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Thyroid Research

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https://www.readbyqxmd.com/read/30349584/correlation-between-anti-thyroid-peroxidase-antibody-levels-and-diffuse-thyroid-uptake-of-18-f-fluorodeoxyglucose-in-hashimoto-s-thyroiditis-a-retrospective-study
#1
Naoki Edo, Koji Morita, Miki Sakamoto, Tatsuro Kaminaga, Hiromi Edo, Erina Okamura, Masumi Ogawa, Kazuhisa Tsukamoto, Hiroko Okinaga, Toshio Ishikawa
Background: On 18 F-fluorodeoxyglucose (FDG)-positron emission tomography (PET), diffuse uptake in the thyroid gland is often observed in patients with Hashimoto's thyroiditis. In this study, we evaluated the factors associated with diffuse uptake by comparing Hashimoto's thyroiditis patients with or without diffuse uptake in the thyroid. Methods: A retrospective study was conducted of 18 patients with Hashimoto's thyroiditis who underwent blood tests, thyroid ultrasonography, and FDG-PET during the period from 2014 to 2015...
2018: Thyroid Research
https://www.readbyqxmd.com/read/30337961/synergistic-inhibition-of-mek-erk-and-braf-v600e-with-pd98059-and-plx4032-induces-sodium-iodide-symporter-nis-expression-and-radioiodine-uptake-in-braf-mutated-papillary-thyroid-cancer-cells
#2
Honglai Zhang, Dong Chen
Background and Aims: The activating mutation BRAFV600E is a frequent genetic event in papillary thyroid carcinomas (PTC). Mutation BRAFV600E is associated with the loss of a sodium/iodine symporter (NIS), and subsequent radioiodide-refractory (RAI) metastatic disease. Use of BRAF V600E inhibitors could partly restore NIS expression and Iodide uptake by inhibition of mitogen-activated protein kinase (MAPK) pathway. Previous study has reported that the BRAF V600E inhibitors could re-activate MAPK signals...
2018: Thyroid Research
https://www.readbyqxmd.com/read/30116304/hyperthyroidism-in-a-complete-molar-pregnancy-with-a-mature-cystic-ovarian-teratoma
#3
Bryce C Simes, Alozie A Mbanaso, Carlos A Zapata, Chukwuma M Okoroji
Background: The hallmark of gestational trophoblastic disease is the production of human chorionic gonadotropin (hCG) due to the hyperproliferation of extraembryonic trophoblast cells. Previous studies show hCG has thyrotropic action due to its structural similarity with thyroid stimulating hormone (TSH) molecules. Germ cell tumors represent 15-20% of all ovarian tumors and can be malignant or benign. Case presentation: We present a case of a 53-year old African American female with a history of hyperthyroidism secondary to a complete hydatidiform mole and an associated finding of a mature cystic ovarian teratoma...
2018: Thyroid Research
https://www.readbyqxmd.com/read/30083234/a-rare-malignant-thyroid-carcinosarcoma-with-aggressive-behavior-and-dicer1-gene-mutation-a-case-report-with-literature-review
#4
Jing Yang, Carmen Sarita-Reyes, David Kindelberger, Qing Zhao
Background: Malignant biphasic tumor also known as carcinosarcoma is an uncommon neoplasm that is composed of both malignant epithelial and mesenchymal components. Most reported cases of carcinosarcoma affect the female genital tract; however, other sites including head and neck, lung, and breast have been described. Carcinosarcoma of the thyroid is an extremely rare and aggressive malignancy with an ominous clinical course similar to anaplastic carcinoma. Case presentation: We report a case of a 45-year-old female who was found to have a biphasic thyroid carcinosarcoma...
2018: Thyroid Research
https://www.readbyqxmd.com/read/30061934/the-largest-reported-papillary-thyroid-carcinoma-arising-in-struma-ovarii-and-metastasis-to-opposite-ovary-case-report-and-review-of-literature
#5
Mohamed S Al Hassan, Tamer Saafan, Walid El Ansari, Afaf A Al Ansari, Mahmoud A Zirie, Hanan Farghaly, Abdelrahman Abdelaal
Background: Malignant struma ovarii (MSO) is a very rare, germ cell tumor of the ovary, histologically identical to differentiated thyroid cancers. Struma ovarii (SO) is difficult to diagnose on clinical basis or imaging and is mostly discovered incidentally, with few published cases in the literature. Case presentation: A 42-year old primiparous woman presented with abdominal pain and midline pelvic palpable firm mass arising from the pelvis. Imaging showed pelvic solid cystic mass...
