Abstract Library

#4635 Comparison of 18F-DOPA PET/CT and 68Ga-DOTATOC PET/CT and their impact on response to PRRT in midgut neuroendocrine tumours

Introduction: 18F-DOPA PET/CT is a powerful diagnostic test for assessing tumour burden in midgut neuroendocrine tumours (NETs). 68Ga-DOTATOC PET/CT is required for patient selection for PRRT.

Conference:

Presenting Author: Longo M

Authors: Longo M, Coccarelli A, Henry T, Kamoun T, Morbelli S,

Keywords: F-DOPA, Ga-DOTATOC, PRRT, midgut,

#4608 A complex and rare association of neuroendocrine and endocrine neoplasms: A case report

Introduction: Neuroendocrine tumours (NETs) are sporadic or genetically inherited heterogenous neoplasms affecting multiple sites.

Conference:

Presenting Author: Cerroni L

Authors: Cerroni L, Filice A, Feola T, Sesti F, Vincenzi L,

Keywords: cushing disease, atypical carcinoid, ileal net, genetics,

#4593 Excellent response to Ac-225 DOTATATE therapy in a patient with small cell lung cancer

Introduction: Peptide receptor radionuclide therapy (PRRT) is a validated treatment for patients with NETs overexpressing somatostatin receptors (SSTR). IHC analysis indicates that up to 50% of small cell lung cancer (SCLC) tumours are SSTR2 positive and thus can be targeted by SSR imaging and PRRT. Therapy with α-emitting radionuclides, such as Ac225, may offer several advantages over β-emitters by having higher energy transfer and more effective cancer cell death.

Conference:

Presenting Author: Tuncel M

Authors: Tuncel M, Türkan C, Eryılmaz Y, Pala A, Kılıçkap S,

Keywords: Ac-225 DOTATATE, Small Cell lung cancer, PET, somatostatin receptor, PRRT,

#4533 Receptor radionuclide therapy with 177Lu-DOTATOC (177Luedotreotide or 177Lu-octreotide) in SSTR positive patients: A multicentre, prospective, phase II trial

Introduction: For advanced G1-G2 GEP-NET patients, peptide receptor radionuclide therapy (PRRT) with 177Lu-DOTATATE can be recommended. However, there are several SSTR-positive tumours for which PRRT has previously shown efficacy that are not currently covered by the indications for 177Lu-DOTATATE in Italy and, therefore, cannot benefit from it. Less used and studied is the 177Lu-DOTATOC. This is a radiopeptide with excellent safety and efficacy profile in PRRT and certainly not lower than 177Lu-DOTATATE.

Conference:

Presenting Author: Sansovini M

Authors: Sansovini M, Nicolini S, Grassi I, Marini I, Matteucci F,

Keywords: Lu-dotatoc, Radiopharaceutical Therapy Factory, SSTR positive tumour,

#4446 Uncommon ophthalmic presentation of a small bowel neuroendocrine tumour: Case report

Introduction: Neuroendocrine tumours (NETs), including carcinoid tumours, are slow-growing neoplasms commonly originating in the gastrointestinal tract or bronchus, but they can also arise in other sites. Due to their indolent nature, the majority of NETs are diagnosed at an advanced stage, typically to the lymph nodes, liver, or bones.

Conference:

Presenting Author:

Authors: Hamidatou K, Behourah Z, Ahed Messaoud M, Megaiz A, Lechar M,

Keywords: Neuroendocrine tumour, Carcinoid tumour, Orbital metastasis, somatostatin analogue injection,