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Fulltext Preliminary report on somatostatin receptor imaging in rare endocrine tumours

Abdullah BJJ, Paramsothy M, Khir ASM, Chan SP

Med J Malaysia, 2000 Jun;55(2):169-73.
PMID: 19839144

Our preliminary experience of Somatostatin Receptor Positive Tumour Scintigraphy (SRPTS) in the management of some rare neuroendocrine tumours is highlighted. Six patients were evaluated using SRPTS. A single patient each with Zollinger-Ellison syndrome, recurrent medullary carcinoma of thyroid and Stage IV neuroblastoma. Two patients with phaeochromocytoma, and one patient with suspected insulinoma were evaluated. SRPTS was useful in three of the six patients studied i.e. patient with gastrinoma, recurrent medullary carcinoma of thyroid and metastatic neuroblastoma. SRPTS although expensive is a useful and cost-effective approach of rare endocrine tumours and it role as a first line tool in the diagnosis is discussed.

Matched MeSH terms: Thyroid Neoplasms
Fulltext Follicular thyroid carcinoma in a patient with myasthenia gravis and thymoma: a rare association

Ni H, Htet A

Ecancermedicalscience, 2012;6:274.
PMID: 23074376 DOI: 10.3332/ecancer.2012.274

Myasthenia gravis (MG) is an autoantibody-mediated disorder affecting the neuromuscular junction causing characteristic fatigable muscle weakness. Though it can be associated with tumours of the thymus as well as thyroid disorders, it is rare for both to coexist. The exact prevalence of thyroid carcinoma in MG with thymoma is not known but only about a dozen cases have been reported in the literature. We report a case of a 38-year-old Myanmar lady who presented with weakness and breathlessness due to MG with neck swelling. On examination, she had fatigable proximal muscle weakness and thyroid enlargement with no obvious features of hyperthyroidism. Mediastinal widening and an enlarged thyroid gland were noted on her chest X-ray and chest CT. A subtotal thyroidectomy and thymectomy were done. The histology showed follicular carcinoma of the thyroid and benign thymoma. The majority of the reported cases of thyroid carcinoma in association with MG were papillary carcinoma. Follicular carcinoma thyroid associated with MG has not yet been reported in the literature.

Matched MeSH terms: Thyroid Neoplasms
The findings of 18F-fluorodeoxyglucose positron emission tomography-computed tomography scan in patients with hidradenitis suppurativa in Malaysia: A multicenter study

Loo CH, Khoo ACH, Tan WC, Khor YH, Tang JJ, Tang MM, et al.

World J Nucl Med, 2020 08 22;20(1):32-37.
PMID: 33850487 DOI: 10.4103/wjnm.WJNM_33_20

Hidradenitis suppurativa (HS) is known to have association with systemic diseases with chronic inflammation such as psoriasis. We aim to describe the concomitant systemic inflammation in patients with HS using 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET/CT) scan. This was a case-control study conducted in three tertiary hospitals in Northern Malaysia from January to December 2017, involving HS patients aged 18 years and above. Thirty-two HS patients with age- and sex-matched controls were recruited with a mean age of 31.4 years (range: 18-56). Numerous cutaneous inflammatory foci were detected on FDG-PET/CT scan in clinically unapparent sites (27/32, 84.4%). Approximately 90.6%, 93.8%, and 50.0% of the patients had significantly higher cutaneous uptake over nasal, mandibular, and scalp regions, respectively (P < 0.0001). PET/CT scan did not detect any systemic inflammation unlike those found in psoriasis. Three (9.4%) patients had thyroid nodules with high uptake (maximum standard uptake values ranging from 2.9 to 11.3). Two of them were confirmed to have papillary thyroid carcinoma, while the third patient has inconclusive finding. 18F-FDG PET/CT scan may be useful to map disease burden of HS. Nonlesional inflammatory foci on the skin of the nose, mandibular, and scalp are probably significant. The association of thyroid carcinoma in HS warrants further evaluation.