2018: Thyroid Research
https://www.readbyqxmd.com/read/30002731/effect-of-perchlorate-and-thiocyanate-exposure-on-thyroid-function-of-pregnant-women-from-south-west-england-a-cohort-study
#6
Bridget A Knight, Beverley M Shields, Xuemei He, Elizabeth N Pearce, Lewis E Braverman, Rachel Sturley, Bijay Vaidya
Background: Iodine is important for thyroid hormone synthesis, and iodine deficiency in pregnancy may impair fetal neurological development. As perchlorate and thiocyanate inhibit sodium-iodide symporter reducing the transport of iodine from circulation into the thyroid follicular cells, environmental exposure to these substances in pregnancy may impair maternal thyroid hormone synthesis. We aimed to explore the impact of perchlorate and thiocyanate exposure on thyroid status in a cohort of pregnant mothers from South West England...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29942352/the-upper-limit-for-tsh-during-pregnancy-why-we-should-stop-using-fixed-limits-of-2-5-or-3-0-mu-l
#7
EDITORIAL
Tim I M Korevaar
Physiological changes necessitate the use of pregnancy-specific reference ranges for TSH and FT4 to diagnose thyroid dysfunction during pregnancy. Although many centers use fixed upper limits for TSH of 2.5 or 3.0 mU/L, this comment describeds new data which indicate that such cut-offs are too low and may lead to overdiagnosis or even overtreatment. The new guidelines of the American Thyroid Association have considerably changed recommendations regarding thyroid function reference ranges in pregnancy accordingly...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29875824/characteristics-and-natural-course-of-hypoechoic-thyroid-lesions-diagnosed-as-possible-thyroid-lymphomas-by-fine-needle-aspiration-cytology
#8
Tomoe Nakao, Mitsushige Nishikawa, Mako Hisakado, Toshihiko Kasahara, Takumi Kudo, Eijun Nishihara, Mitsuru Ito, Shuji Fukata, Hirotoshi Nakamura, Mitsuyoshi Hirokawa, Akira Miyauchi
Background: There is little information regarding the natural course of hypoechoic thyroid lesions that are probable or possible thyroid lymphoma based on fine needle aspiration cytology (FNAC) results. Methods: Sixty-five patients who were diagnosed as probable or possible thyroid lymphoma by ultrasonography (US) and FNAC were investigated. Forty-three patients with strong suspicion underwent thyroid surgery for the diagnosis at our hospital, and 22 patients were followed up with periodic US examination...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29875823/-does-levothyroxine-improve-pregnancy-outcomes-in-euthyroid-women-with-thyroid-autoimmunity-undergoing-assisted-reproductive-technology
#9
EDITORIAL
Kris Poppe, Flora Veltri, Candice Autin
Evidence on the treatment of euthyroid infertile women and thyroid autoimmunity with thyroid hormone is scare, and therefore the recent study by Wang et al. is a welcome addition to it. Based on their results, thyroid hormone seems not to be indicated to decrease the miscarriage rate in that particular group of infertile women. This comment is meant to put the study results into perspective with the available evidence and the current guidelines, and to highlight its strengths and weaknesses.
