[f]The following were selected from among 91 abstracts for oral presentation during the 4th Annual ENETS Conference held in Barcelona in March 2007. The authors in bold were awarded monetary prizes during the conference:[/f] [u][ueb2]Clinical Research[/ueb2][/u] Emilio Bajetta et al, Milan, Italy. 85 cases of Merkel cell carcinoma from a single institution Richard P. Baum et al, Bad Berka, Germany. Peptide receptor radionuclide therapy (PRRT) using Lu-177 DOTA-NOC and Lu-177 DOTA-TATE [f]Sanjeev Bhattacharyya et al, London. NT-proBNP as a biomarker for the development of carcinoid heart disease[/f] [f]Jonathan Strosberg et al, Tampa, FL, USA. Metastatic carcinoid tumor to the ovary: An analysis of seventeen cases [/f] [f]Christina Swärd et al, Gothenborg, Sweden. Evaluation of survival and biochemical response after hepatic arterial embolization in patients with midgut tumors[/f] Laura Tang et al, New York, NY, USA. Gastric carcinoid tumors: The pathological spectrum of an immune conundrum [u][ueb2]Basic Research[/ueb2][/u] [f]Janet Cunningham et al, Uppsala, Sweden. Expression of tachykinins in serotonin-producing NETs and their relationship to the carcinoid syndrome[/f] Dieter Hoersch et al, Bad Berka, Germany. mTOR as a target in neuroendocrine tumors Lars Kölby et al, Gothenborg, Sweden. CgA as marker for tumor response after receptor mediated radiation therapy of human midgut carcinoid xenografted to nude mice [f]Rosario Pivonello et al, Naples, Italy. Dopamine receptor expression and dopamine agonist effectiveness in medullary thyroid cancer[/f] [f]Alena Shyla et al, London, Neuherberg, Germany. Genetic alterations in MENX-associated phaeochromocytoma[/f] Apostolos Tsolakis et al, Uppsala, Sweden. Ghrelin in patients with gastric endocrine tumors