Publications by authors named "M F Mohd-Rohani"

6 Publications

Incidental Finding of Endometrioid Adenocarcinoma of the Ovary on 131I Whole-Body Scan.

Clin Nucl Med 2021 May 12. Epub 2021 May 12.

From the Department of Nuclear Medicine, Hospital Kuala Lumpur, Malaysia.

Abstract: A 57-year-old woman was referred for radioactive iodine therapy 12 weeks after completion thyroidectomy and left modified radical neck dissection for pT2N1Mx follicular variant papillary thyroid carcinoma. After 4 weeks of L-thyroxine withdrawal, stimulated serum thyroglobulin level was less than 0.1 ng/mL with positive thyroglobulin antibody. Posttherapy 131I scintigraphy with SPECT/CT of the head and abdominopelvic region showed thyroid residual in the neck, occipital bone metastasis, and heterogenous tracer uptake in a large peritoneal mass, likely arising from the left ovary. Left salpingo-oophorectomy was performed, and histopathologic examination revealed endometrioid carcinoma of left ovary.
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http://dx.doi.org/10.1097/RLU.0000000000003698DOI Listing
May 2021

Combined Techniques of Non-invasive Tc-Besilesomab/Tc-Sulfur Colloid with Hybrid SPECT/CT Imaging in Characterising Cellulitis from Symptomatic Perimegaprosthetic Infection: A Case Report.

Malays Orthop J 2020 Nov;14(3):188-193

Department of Nuclear Medicine, Radiotherapy and Oncology, Universiti Sains Malaysia, Kubang Kerian, Malaysia.

Megaprosthesis is used to restore the form and function of massive skeletal defects, but it is accompanied by risks of failure, mainly due to perimegaprosthetic infection (PMI). In practice, the diagnosis of infected megaprosthesis among patients with a high index of clinical suspicion, elevated serological markers, and multiple negative or inconclusive imaging can be very challenging and poses a diagnostic conundrum to many orthopaedic surgeons. We present the case of a symptomatic 26-year-old female with large B-cell lymphoma who developed cellulitis with suspected complication of PMI 15 months post-implantation. The combination of advanced nuclear medicine imaging strategies, i.e., Tc-besilesomab/Tc-sulfur colloid scintigraphy with hybrid single-photon emission computed tomography/computed tomography (SPECT/CT) scanning helps to characterise and delineate both infections. Invasive procedures such as joint aspiration and biopsy were avoided, and the patient was successfully treated with antibiotics. Hence, we report a case where advanced imaging modalities were decisive in the investigation of PMI.
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http://dx.doi.org/10.5704/MOJ.2011.032DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7752015PMC
November 2020

Bone single-photon emission computed tomography/computed tomography in cancer care in the past decade: a systematic review and meta-analysis as well as recommendations for further work.

Nucl Med Commun 2021 Jan;42(1):9-20

Department of Nuclear Medicine, The Royal Liverpool and Broadgreen University Hospitals, NHS Trust, Liverpool, UK.

Skeletal whole-body scintigraphy (WBS), although widely used as a sensitive tool for detecting metastatic bone disease in oncology cases, has relatively low specificity. Indeterminate bone lesions (IBLs) detected by WBS cause a diagnostic dilemma, which hampers further management plans. In the advent of hybrid imaging, single-photon emission computed tomography/computed tomography (SPECT/CT) has been gaining popularity as a tool to improve the characterisation of IBLs detected by WBS. As yet, there has not been a systematic review to objectively evaluate the diagnostic capabilities of SPECT/CT in this area. We conducted a systematic review of relevant electronic databases up to 30 August 2020. The outcomes of interest were the reporting of SPECT/CT to identify benign and malignant IBLs and the calculation of the sensitivity and specificity of the index test, based on histopathological examination or clinical and imaging follow-up as the reference standard. After the risk of bias and eligibility assessment, 12 articles were identified and synthesised in the meta-analysis. The pooled sensitivity and specificity of SPECT/CT for diagnosing IBLs are 93.0% [95% confidence interval (CI) 0.91-0.95] and 96.0% (95% CI 0.94-0.97), respectively. There was heterogeneity of the articles due to variable imaging protocols, duration of follow-up and scoring methods for interpreting the SPECT/CT results. The heterogeneity poses a challenge for accurate interpretation of the true diagnostic capability of SPECT/CT. In conclusion, targeted SPECT/CT improves the specificity of diagnosing bone metastases, but efforts need to be made to standardise the thresholds for SPECT/CT, methodology, as well as harmonising the reporting and interpretation criteria. We also make some recommendations for future works.
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http://dx.doi.org/10.1097/MNM.0000000000001306DOI Listing
January 2021

