Publications by authors named "Leonie T van Hulsteijn"

Introduction: Women with a current diagnosis or past history of Graves' disease (GD) are at risk of developing fetal thyrotoxicosis (FT) during pregnancy when they are inadequately treated, or because of placental passage of TSH receptor antibodies (TRAb). It is known that FT induced by high maternal thyroid hormone concentrations may result in infant (central) hypothyroidism.

Case Presentation: In a euthyroid woman with a history of GD treated with radioactive iodide (I131), persistently high levels of maternal TRAb resulted in recurrent FT during two separate pregnancies, followed by neonatal hyperthyroidism and infant central hypothyroidism.

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Background: Pathogenic germline variants in subunits of succinate dehydrogenase (, and ) are broadly associated with disease subtypes of phaeochromocytoma-paraganglioma (PPGL) syndrome. Our objective was to investigate the role of variant type (ie, missense vs truncating) in determining tumour phenotype.

Methods: Three independent datasets comprising 950 PPGL and head and neck paraganglioma (HNPGL) patients were analysed for associations of variant type with tumour type and age-related tumour risk.

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Germline mutations in succinate dehydrogenase subunit B and D ( and ) are predisposed to hereditary paraganglioma (PGL) and pheochromocytoma (PHEO). The phenotype of pathogenic variants varies according to the causative gene. In this retrospective study, we estimate the mortality of a nationwide cohort of variant carriers and that of a large cohort of variant carriers and compare it to the mortality of a matched cohort of the general Dutch population.

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Background: Several infectious processes of intra-abdominal origin may atypically present as skin or soft tissue infections or abscess in the thigh.

Case Report: We describe the case of a 73-year-old woman who presented to the emergency department with the clinical picture of a skin infection of the right leg. The patient's condition deteriorated during medical treatment with intravenous antibiotics.

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Article Synopsis
  • Germline variants in the SDHD gene are linked to a higher risk of paragangliomas, and this study aimed to compare mortality rates of SDHD variant carriers in the Netherlands with the general population.
  • The research, conducted at Leiden University Medical Center, involved 275 SDHD variant carriers, predominantly with the c.274G>T, p.(Asp92Tyr) variant, who were monitored for mortality over an average follow-up of 7.6 years.
  • Findings showed that mortality rates among SDHD carriers were not significantly higher than those in the general population, with a standardized mortality ratio of 1.07, suggesting no substantial increase in mortality risk.
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SDHB mutation carriers are predisposed to developing paragangliomas (PGLs). The objective of this study was to assess genotype-phenotype correlations of a Dutch cohort of SDHB mutation carriers and assess potential differences in clinical phenotypes related to specific SDHB founder mutations. Forty-seven consecutive SDHB mutation carriers were included.

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Background: Octreotide, a somatostatin analog, may be beneficial in the treatment of head and neck paragangliomas (HNPGLs).

Methods: We conducted a nonblinded, prospective intervention study. During 1 year, patients received a monthly intramuscular injection of 30 mg octreotide.

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The primary treatment goal of radiotherapy for paragangliomas of the head and neck region (HNPGLs) is local control of the tumor, i.e. stabilization of tumor volume.

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The main objective of this study was to perform a systematic review and meta-analysis on the risk of developing malignant paraganglioma (PGL) in SDHB-mutation and SDHD-mutation carriers. PubMed, EMBASE, Web of Science, COCHRANE and Academic Search Premier (2000-August 2011) and references of key articles were searched to identify potentially relevant studies. The main outcomes were the pooled incidence and prevalence of malignant PGL in SDHB-mutation and SDHD-mutation carriers.

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Purpose: The aim of this study was to systematically review literature, exploring the role of radioguided surgery with iodine-labeled metaiodobenzylguanidine (MIBG) in resection of neuroendocrine tumors.

Methods: PubMed, EMBASE, Web of Science, COCHRANE, CINAHL, Academic Search Premier, ScienceDirect, Wiley, and references of key articles were searched to identify potentially relevant studies.

Results: Twenty studies were included.

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Radioactive MIBG can be used in radioguided surgery for neuroendocrine tumors. We report the case of a man with a mutation in the succinate dehydrogenase subunit B (SDHB) gene, in which an abdominal MRI scan identified two 5-mm left para-aortic nodules, suspect for paragangliomas. Subsequent SPECT revealed increased uptake of tracer.

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Background: Case reports have documented carcinoid-like features in head and neck paragangliomas (HNPGLs), which, in addition to catecholamine storing granules, may also contain granules with serotonin. Serotonin is metabolized to 5-hydroxyindoleacetic acid (5-HIAA). 


Aim: To assess the urinary excretion rates of 5-HIAA and catecholamines in HNPGL patients.

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Objective: To identify the optimal surgical strategy for multiple endocrine neoplasia type 1 (MEN1)-related primary hyperparathyroidism (pHPT). To describe the course of postoperative hypoparathyroidism and to assess whether genotype is associated with persistent/recurrent pHPT.

Background: Surgery is the preferred treatment in MEN1-related pHPT, but the surgical procedure of choice is still uncertain.

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Background: Thyroid-stimulating hormone (TSH) promotes expression of thyroid hormones which are essential for metabolism, growth, and development. Second-line drugs to treat tuberculosis (TB) can cause hypothyroidism by suppressing thyroid hormone synthesis. Therefore, TSH levels are routinely measured in TB patients receiving second-line drugs, and thyroxin treatment is initiated where indicated.

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