Matched MeSH terms: Thyroid Neoplasms
Metastatic leiomyosarcoma of the thyroid: A rare entity

Che Jalil NA, Rama Chandran P, Samsudin AHZ, Yahya MM, Wan Abdul Rahman WF

Malays J Pathol, 2021 Apr;43(1):69-73.
PMID: 33903308

Cancer metastasis to the thyroid gland from non-thyroid sites is a rare presentation in clinical practice. The most frequent primary cancers that metastasise to the thyroid are renal cell carcinoma, followed by colorectal, lung and breast. We report a case of a 64-year-old Malay lady who presented with anterior neck swelling 4 years after an initial diagnosis of uterine leiomyosarcoma. She had undergone a hysterectomy procedure four years ago. Fine needle aspiration cytology of the thyroid mass suggested undifferentiated thyroid carcinoma. After multi-disciplinary discussion, the patient underwent thyroidectomy and the final histopathological diagnosis was metastatic leiomyosarcoma of the thyroid. The diagnosis was aided by an immunohistochemistry panel of positive myogenic markers, negative epithelial markers as well as the previous medical history of uterine leiomyosarcoma. Metastatic leiomyosarcoma of the thyroid may mimic primary undifferentiated (anaplastic) thyroid carcinoma (UTC) with a sarcomatoid pattern, medullary thyroid carcinoma (MTC) with spindle cells morphology and spindle cell tumour with thymus-like differentiation (SETTLE). Hence, a multidisciplinary approach must be practised by pathologists, surgeons and radiologists to consider metastatic lesions of the thyroid gland, especially when a previous history of cancer exists or is suspected.

Matched MeSH terms: Thyroid Neoplasms
Fulltext Integrated Characterization of MicroRNA and mRNA Transcriptome in Papillary Thyroid Carcinoma

Mohamad Yusof A, Jamal R, Muhammad R, Abdullah Suhaimi SN, Mohamed Rose I, Saidin S, et al.

Front Endocrinol (Lausanne), 2018;9:158.
PMID: 29713312 DOI: 10.3389/fendo.2018.00158

The incidence rate of papillary thyroid carcinoma (PTC) has rapidly increased in the recent decades, and the microRNA (miRNA) is one of the potential biomarkers in this cancer. Despite good prognosis, certain features such as lymph node metastasis (LNM) and BRAF V600E mutation are associated with a poor outcome. More than 50% of PTC patients present with LNM and BRAF V600E is the most common mutation identified in this cancer. The molecular mechanisms underlying these features are yet to be elucidated. This study aims to elucidate miRNA-genes interaction networks in PTC with or without LNM and to determine the association of BRAF V600E mutation with miRNAs and genes expression profiles. Next generation sequencing was performed to characterize miRNA and gene expression profiles in 20 fresh frozen tumor and the normal adjacent tissues of PTC with LNM positive (PTC LNM-P) and PTC without LNM (PTC LNN). BRAF V600E was genotyped using Sanger sequencing. Bioinformatics integration and pathway analysis were performed to determine the regulatory networks involved. Based on network analysis, we then investigated the association between miRNA and gene biomarkers, and pathway enrichment analysis was performed to study the role of candidate biomarkers. We identified 138 and 43 significantly deregulated miRNAs (adjusted p value thyroid cancer. These findings may lead to better understanding of carcinogenesis and metastasis processes. This study also complements the existing knowledge about deregulated miRNAs in papillary thyroid carcinoma development.

Matched MeSH terms: Thyroid Neoplasms
Fulltext Successful Primary Medical Therapy with Somatostatin Receptor Ligand in Acromegaly with Thyroid Cancer

Dharan SS, Kamaruddin NA

J ASEAN Fed Endocr Soc, 2017;32(2):169-172.
PMID: 33442102 DOI: 10.15605/jafes.032.02.12

