Clinical and Immunohistochemical Evaluation of Medullary Thyroid Cancer (MTC) and C Cell Hyperplasia (CCH) Abstract #299

Introduction: MTC and CCH has a variable clinical presentation and prognosis and no data are available on the correlation between immunoistochemical (IIC) characterization and clinical behavior.
Aim(s): Evaluation of clinical behavior, prognosis and IIC expression (PTTG-1, SSTR2A, VEGFR-1, -2 and -3) in 23 patients affected by MTC and/or CCH.
Materials and methods: Twenty-three patients affected by MTC and/or CCH were included. All patients underwent total thyroidectomy, pre- and post-operative calcitonin assay, staging, histological examination, IIC evaluation of expression of PTTG-1, SSTR2A, VEGFR-1, -2 and -3.
Conference: 8th Annual ENETS Conference (2011)
Category: Basic
Presenting Author: Prof Laura De Marinis

To read results and conclusion, please login ...

Further abstracts you may be interested in

#2813 Clinical Presentation and Prognosis of Patients with Medullary Thyroid Cancer
Introduction: Medullary thyroid carcinoma (MTC) is a rare type of tumor that originates from parafollicular C-cells and accounts for 3–4% of all malignant thyroid neoplasms. MTC presents as sporadic (75–80%) or inherited tumors (20–25%). Hereditary MTC is part of multiple endocrine neoplasia type 2 (MEN2).
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: Federica de Cicco
#142 The role of 18F DOPA-PET in a case of malignant pheochromcytoma
Introduction: Pheocromocytoma is a rare tumor arising from chromaffin cells of adrenal medullary or extra adrenal paraganglionic tissue. Histological criteria cannot differentiate benign from malignant pheocromocytomas. The diagnosis of a malignant pheocromocytoma requires local invasion, recurrence and documented metastatic disease. The radionuclide scanning (123I - 131I-MIBG) is a fundamental diagnostic tool used to confirm the biochemical and radiological diagnosis of pheochromocytoma. In fact, MIBG scanning may confirm that the visualised lesion in an adrenal gland is indeed a pheochromocytoma and detect extra-adrenal paraganglionic tissue. However, MIBG scans are negative in around 15% of benign pheochromocytomas and in up to 50% of malignant ones. Other radionuclide techniques (18FDG-PET, 18F-DOPA-PET, 18F-FDA-PET) have been successfully used in investigation of pheochromocytomas. 18F-DOPA-PET and 18F-FDA-PET have been reported to be highly sensitive and specific for benign pheochromocytomas, while 18FDG-PET can be useful for malignant lesions with higher metabolic activity.
Conference: 7th Annual ENETS Conference (2010)
Category: Clinical
Presenting Author: Prof. Laura De Marinis
#2964 Personalized Therapy in a Case of Esophageal NEC Based on Tumor Genome Sequencing
Introduction: High-grade esophageal neuroendocrine carcinomas (NEC) constitute a rare subgroup of neuroendocrine neoplasms, with a particularly aggressive behaviour and unfavourable prognosis. To date, there are no validated biomarkers for personalized therapy and cytotoxic chemotherapy remains the standard of care. However, tumor genome sequencing may help improve NEC molecular landscape knowledge in order to identify novel targets for an individualized approach.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Case reports
Presenting Author: MD Anna La Salvia
#2939 Prognostic Evaluation for Gastroenteropancreatic NEC: AJCC or ENETS Staging Classification or Others?
Introduction: For poorly-differentiated gastroenteropancreatic neuroendocrine carcinoma (GEP-NEC), American Joint Committee on Cancer (AJCC) recommends to use a classification different from that for well-differentiated neuroendocrine tumor. However, this is not adopted by European Neuroendocrine Tumor Society (ENETS) staging classification.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Pathology - grading, staging
Presenting Author: Professor Jie Chen
Authors: Zhang Y, Chen L, Lin Z, Zhang T, ...
#2734 Therapy-Related Myeloid Neoplasms in Patients with Neuroendocrine Neoplasms after Peptide Receptor Radionuclide Therapy: A Systematic Review
Introduction: Therapy-related myeloid neoplasm (t-MN) has been reported as a potential long-term and frequently lethal adverse event after PRRT in NET. However, the incidence, time of diagnosis, and nature of t-MN is unclear.
Conference: 17th Annual ENETS Conference 2020 (2020)
Category: Epidemiology/Natural history/Prognosis - Registries, nationwide and regional surveys
Presenting Author: DR Mohamad Sonbol
Authors: Sonbol M, Hilal T, Halfdanarson T, ...