Endocrine Abstracts

The requirement for Sestimibi imaging of the parathyroid glands has increased over recent years, partly due to advances in surgical techniques and the need for accurate pre-operative localisation. We audited sestimibi imaging to ensure efficient and appropriate use of this tool in the face of increasing demand. Over two and a half years 128 scans were identified by Nuclear Medicine. We obtained biochemistry and operative status for these using the hospital patient administrati...

Successful surgery for pancreatic neuro-endocrine tumours (NET) requires accurate tumour localisation. Interpretation of cross-sectional imaging is often difficult, particularly after pancreatic surgery. Imaging by somatostatin-receptor-scintigraphy with indium-labelled octreotide may be useful in identifying recurrent disease; however, octreotide scans may be negative in some pancreatic NET, due to a low level of expression of somatostatin receptors. The GLP-1 receptor is abu...

Introduction: Histology is a poor predictor of the malignant potential of phaeochromocytomas and paragangliomas (PPGL) and only the presence of distant metastasis confirms malignancy. This study reviews patterns of recurrence, treatment and mortality in patients with malignant PPGL presenting to our department at UCLH over 30 years.Materials and Methods: In our series of 128 patients with PPGL, 26 (20%) with maligna...

Background: Radioiodine treatment (RIT) for benign functioning thyroid disease is an effective treatment for patients with hyperthyroidism. The safety, preparation, administration and follow-up of treatment demands time and organisation. The planning of this elective treatment is affected by the patient’s availability which makes adequate and timely treatment of the subsequent hypothyroidism challenging. A quality improvement project was therefore set up to mitigate this....

Introduction: Histology is a poor predictor of the malignant potential of phaeochromocytomas and paragangliomas (PPGL) and only the presence of distant metastasis confirms malignancy. This study reviews patterns of recurrence, treatment and mortality in patients with malignant PPGL presenting to our department at UCLH over 30 years.Materials and Methods: In our series of 128 patients with PPGL, 26 (20%) with maligna...

Background: Radioiodine treatment (RIT) for benign functioning thyroid disease is an effective treatment for patients with hyperthyroidism. The safety, preparation, administration and follow-up of treatment demands time and organisation. The planning of this elective treatment is affected by the patient’s availability which makes adequate and timely treatment of the subsequent hypothyroidism challenging. A quality improvement project was therefore set up to mitigate this....

Background: Characterisation of large adrenal lesion is challenging. There is no single robust imaging marker in defining benignity, especially for lesions which are greater than 4cm and are believed to carry increased risk of malignancy.A radiolabelled cholesterol analog tracer, I-131-Norcholesterol (NP-59), localises to adrenal cortical lesions. It has an established role in Conn’s syndrome. It is not expected to concent...

Background: Characterisation of large adrenal lesion is challenging. There is no single robust imaging marker in defining benignity, especially for lesions which are greater than 4cm and are believed to carry increased risk of malignancy.A radiolabelled cholesterol analog tracer, I-131-Norcholesterol (NP-59), localises to adrenal cortical lesions. It has an established role in Conn’s syndrome. It is not expected to concent...

Introduction: Congenital hyperinsulinism (CHI) is the most common cause of persistent hypoglycaemia in infants and children. Histologically there are two subgroups, diffuse and focal. Fluorine-18-L dihydroxyphenylalanine positron emission tomography (18F-DOPA PET/CT) helps to differentiate focal from diffuse CHI.Objective and hypotheses: To evaluate the feasibility of using 18F-DOPA PET/CT for the diagnosis of focal or diffuse CHI u...

Introduction: Congenital hyperinsulinism (CHI) includes two major histological subtypes; diffuse and focal. Fluorine-18-L dihydroxyphenylalanine positron emission tomography (18F-DOPA PET/CT) has been established as a novel imagining technique to differentiate focal from diffuse CHI. However CT provides only limited soft tissue contrast and exposes the patient to a significant radiation dose. PET/MRI could provide images with an excellent soft tissue contrast, very ...