Acromegaly is a rare disease with an annual incidence of 3 to 4 cases in a million.1 Diagnosis is often delayed due to the slow progression of the disease. Persistent elevation of growth hormone (GH) in acromegaly causes a reduction in life expectancy by 10 years. Aside from multiple cardiovascular, respiratory and metabolic co-morbidities, it has also been proven to cause an increased incidence of cancer. The main treatment of acromegaly is surgical excision of the functioning pituitary adenoma. Multiple comorbidities, including obstructive sleep apnea (OSA), left ventricular hypertrophy (LVH) and soft tissue swelling, make surgery complicated, if not impossible. Medical therapy to reduce comorbidities may be indicated in certain situations. Somatostatin receptor ligands (SRL) are able to reduce, and possibly normalize, IGF-1 levels.2 Reduction of insulin-like growth factor-1 (IGF-1), the main mediator of GH, is able to resolve headache, sweating, fatigue and soft tissue swelling, and also reduce ventricular hypertrophy. This case report illustrates the successful use of the SRL octreotide LAR in treating acromegaly. It also confirms the observation from several case series that thyroid cancer is the most common malignancy in acromegaly.

Matched MeSH terms: Thyroid Neoplasms
Clinical determinants of fluorodeoxyglucose positron emission tomography/computed tomography in differentiated thyroid cancer patients with elevated thyroglobulin and negative (131)iodine whole body scans after (131)iodine therapy

Shamim SE, Nang LB, Shuaib IL, Muhamad NA

Malays J Med Sci, 2014 May;21(3):38-46.
PMID: 25246834

A cross-sectional prospective study has been conducted on differentiated thyroid cancer (DTC) patients using negative (131)Iodine ((131)I) whole body scans and elevated thyroglobulin (Tg) levels. The main objective of this research was to determine the prevalence of the conversion of differentiated to dedifferentiated thyroid cancer patients during follow up at the Hospital Kuala Lumpur. It has been demonstrated that fluorodeoxyglucose (FDG) uptake is inversely proportional to the iodine concentration and to differentiation of the cells.

Matched MeSH terms: Thyroid Neoplasms
A reappraisal of thyroid surgery under local anaesthesia: back to the future?

Hisham AN, Aina EN

ANZ J Surg, 2002 Apr;72(4):287-9.
PMID: 11982518 DOI: 10.1046/j.1445-2197.2002.02372.x

BACKGROUND: Thyroid surgery is usually performed under general anaesthesia. However, for a selected group of patients, local anaesthesia may be preferable. The aim of this study was to review the authors' experiences with local anaesthesia with regard to the safety and outcome of this approach.
METHODS: A total of 65 consecutive patients who underwent primary thyroid surgery were accrued prospectively into this study from May to December 1999. A field block with 0.5% bupivacaine and adrenaline in 1:200 000 dilutions was given in all cases. In addition, light sedative and narcotics were given as necessary to achieve patient comfort and cooperation. The pain experienced during surgery was recorded using a visual analogue scoring system on a scale of 1-10.
RESULTS: Unilateral thyroid resection was performed in 58 patients, isthmectomy in four patients and bilateral thyroid resection in three patients, two of which were in their second trimester of pregnancy diagnosed with papillary thyroid cancer. There were 55 women and 10 men with an average age of 38.2 years (range: 18-67 years). No conversion to general anaesthetic was needed, and the mean operating time was 80 min. The postoperative recovery was quick with this technique and, of interest, 22 (33.9%) patients were discharged within 6 h following the surgery. Overall 62 (95.4%) patients were discharged in the first 24 h and three (4.6%) patients after 24 h. There were no significant postoperative complications encountered except for wound infection in two (3.1%) patients.
CONCLUSIONS: Thyroid surgery under local anaesthesia can be performed safely in a selected group of patients. It offers an effective alternative approach to general anaesthesia and is associated with low morbidity and high levels of patient satisfaction.

Matched MeSH terms: Thyroid Neoplasms/surgery
Intratumour amyloidosis in Malaysians: an immunohistochemical study

Looi LM

Ann Acad Med Singap, 1986 Jan;15(1):52-6.
PMID: 3010797

Congo red screening of tumour material examined at the Department of Pathology, University of Malaya revealed intratumour deposits of amyloid in 12% of nasopharyngeal carcinomas, 66% of basal cell carcinomas, 100% of medullary carcinomas of the thyroid, 56% of islet cell tumours of the pancreas, 1 out of 16 carcinoids and 1 out of 100 thyroid adenomas. All the deposits were permanganate resistant and did not contain AA protein, indicating that what was encountered was not secondary amyloid. The deposits showed variable staining for immunoglobulin light chains and amyloid P component with a standard peroxidase antiperoxidase method. The possibility that intratumour amyloid has a neoplastic origin is discussed.