2018: Thyroid Research
https://www.readbyqxmd.com/read/29849767/thyroid-hormones-increase-stomach-goblet-cell-numbers-and-mucin-expression-during-indomethacin-induced-ulcer-healing-in-wistar-rats
#10
Jackline Namulema, Miriam Nansunga, Charles Drago Kato, Muhammudu Kalange, Samuel Babafemi Olaleye
Background: Gastric ulcers are mucosal discontinuities that may extend into the mucosa, submucosa or even deeper. They result from an imbalance between mucosal aggressors and protective mechanisms that include the mucus bicarbonate layer. Thyroid hormones have been shown to accelerate gastric ulcer healing in part by increasing the adherent mucus levels. However, the effects of thyroid hormones on goblet cell numbers and expression of neutral and acidic mucins during ulcer healing have not been investigated...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29785209/acute-suppurative-thyroiditis-caused-by-thyroid-papillary-carcinoma-in-the-right-thyroid-lobe-of-a-healthy-woman
#11
Hazuki Otani, Masakazu Notsu, Sayo Koike, Miwa Morita, Masahiro Yamamoto, Mika Yamauchi, Takahumi Fuchiwaki, Ichiro Morikura, Noriaki Aoi, Hideyuki Kawauchi, Teruaki Iwabashi, Asuka Araki, Noriyoshi Ishikawa, Riruke Maruyama, Toshitsugu Sugimoto
Background: The thyroid gland is resistant to microbial infection, because of its organ characteristics such as encapsulation, iodine content, and rich blood supply. Therefore, acute suppurative thyroiditis (AST), as a bacterial infection of the thyroid gland, is rarely seen. AST typically takes places on the left side the neck region in children, because of the coincidence of the left piriform sinus fistula, as a most common route of infection. AST is also usually seen in immunocompromised hosts...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29760786/ultrasound-criteria-for-risk-stratification-of-thyroid-nodules-in-the-previously-iodine-deficient-area-of-austria-a-single-centre-retrospective-analysis
#12
Christina Tugendsam, Veronika Petz, Wolfgang Buchinger, Brigitta Schmoll-Hauer, Iris Pia Schenk, Karin Rudolph, Michael Krebs, Georg Zettinig
Background: We aimed to study the validity of six published ultrasound criteria for risk stratification of thyroid nodules in the former severely iodine deficient population of Austria. Methods: Retrospective, single centre, observer blinded study design. All patients with a history of thyroidectomy due to nodules seen in the centre between 2004 and 2014 with preoperative in-house sonography and documented postoperative histology were analyzed ( n  = 195). A board of five experienced thyroidologists evaluated the images of 45 papillary carcinomas, 8 follicular carcinomas, and 142 benign nodules regarding the following criteria: mild hypoechogenicity, marked hypoechogenicity, microlobulated or irregular margins, microcalcifications, taller than wide shape, missing thin halo...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29449887/role-of-the-t-and-b-lymphocytes-in-pathogenesis-of-autoimmune-thyroid-diseases
#13
Marta Rydzewska, Michał Jaromin, Izabela Elżbieta Pasierowska, Karlina Stożek, Artur Bossowski
Autoimmune thyroid disorders (AITD) broadly include Graves' disease and Hashimoto's thyroiditis which are the most common causes of thyroid gland dysfunctions. These disorders develop due to complex interactions between environmental and genetic factors and are characterized by reactivity to self-thyroid antigens due to autoreactive lymphocytes escaping tolerance. Both cell-mediated and humoral responses lead to tissue injury in autoimmune thyroid disease. The differentiation of CD4+ cells in the specific setting of immune mediators (for example cytokines, chemokines) results in differentiation of various T cell subsets...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29375671/management-of-hypothyroidism-with-combination-thyroxine-t4-and-triiodothyronine-t3-hormone-replacement-in-clinical-practice-a-review-of-suggested-guidance
#14
REVIEW
Colin Dayan, Vijay Panicker
Background: Whilst trials of combination levothyroxine/liothyronine therapy versus levothyroxine monotherapy for thyroid hormone replacement have not shown any superiority, there remains a small subset of patients who do not feel well on monotherapy. Whilst current guidelines do not suggest routine use of combination therapy they do acknowledge a trial in such patients may be appropriate. It appears that use of combination therapy and dessicated thyroid extract is not uncommon but often being used by non-specialists and not adequately monitored...
2018: Thyroid Research
https://www.readbyqxmd.com/read/29051792/papillary-thyroid-cancer-recurrence-43-years-following-total-thyroidectomy-and-radioactive-iodine-ablation-a-case-report
#15
Yaw Amoako-Tuffour, M Elise Graham, Martin Bullock, Matthew H Rigby, Jonathan Trites, S Mark Taylor, Robert D Hart
BACKGROUND: Recurrent papillary thyroid carcinoma (PTC) beyond the first two decades of definitive treatment (i.e. total thyroidectomy and radioactive iodine ablation) is a rare occurrence. CASE PRESENTATION: We present a case of a 71-year old Caucasian female with a distant history of PTC treated with total thyroidectomy and radioactive iodine ablation who experienced recurrence of her disease 43 years following initial diagnosis and definitive treatment. She presented with palpable left-sided neck mass and subsequently underwent a level II, III, neck dissection and adjuvant iodine ablation...
