Searchable abstracts of presentations at key conferences in endocrinology

ea0048cp4 | Poster Presentations | SFEEU2017

A novel approach to the investigation of an atypical adrenal lesion: 11C-metomidate PET-CT combined with 18F-FDG PET-CT in a rare case of adrenal Hodgkin’s lymphoma

Powlson Andrew S , Koulouri Olympia , Cheow Heok K , Shaw Ashley , Jamieson Neville V , Follows George , Gurnell Mark

Case history: A 66-year-old man presented with a 1 month history of a productive cough, in the context of a 20 pack-year smoking history. CT chest revealed minor bronchiectasis and an incidental 3 cm right adrenal lesion. He was referred to the endocrine clinic for further evaluation. On questioning, he reported no symptoms suggestive of adrenal hormone hypersecretion and, aside from a short history (<1 month) of sweating episodes at night, he described no other constituti...

ea0037oc1.4 | Adrenal 1 | ECE2015

11C-metomidate PET-CT in primary aldosteronism: five possible indications for a non-invasive alternative to adrenal vein sampling

Powlson Andrew S , Koulouri Olympia , Azizan Elena , Maniero Carmela , Taylor Kevin , Aigbirhio Franklin , Koo Brendan , Cheow Heok K , Buscombe John , Gurnell Mark , Brown Morris J

Background: Adrenal vein sampling (AVS) remains the gold-standard for distinguishing unilateral and bilateral disease in primary aldosteronism (PA). However, it is invasive, technically demanding, and may yield inconclusive or equivocal results. 11C-Metomidate PET-CT (11C-MTO-PET-CT) is a non-invasive alternative to AVS for localising unilateral aldosterone-producing adenomas (APAs).Methods/patients: We report a retrospective analys...

ea0037gp.20.08 | Pituitary – Hypopituitarism | ECE2015

‘Pseudo-resistance' in macroprolactinomas treated with dopamine agonists; recognising delayed radiological response and a role for 11C-methionine PET-CT in guiding management

Powlson Andrew S , Koulouri Olympia , Steuwe Andrea , Gillett Daniel , Heard Sarah , Hoole Andrew , Scott Miriam , Challis Benjamin G , Antoun Nagui , Cheow Heok K , Mannion Richard J , Gurnell Mark

Background: Endocrine Society guidelines classify macroprolactinomas as ‘resistant’ if there is failure to normalise prolactin, or to achieve radiological tumour shrinkage of >50%, on standard doses of dopamine agonist. In this context, escalation of treatment to maximal tolerable doses and/or referral for surgery is advised. However, we have recently observed several ‘discordant responders’, where tumour shrinkage lags significantly (>6 months) beh...

ea0094op8.1 | Late Breaking Abstracts Respectively | SFEBES2023

Real-world experience with 11C-methionine PET co-registered with MRI in the management of acromegaly – Insights from a single reference centre 12 year observation

Haberbosch Linus , MacFarlane James , Koulouri Olympia , Gillett Daniel , Huynh Kevin A. , Jones Jonathan , Cheow Heok K. , Spranger Joachim , Mai Knut , Strasburger Christian J. , Mannion Richard , Gurnell Mark

Background: 11C-methionine positron emission tomography (Met-PET) is a potentially important imaging adjunct in the diagnostic workup of pituitary adenomas, including somatotroph tumours. Met-PET can identify residual or occult disease and make definitive therapies accessible for a subgroup of patients who would otherwise require lifelong medical therapy. However, data on its use is still limited to small case series. Here, we report the currently largest sing...