Matched MeSH terms: Thyroid Neoplasms/pathology
Fusion of spatial gray level dependency and fractal texture features for the characterization of thyroid lesions

Raghavendra U, Rajendra Acharya U, Gudigar A, Hong Tan J, Fujita H, Hagiwara Y, et al.

Ultrasonics, 2017 05;77:110-120.
PMID: 28219805 DOI: 10.1016/j.ultras.2017.02.003

Thyroid is a small gland situated at the anterior side of the neck and one of the largest glands of the endocrine system. The abrupt cell growth or malignancy in the thyroid gland may cause thyroid cancer. Ultrasound images distinctly represent benign and malignant lesions, but accuracy may be poor due to subjective interpretation. Computer Aided Diagnosis (CAD) can minimize the errors created due to subjective interpretation and assists to make fast accurate diagnosis. In this work, fusion of Spatial Gray Level Dependence Features (SGLDF) and fractal textures are used to decipher the intrinsic structure of benign and malignant thyroid lesions. These features are subjected to graph based Marginal Fisher Analysis (MFA) to reduce the number of features. The reduced features are subjected to various ranking methods and classifiers. We have achieved an average accuracy, sensitivity and specificity of 97.52%, 90.32% and 98.57% respectively using Support Vector Machine (SVM) classifier. The achieved maximum Area Under Curve (AUC) is 0.9445. Finally, Thyroid Clinical Risk Index (TCRI) a single number is developed using two MFA features to discriminate the two classes. This prototype system is ready to be tested with huge diverse database.

Matched MeSH terms: Thyroid Neoplasms/pathology*
Fulltext Occupational exposure and radiobiological risk from thyroid radioiodine therapy in Saudi Arabia

Al-Mohammed HI, Sulieman A, Mayhoub FH, Salah H, Lagarde C, Alkhorayef M, et al.

Sci Rep, 2021 Jul 15;11(1):14557.
PMID: 34267237 DOI: 10.1038/s41598-021-93342-1

Worldwide, thyroid cancer accounts for some 10% of total cancer incidence, most markedly for females. Thyroid cancer radiotherapy, typically using 131I (T1/2 8.02 days; β- max energy 606 keV, branching ratio 89.9%), is widely adopted as an adjunct to surgery or to treat inoperable cancer and hyperthyroidism. With staff potentially receiving significant doses during source preparation and administration, radiation protection and safety assessment are required in ensuring practice complies with international guidelines. The present study, concerning a total of 206 patient radioiodine therapies carried out at King Faisal Specialist Hospital and Research Center over a 6-month period, seeks to evaluate patient and occupational exposures during hospitalization, measuring ambient doses and estimating radiation risk. Using calibrated survey meters, patient exposure dose-rate estimates were obtained at a distance of 30-, 100- and 300 cm from the neck region of each patient. Occupational and ambient doses were measured using calibrated thermoluminescent dosimeters. The mean and range of administered activity (AA, in MBq) for the thyroid cancer and hyperthyroidism treatment groups were 4244 ± 2021 (1669-8066), 1507.9 ± 324.1 (977.9-1836.9), respectively. The mean annual occupational doses were 1.2 mSv, that for ambient doses outside of the isolation room corridors were found to be 0.2 mSv, while ambient doses at the nursing station were below the lower limit of detection. Exposures to staff from patients being treated for thyroid cancer were less compared to hyperthyroidism patients. With a well-defined protocol, also complying with international safety requirements, occupational exposures were found to be relatively high, greater than most reported in previous studies.