2017: Thyroid Research
https://www.readbyqxmd.com/read/29051791/hyalinizing-trabecular-tumor-of-the-thyroid-gland-and-its-significant-diagnostic-issue
#16
Dustin J Jones, Christopher R Kieliszak, Sanjay S Patel, Christopher R Selinsky
BACKGROUND: Hyalinizing trabecular tumors (HTT) are rare follicular cell-derived tumors of the thyroid gland that are infrequently reported in otolaryngology literature. We present here an interesting case of HTT which provides the basis for review of this entity's clinical characteristics, criteria useful in making the diagnosis, and any currently available therapeutic modalities. CASE PRESENTATION: A 70-year-old Caucasian female underwent a CT scan of her chest and was incidentally found to have a nodule within the right thyroid lobe...
2017: Thyroid Research
https://www.readbyqxmd.com/read/28932277/a-retrospective-review-of-the-multidisciplinary-management-of-medullary-thyroid-cancer-eligibility-for-systemic-therapy
#17
Georgia Geller, Janessa Laskin, Winson Y Cheung, Cheryl Ho
BACKGROUND: Medullary thyroid carcinoma (MTC) accounts for 1-2% of all thyroid cancers. The clinical course of metastatic disease can be indolent. Our aim was to characterize the natural history of disease to evaluate the true proportion of patients who would be eligible for the currently available systemic therapies. METHODS: The British Columbia Cancer Agency (BCCA) provides cancer care to a population of 4.6 million. A retrospective chart review was conducted of all patients with MTC referred to the BCCA from 1991 to 2013...
2017: Thyroid Research
https://www.readbyqxmd.com/read/28804518/comparative-frequency-of-four-different-types-of-pregnancy-associated-thyrotoxicosis-in-a-single-thyroid-centre
#18
Akane Ide, Nobuyuki Amino, Takumi Kudo, Waka Yoshioka, Mako Hisakado, Eijun Nishihara, Mitsuru Ito, Shuji Fukata, Hirotoshi Nakamura, Akira Miyauchi
BACKGROUND: Pregnancy and delivery markedly influence thyroid function. However, the comparative prevalence of gestational thyrotoxicosis (GT), new onset of Graves' disease during pregnancy (GD during pregnancy), postpartum destructive thyrotoxicosis (PPT), and postpartum Graves' thyrotoxicosis (PPGD) has not yet been determined. METHODS: We prospectively registered and performed a review of 4127 consecutive non treated female patients with thyrotoxicosis, seen between August 2008 and December 2013 in our outpatient clinic of Kuma Hospital...
2017: Thyroid Research
https://www.readbyqxmd.com/read/28572843/malignant-struma-ovarii-in-a-30-year-old-nulliparous-patient
#19
J Colin Boyd, Blair A Williams, Matthew H Rigby, Katharina Kieser, Saul Offman, Hemlata Shirsat, Jonathan R B Trites, S Mark Taylor, Robert D Hart
BACKGROUND: Struma ovarii is a rare monodermal germ cell tumor where the ovary is comprised of at least half thyroid tissue. This phenomenon may indicate an embryological origin. CASE PRESENTATION: A 30-year old nulliparous woman presented with acute right lower quadrant pain and underwent laparoscopic right salpingo-oophorectomy. The excised ovarian mass showed evidence of struma-derived papillary thyroid carcinoma. Ultrasound of the thyroid showed mild enlargement with two solid nodules...
2017: Thyroid Research
https://www.readbyqxmd.com/read/28184253/concordance-between-the-tirads-ultrasound-criteria-and-the-bethesda-cytology-criteria-on-the-nontoxic-thyroid-nodule
#20
Hernando Vargas-Uricoechea, Ivonne Meza-Cabrera, Jorge Herrera-Chaparro
BACKGROUND: Thyroid nodule is a common disorder of the thyroid. Despite their benign nature, they can be associated with multiple pathologic conditions, including thyroid cancer. METHODS: This cross-sectional study determined the concordance of Ultrasound (TIRADS criteria) and Fine Needle Aspiration Biopsy (FNA-BETHESDA system) in the assessment of the nontoxic thyroid nodule. A total of 180 subjects 18 years old or older underwent the two diagnostic tests and their results were compared using kappa index...
2017: Thyroid Research
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