Tc-sodium phytate is a valid alternative to the gold-standard Tc-sulfur colloid in the measurement of gastric emptying among healthy multi-ethnic Asian population: results of a randomized cross-over trial.

BMC Gastroenterol 2020 Aug 31;20(1):293. Epub 2020 Aug 31.

Hospital USM, Universiti Sains Malaysia, Kubang Kerian, 16150, Kelantan, Malaysia.

Background: It is unclear if the Tc-sodium phytate (Tc-SP) is as reliable as the gold-standard Tc-sulfur colloid (Tc-SC) for gastric emptying scintigraphy (GES). This study is aimed to compare the emptying rates of both radiotracers in a prospective, randomized cross-over trial and to determine the normative data of a healthy multi-ethnic Asian population.

Methods: Out of the 44 healthy individuals screened, 31 (14 females; mean age: 28.4 ± 7.0 years) were enrolled and underwent GES using the standardized egg-white meal. All participants were randomly assigned to either Tc-SP or Tc-SC on the first GES session before crossed over to the other formulation after 2 weeks.

Results: Both kits achieved the radiochemical purities of > 95%. The median rate (95th upper normative limit) of gastric emptying, reported as total gastric meal retention between Tc-SP and Tc-SC, was found to be comparable at all measured time points: 0.5 h [85.0% (96.6%) vs. 82.0% (94.0%)], 1 h [70.0% (86.4%) vs. 65.0% (86.6%)], 2 h [31.0% (55.8%) vs. 25.0% (64.4%)], 3 h [7.0% (26.3%) vs. 5.0% (29.9%)], and 4 h [3.0% (10.3%) vs. 2.0% (9.9%)]; P > 0.05. In addition, both radiotracers correlated well (Kendall's Tau (τ) coefficient = 0.498, P < 0.001) and presented with a good agreement at the 4th-hour time frame based on the Bland-Altman plot analysis.

Conclusions: Tc-SP is a valid radiotracer alternative to Tc-SC for routine GES examination. The normative values for both radiotracers have also been determined for the healthy multi-ethnic Asian population.

Trial Registration: This trial was registered retrospectively in the Thai Clinical Trials Registry on May 23rd, 2020 (Identifier: TCTR20200526004; http://www.clinicaltrials.in.th/index.php?tp=regtrials&menu=trialsearch&smenu=fulltext&task=search&task2=view1&id=6296 ).
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http://dx.doi.org/10.1186/s12876-020-01426-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7457507PMC
August 2020

A Case Rarity: Papillary Thyroid Carcinoma with Squamous Metaplasia Complicated with Chronic Discharging Ulcers.

Indian J Surg Oncol 2019 Dec 2;10(4):676-678. Epub 2019 Sep 2.

2Hospital Universiti Sains Malaysia (Hosp USM), 16150 Kubang Kerian, Kelantan Malaysia.

We report a unique case of differentiated thyroid carcinoma (DTC) with squamous metaplasia complicated with chronic discharging ulcer. A 76-year-old gentleman was referred to us after defaulted treatment 1 year post-total thyroidectomy. He presented to us with long-standing chronic, non-healing, ulcerative and discharging wound at the anterior neck at previous total thyroidectomy scar. The primary tumour was histologically diagnosed as papillary malignant cells with extensive squamous metaplasia. Squamous metaplasia is a rare finding in thyroid carcinoma that carried a poorer prognostic factor.
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http://dx.doi.org/10.1007/s13193-019-00977-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6895325PMC
December 2019