Matched MeSH terms: Thyroid Neoplasms/radiotherapy*
Fulltext Clinical use of PET/CT in thyroid cancer diagnosis and management

Sundram F

Biomed Imaging Interv J, 2006 Oct;2(4):e56.
PMID: 21614336 MyJurnal DOI: 10.2349/biij.2.4.e56

The incidence of thyroid cancer is low, but when it occurs, it is mainly of the papillary histopathological type. Although PET/CT has a limited role in the diagnosis, it plays a significant role in the overall post-surgery management of a patient with thyroid cancer. This follow-up role is important, especially in patients with elevated serum thyroglobulin, but negative radioiodine whole body scans. There is increasing evidence that PET/CT should be a part of routine care in the Tg positive Radioiodine scan negative patient.

Matched MeSH terms: Thyroid Neoplasms
Fulltext The use of SPECT-CT improves accuracy of post-radioiodine therapy imaging and changes the management strategy in a case of advanced follicular thyroid carcinoma

Wong TH, Amir Hassan SZ

Med J Malaysia, 2015 Dec;70(6):356-7.
PMID: 26988209

This is a case of follicular thyroid carcinoma with extensive lung, bone and brain metastases. Multi-modality treatments including total thyroidectomy, modified radical neck dissection, cranial radiotherapy and Iodine-131 (RAI) therapy were instituted. Post RAI therapy planar whole body scan showed RAI avid metastases in the skull, cervical spine, bilateral lungs and abdomen. With the use of SPECTCT imaging, rare adrenal metastasis and additional rib metastasis were identified. Besides, management strategy was altered due to detection of non-RAI avid brain and lung metastatic lesions.

Matched MeSH terms: Thyroid Neoplasms
Fulltext Surgical Management of Bulky Mediastinal Metastases in Follicular Thyroid Carcinoma

Adwin Z, Nur A, Suhaimi S, Rahman R

Oman Med J, 2016 Jan;31(1):69-72.
PMID: 26816570 DOI: 10.5001/omj.2016.13

Follicular thyroid adenoma and carcinoma are very common. Benign and malignant lesions are usually indistinguishable from cytology alone and often require confirmatory resection. The spread of follicular carcinoma is usually hematogenous and is treated with surgery and adjuvant radioactive iodine. Very rarely, metastases occur in the mediastinum. Patients usually present with severe compressive symptoms. With proper treatment and follow-up, the prognosis for these type of thyroid malignancies is excellent. In the case presented here, our patient presented to the Universiti Kebangsaan Malaysia Medical Center with a progressively enlarging anterior neck swelling. The swelling had started 10 years before his presentation. We diagnosed him with an advanced thyroid malignancy with bulky mediastinal metastases. After extensive investigations and counseling, we chose to treat the patient with tumor excision and mediastinal metastases resection. Typically, mediastinal resection involves the removal of the sternum and use of an acrylic implant to recreate the sternum. In this case, the sternum and ribs were removed with subsequent myocutaneous flap coverage for the wound defect. Our experience represents an alternative treatment option in cases where implant use is unsuitable.

Matched MeSH terms: Thyroid Neoplasms
Selective Laryngeal Examination: Sensitivity of Endocrine Surgeons in Screening Voice Abnormality

Al-Yahya SN, Muhammad R, Suhaimi SNA, Azman M, Mohamed AS, Baki MM

J Voice, 2020 Sep;34(5):811.e13-811.e20.
PMID: 30612893 DOI: 10.1016/j.jvoice.2018.12.003

