Endocrine Abstracts

75% of patients presenting with a phaeochromocytoma (PCC) or paraganglioma (PGL) have no relevant family history, but a germline pathogenic variant is identified in 30–40%. In our genetic endocrine clinic, over 80% of patients with malignant PCC or PGL have SDHA/SDHB/SDHC/SDHD/MAX or FH pathogenic variants identified, confirming high heritability in severe disease.We describe a series of seven patients from fiv...

Bladder Paragangliomas (PGLs) constitute < 1% of all bladder tumours and 5% in our patient cohort of 80 patients with tumours due to SDH deficiency. They often display an aggressive phenotype with metastatic disease and require long-term follow up. SDHB immunostaining plays a significant role in initial risk stratification and facilitating appropriate genetic testing. We present four cases of bladder PGLs; two with SDHB mutation, one SDHA and one is awaiting extended genet...

Background: Tertiary adrenal insufficiency (TAI) is a complication of long-term exogenous steroid use which results in suppression of the hypothalamic-pituitary-adrenal (HPA) axis. The short synacthen test (SST) is used to assess HPA axis function and recovery during glucocorticoid weaning. This study examined the effect of steroid preparation, dosage and therapy duration on HPA axis suppression.Method: A retrospective analysis of 950 SSTs performed betw...

Introduction: Pancreatic neuroendocrine tumours (pNETs) are the main cause of mortality in patients with multiple endocrine neoplasia type 1 (MEN1). The CLARINET study demonstrated that somatostatin analogue treatment improved progression free survival in patients with enteropancreatic NETs but little is known about the role of SSA in preventing progression of pNETs in MEN1 (1). Many centres have started using SSA treatment in MEN1 patients with enlarging pNETs or tumours &#62...

Bladder Paragangliomas (PGLs) are rare forms of neuroendocrine tumours arising from sympathetic paraganglionic tissue. They account for <1% of all Pheochromocytomas and Paragangliomas (PPGLs) and < 0.06% of all bladder tumours. All patients with PPGLs are recommended to be considered for genetic testing as ~ 40% of PPGLs are associated with a germline mutation, even if there is no prior family history of disease. Identifying an inherited PPGL predisposition has importa...

Aims/objectives: Obesity and prediabetes are risk factors for developing T2D. 5–10% weight-loss can reduce risk of developing T2D by >50%. The 3-year part of this phase 3 trial investigated effects of liraglutide 3.0 mg, as adjunct to diet+exercise, in delaying onset of T2D over 3 years, body-weight and cardiometabolic risk factors in adults with obesity or overweight with comorbidities, and diagnosed with prediabetes at screening.Methods: Indiv...

Parathyroidectomy is the only definitive cure for primary hyperparathyroidism (PHPT). The standard for pre-operative localisation of parathyroid pathology at our institution is both a (99m)Tc-sestamibi SPECT/CT (sestamibi) and neck ultrasound scan (USS). The aim of this audit was to assess the accuracy of this standard pre-operative imaging.Methods: Retrospective data was gathered from all parathyroidectomies performed at St Thomas’ Hospital between...

Background: It is recognised that there is ‘cross-talk’ between the thyroid and hypothalamo-pituitary–adrenal (HPA) axes. The few available studies suggest that cortisol levels may be low and cortisol metabolism altered in some patients with thyrotoxicosis.Aim: To compare HPA axis variables in the thyrotoxic state (TT) and euthyroid state (EU).Materials and methods: Short synacthen testing (250 μg tetracosactide...

Background: Incidental pituitary haemorrhage in prolactinomas is a common radiological finding. The clinical significance, associations and outcome of this are largely unknown. Most reports describe surgically treated macroprolactinoma and non-functioning adenoma, and there are few data in a clinic prolactinoma population.Aims: To characterise the prevalence, natural history and risk factors associated with pituitary haemorrhage in a large clinic prolact...

Background: Incidental pituitary haemorrhage, not associated with pituitary apoplexy, is a common clinical and radiological finding. Little information exists on the clinical behaviour of incidental haemorrhage with most reports describing surgically treated macroprolactinoma and non-functioning adenoma, and there are few data in a clinic prolactinoma population.Aims: To characterise the prevalence, natural history and risk factors associated with pituit...