Thoracic and Gastroenteropancreatic (GEP) Neuroendocrine Tumors (NETs) and Ectopic Adrenocorticotropin (ACTH) Syndrome (EAS) Abstract #467

Introduction: Ectopic Adrenocorticotropin (ACTH) Syndrome (EAS) is associated with a variety of malignancies, mostly of neuroendocrine origin. Several series report on the relative contribution of EAS in the spectrum of Cushing’s syndrome. However, information on the incidence/prevalence of EAS in the setting of patients diagnosed with thoracic or gastroenteropancreatic (GEP) neuroendocrine tumors (NETs) is virtually absent.
Aim(s): Screening of a large consecutive series of Thoracic NET or GEP NET patients for the presence/occurrence of EAS in a retrospective case-record study in a Tertiary academic referral centre.
Materials and methods: Four-hundred and ninety-one patients diagnosed with thoracic or GEP NETs between 2000-2009 were studied. We differentiated between previous, synchronous and metachronous occurrence of EAS. Synchronous EAS was defined as occurring between six months before and six months after first diagnosis of the thoracic or GEP NET. MEN1 and SCLC were excluded.
Conference: 9th Annual ENETS Conference (2012)
Category: Clinical
Presenting Author: Drs. Kimberly Kamp
Keywords: ACTH, GEP-NETS, Cushing

To read results and conclusion, please login ...

Further abstracts you may be interested in

#1142 GastroEnteroPancreatic and Thoracic Neuroendocrine Tumors and the Ectopic Adrenocorticotropin Syndrome
Introduction: Ectopic Adrenocorticotropin (ACTH) Syndrome (EAS) is associated with a variety of malignancies, predominantly of neuroendocrine origin. Several series report on the relative contribution of EAS in the spectrum of Cushing’s syndrome. However, information on the incidence/prevalence and prognosis of EAS in the setting of patients diagnosed with Thoracic or GEP-NETs is virtually absent.
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Epidemiology/Natural history/Prognosis - Prognosis
Presenting Author: drs. Kimberly Kamp
#2885 Ectopic Neuroendocrine Carcinoma: An Occult Source of ACTH
Introduction: About 250 cases of ectopic ACTH-producing neuroendocrine carcinoma (ACTH-NEC) have been reported; however metastatic ACTH-NEC of unknown primary is very rare. Usually are characterized by having a large cell, small cell, poorly differentiated or anaplastic cell, and Ki-67 index between 40-90%.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: MD Deyanira González Devia
#712 A Retrospective Analysis of Safety and Efficacy of Everolimus in Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET) Patients That Showed Progression after PRRT
Introduction: GEP-NET patients have been treated successfully with SSAs. Upon progression, peptide receptor radiotherapy (PRRT) with 177Lu-octreotate is successful. PRRT is not unlimited. Some patients became refractory after therapy. There is a high medical need. Everolimus (mTOR inhibitor) is a promising therapy for progressive G1/G2 GEP-NETs, with well-established safety. Everolimus has shown efficacy in patients with (non-)PNET (RADIANT-2/-3). However, toxicity data of Everolimus after PRRT is lacking.
Conference: 10th Annual ENETS Conference 2013 (2013)
Category: Medical treatment - Targeted therapies
Presenting Author: drs. Kimberly Kamp
Authors: Kamp K, Feelders R, De Herder W, ...
#981 Parathyroid Hormone-Related Peptide (PTHrP) Secretion by Metastatic Gastroenteropancreatic Neuroendocrine Tumors (GEP-NET): Clinical Features, Diagnosis, Management, and Long-Term Follow-Up
Introduction: There are a few large series of patients with parathyroid hormone (PTH)-related protein (PTHrP) secreting neuroendocrine tumors (NETs) causing severe hypercalcemia.
Conference: 11th Annual ENETS Conference 2014 (2014)
Category: Clinical cases/reports
Presenting Author: Drs Kimberly Kamp
Keywords: PTH, PTHrP, net, hypercalcemia
#1118 Is There an Additional Value of Somatostatin Receptor Subtype 2A Immunohistochemistry Over Somatostatin Receptor Scintigraphy in Predicting Gastroenteropancreatic Neuroendocrine Tumor Response?
Introduction: It is not known whether tumoral somatostatin receptor subtype 2a (sst2a) immunohistochemistry (IHC) has additional value over OctreoScan® uptake in predicting response to PRRT in patients with gastroenteropancreatic neuroendocrine tumors (GEP-NETs).
Conference: 12th Annual ENETS Conference 2015 (2015)
Category: Medical treatment - Others
Presenting Author: MD Roxanne Van Adrichem
Keywords: sst2a