OBJECTIVES: Selective laryngeal examination for patients undergoing thyroidectomy is recommended for patients with voice alterations, history of prior cervical or chest surgery, and patients with proven or suspected thyroid malignancy. The study objective is to measure the sensitivity of surgeons in detecting voice abnormalities in patients undergoing thyroidectomy, parathyroidectomy complicated with laryngeal nerve paralysis, or patients with known vocal cords palsy (VCP) due to other neck surgeries.
DESIGN AND SETTING: Descriptive cross-sectional study in a tertiary center.
PARTICIPANTS AND METHODS: The subjects are 274 audio files of voices of patients undergoing thyroid, parathyroid surgeries, and known VCP due to other neck surgeries. Voice assessments were done by three endocrine surgeons (A, B, and C) with 20, 12, and 4 years of surgical experience.
MAIN OUTCOME MEASURES: Sensitivity and specificity of surgeon documented voice assessment in patients with underlying VCP. Subjects' acoustic analysis and Voice Handicap Index (VHI-10) were analyzed.
RESULTS: Raters A, B, and C have sensitivity of 63.6%, 78.8%, and 66.7%, respectively. Inter-rater reliability shows substantial agreement (ƙ = 0.67). VHI-10 has sensitivity of 75.8% and strong correlation of 0.707 (p value <0.001) to VCP. Subjects with VCP have notably higher jitter, shimmer, and noise-to-harmonic ratio compared to normal subjects with sensitivity of 74.2%, 71.2%, and 72.7%, respectively.
CONCLUSIONS: The results for surgeons documented voice assessment did not reach the desired sensitivity for a screening tool for patients with underlying VCP. Other tools such as VHI-10 and acoustic analysis may not be used as standalone tools in screening patients with underlying VCP. Routine preoperative laryngeal examination may be recommended for all patients undergoing thyroid, parathyroid, or other surgeries that places the laryngeal nerves at risk.

Matched MeSH terms: Thyroid Neoplasms
Fulltext The 'CASTLE' tumour: An extremely rare presentation of a thyroid malignancy. A case report

Dualim DM, Loo GH, Suhaimi SNA, Md Latar NH, Muhammad R, Abd Shukor N

Ann Med Surg (Lond), 2019 Aug;44:57-61.
PMID: 31312445 DOI: 10.1016/j.amsu.2019.06.013

Thyroid carcinoma showing thymic-like differentiation (CASTLE) is a rare malignancy of the thyroid gland, and it accounts for 0.1-0.15% of all thyroid cancers. As the name suggests, it has a histological and immunophenotypic resemblance to thymic carcinoma. Preoperative diagnosis of CASTLE can be difficult as its clinical manifestations, and histological characteristic resembles other aggressive and advanced thyroid carcinomas. It is essential to distinguish CASTLE from other aggressive neoplasms as the former has a more favourable prognosis. Immunohistochemical staining with CD5 can help to differentiate thyroid CASTLE from other aggressive thyroid neoplasms. Due to the rarity of this disease, there is no clear definitive treatment strategy. Surgical resection of CASTLE is usually attempted initially. Nodal involvement and extrathyroidal extension are shown to be the main prognostic factors that influenced the survival of patients. Therefore, complete resection of the tumour is vital to reduce local recurrence rates and to improve the chance of long-term survival. Radiotherapy (RT) for CASTLE is an effective treatment. Curative surgery followed by adjuvant RT should be considered in cases with extrathyroidal extension and nodal metastases. With RT, shrinkage of the tumour and reduction of local recurrence rate is possible. With that in mind, we present a case of CASTLE who presented with airway compression symptoms three years after thyroid surgery. He subsequently underwent tumour debulking surgery and a tracheostomy. The patient refused adjuvant chemoradiotherapy, and during our serial follow-up, he is well and symptom-free.

Matched MeSH terms: Thyroid Neoplasms
A rare case of minimally invasive follicular thyroid cancer with intraluminal superior vena cava and right atrium metastases

Khoo ACH, Chen SL

World J Nucl Med, 2019 9 14;18(3):301-303.
PMID: 31516376 DOI: 10.4103/wjnm.WJNM_43_18

Follicular thyroid cancers are known to spread hematogenously to the bones and lungs and rarely presenting with massive angioinvasion. We report a case of a middle-aged female who had undergone total thyroidectomy for minimally invasive follicular thyroid cancer with angioinvasion in 2014. She was noted to have a large tumor thrombus extending from the superior vena cava to the right atrium on whole body scan post-Iodine-131 (131I) remnant ablation therapy. We discuss the various imaging modalities, treatment options, and difficulties in managing such massive angioinvasion in patients with well-differentiated thyroid cancers.

