centre. Successful excision of the tumor en-mass was performed and the child's subsequent recovery was uneventful.

    Conclusion: Clinical imaging plays a critical role in the diagnosis and management of paediatric solid organ tumours. Other than renal origin, suspicion of pancreatic tail origin should be considered by clinicians when encountering a ballotable left abdominal mass.

    Matched MeSH terms: Tomography, X-Ray Computed
  17. Kumar M, Tata MD, Sahid Nik Lah NA
    Ann Med Surg (Lond), 2021 May;65:102353.
    PMID: 34007446 DOI: 10.1016/j.amsu.2021.102353
    Introduction: Signet cell carcinoma (SRCC)of the rectum is a rare subtype of the rectum cancer which accounts for only 0.8% of colorectal cancer in adolescents and young adults (AYAs) which spread aggressively to other organs and peritoneum.

    Case presentation: We present a case of 15-year-old boy from rural area, presented with chronic diarrhea and per rectal bleeding for 3 months. The diagnosis was determined by colonoscope which revealed a fungating mass identified at 10cm from anal verge. Histological examination confirmed diagnosis of signet ring cell adenocarcinoma. CT scan of the abdomen showed thickening involving the recto-sigmoid colon and rectal mass, without evidence of distant metastatic disease. The patient's carcinoembryonic antigen level was within the normal range. He underwent a colostomy and was subjected to neoadjuvant CCRT and surgery.

    Discussion: This CASE highlights the importance and challenges in achieving early diagnosis and surgical intervention of signet-ring cell carcinoma in adolescents, as most cases are detected at an advanced stage coupled with the scarcity of information on these rarer subtypes which leads to a poor prognosis.

    Conclusion: In managing Signet cell carcinoma of the colorectal, physician have to know that it has a poor prognosis in patients of any age. However, in young teenagers delayed diagnosis and treatment option are narrowed to palliative management. Genetic profiling of family members and similar environment population may be a key to early detection.

    Matched MeSH terms: Tomography, X-Ray Computed
  18. Hou LG, Prabakaran A, Rajan R, Mohd Nor FB, Ritza Kosai N
    Ann Med Surg (Lond), 2019 Nov;47:53-56.
    PMID: 31687133 DOI: 10.1016/j.amsu.2019.10.002
    Introduction: Massive localised lymphedema (MLL) is considered a rare large, pendulous localised benign overgrowth of lymphoproliferative tissue commonly seen in patients with morbid obesity. Histologically, it may be mistaken for well-differentiated liposarcoma; hence, it is also known as pseudosarcoma.

    Presentation of case: We describe the successful management of MLL of the left medial thigh in a 35-year-old man weighing 220 kgs (BMI 80.8 kgs/m2). He underwent a concurrent laparoscopic sleeve gastrectomy with surgical resection of the MLL. He recovered well and during our last follow up six months after the operation, he is ambulating well and weighs 148 kgs (BMI 54.4 kgs/m2).

    Discussion: MLL is a form of secondary lymphedema resulting in disruption or compression of normal lymphatic drainage due to fat accumulation in obese patients. Patients usually delay treatment for even up to a decade, when it becomes sufficiently large enough to restrict mobility and daily activities, or when it becomes infected. MLL is primarily a clinical diagnosis. A detailed history regarding its slow growth spanning over the years makes malignancy less likely. However, if left untreated, MLL may progress to angiosarcoma. Imaging studies such as computed tomography (CT) and a Magnetic Resonance Imaging (MRI) are usually performed to rule out malignancy or vascular malformations. A tissue biopsy is not recommended unless there are suspicious pigmented lesions.

    Conclusion: MLL remains to be underdiagnosed. Due to the obesity epidemic, clinicians must be aware of this once rare disease. The role of concurrent bariatric surgery with surgical resection of MLL warrants further studies.

    Matched MeSH terms: Tomography, X-Ray Computed
  19. Seiffge DJ, Polymeris AA, Law ZK, Krishnan K, Zietz A, Thilemann S, et al.
    Ann Neurol, 2022 Dec;92(6):921-930.
    PMID: 36054211 DOI: 10.1002/ana.26481
    OBJECTIVE: We assessed whether hematoma expansion (HE) and favorable outcome differ according to type of intracerebral hemorrhage (ICH).

    METHODS: Among participants with ICH enrolled in the TICH-2 (Tranexamic Acid for Hyperacute Primary Intracerebral Haemorrhage) trial, we assessed baseline scans for hematoma location and presence of cerebral amyloid angiopathy (CAA) using computed tomography (CT, simplified Edinburgh criteria) and magnetic resonance imaging (MRI; Boston criteria) and categorized ICH as lobar CAA, lobar non-CAA, and nonlobar. The main outcomes were HE and favorable functional outcome. We constructed multivariate regression models and assessed treatment effects using interaction terms.

    RESULTS: A total of 2,298 out of 2,325 participants were included with available CT (98.8%; median age = 71 years, interquartile range = 60-80 years; 1,014 female). Additional MRI was available in 219 patients (9.5%). Overall, 1,637 participants (71.2%) had nonlobar ICH; the remaining 661 participants (28.8%) had lobar ICH, of whom 202 patients had lobar CAA-ICH (8.8%, 173 participants according to Edinburgh and 29 participants according to Boston criteria) and 459 did not (lobar non-CAA, 20.0%). For HE, we found a significant interaction of lobar CAA ICH with time from onset to randomization (increasing risk with time, pinteraction  

    Matched MeSH terms: Tomography, X-Ray Computed
  20. Chia PL, Earnest A, Lee R, Lim J, Wong CP, Chia YW, et al.
    Ann Acad Med Singap, 2013 Sep;42(9):432-6.
    PMID: 24162317
    INTRODUCTION: In Singapore, the age-standardised event rates of myocardial infarction (MI) are 2- and 3-fold higher for Malays and Indians respectively compared to the Chinese. The objectives of this study were to determine the prevalence and quantity of coronary artery calcification (CAC) and non-calcified plaques across these 3 ethnic groups.

    MATERIALS AND METHODS: This was a retrospective descriptive study. We identified 1041 patients (810 Chinese, 139 Malays, 92 Indians) without previous history of cardiovascular disease who underwent cardiac computed tomography for atypical chest pain evaluation. A cardiologist, who was blinded to the patients' clinical demographics, reviewed all scans. We retrospectively analysed all their case records.

    RESULTS: Overall, Malays were most likely to be active smokers (P = 0.02), Indians had the highest prevalence of diabetes mellitus (P = 0.01) and Chinese had the highest mean age (P <0.0001). The overall prevalence of patients with non-calcified plaques as the only manifestation of sub-clinical coronary artery disease was 2.1%. There was no significant difference in the prevalence of CAC, mean CAC score or prevalence of non-calcified plaques among the 3 ethnic groups. Active smoking, age and hypertension were independent predictors of CAC. Non-calcified plaques were positively associated with male gender, age, dyslipidaemia and diabetes mellitus.

    CONCLUSION: The higher MI rates in Malays and Indians in Singapore cannot be explained by any difference in CAC or non-calcified plaque. More research with prospective follow-up of larger patient populations is necessary to establish if ethnic-specific calibration of CAC measures is needed to adjust for differences among ethnic groups.

    Matched MeSH terms: Tomography, X-Ray Computed
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