Matched MeSH terms: Thyroid Neoplasms
Immunohistochemical localisation of RET and p53 mutant protein of thyroid lesions in a North-Eastern Malaysian population and its prognostic implications

Omar E, Madhavan M, Othman NH

Pathology, 2004 Apr;36(2):152-9.
PMID: 15203751

To investigate RET and p53 expression in local thyroid lesions, in order to shed light on the pathogenesis of papillary carcinoma and explain the high prevalence of this condition among the nodular hyperplasia (multi-nodular goitre) cases.

Matched MeSH terms: Thyroid Neoplasms/metabolism*; Thyroid Neoplasms/epidemiology; Thyroid Neoplasms/pathology
Salmonella thyroid abscess-two case reports

Khoo KS, Koh PS, Ng KL

Gland Surg, 2020 Dec;9(6):2198-2203.
PMID: 33447571 DOI: 10.21037/gs-20-474

Acute suppurative thyroiditis account for <1% of thyroid diseases and is uncommon because of the gland's encapsulation, iodine-rich environment, good vascular supply and extensive lymphatic drainage. It has been reported in patients with underlying goiters, thyroid cancers and in immuno-compromised patients. The usual causative organisms are Staphylococci spp. and Streptococci spp. Rarer organisms include Klebsiella spp. and Salmonella spp. Due to its rarity (as there have been only 28 cases of Salmonella thyroid abscess being reported in the literature till 2020), only case reports are available to guide management. We report two cases of thyroid abscess due to Salmonella enteritidis in our institution that may herald the re-emergence of this uncommon infection of the thyroid gland and to raise awareness for all clinicians. Both patients presented with neck swelling, dysphagia and sepsis. Surgical intervention was warranted in both patients due to the severity of the disease and failed medical therapy. Recovery was uneventful following adequate surgical intervention and antibiotic therapy according to the culture and sensitivity report of the pathogen. This case report highlights that both patients were immunocompromised, and they contracted Salmonella thyroid abscess without any gastrointestinal involvement. Thus, a high index of suspicion for Salmonella thyroid abscess in immunocompromised patients can expedite the diagnosis and appropriate management can be commenced such as antibiotic therapy, percutaneous aspiration and surgical drainage in the event of failed medical therapy.

Matched MeSH terms: Thyroid Neoplasms
PRACTICAL BARRIERS TO IMPLEMENTATION OF THYROID CANCER GUIDELINES IN THE ASIA-PACIFIC REGION

Yang SP, Ying LS, Saw S, Tuttle RM, Venkataraman K, Su-Ynn C

Endocr Pract, 2015 Nov;21(11):1255-68.
PMID: 26247114 DOI: 10.4158/EP15850.OR

OBJECTIVE: Numerous published guidelines have described the optimal management of thyroid cancer. However, these rely on the clinical availability of diagnostic and therapeutic modalities. We hypothesized that the availability of medical resources and economic circumstances vary in Asia-Pacific countries, making it difficult to implement guideline recommendations into clinical practice.
METHODS: We surveyed participants at the 2009 and 2013 Congresses of the Association of Southeast Asian Nations Federation of Endocrine Societies by distributing questionnaires to attendees at registration.
RESULTS: Responses were obtained from 268 respondents in 2009 and 163 respondents in 2013. Similar to the high prevalence of low-risk thyroid cancer observed in the Surveillance, Epidemiology, and End Results database, across the Asia-Pacific countries surveyed in 2009 and 2013, 50 to 100% of the respondents from the Philippines, Malaysia, Singapore, China, Taiwan, Thailand, Hong Kong, Korea, and Sri Lanka reported that more than 50% of the patients had low-risk thyroid cancer on follow-up. Importantly, there was much variation with regards to the perceived availability of investigation and treatment modalities.
CONCLUSION: We found a wide variation in clinicians' perception of availability of diagnostic and therapeutic modalities in the face of a rise in thyroid cancer incidence and thyroid cancer management guidelines that emphasized their importance. The lack of availability of management tools and treatments will prove to be a major barrier to the implementation of thyroid cancer management guidelines in Southeast Asia, and likely in other parts of the world as well.

Matched MeSH terms: Thyroid Neoplasms/diagnosis*; Thyroid Neoplasms/epidemiology; Thyroid Neoplasms/therapy*

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