Searchable abstracts of presentations at key conferences in endocrinology

ea0070ep13 | Adrenal and Cardiovascular Endocrinology | ECE2020

Distinct clinical course of neuroendocrine tumors presenting ectopic ACTH tissue expression and secretion

Oszywa Michalina , Borowczyk Martyna , Szczepanek-Parulska Ewelina , Gut Paweł , Ruchała Marek

Two female patients, A – 61-year-old, B – 68-year-old, were admitted to hospital with symptoms of hypercortisolemia. Both of them were diagnosed with neuroendocrine tumor (NET), patient A with pancreatic NET G3 (Ki67 – 30%), and patient B with a disease with a probable primary origin in lungs - NET G2 (Ki67 - 15%). Both women had metastases to the liver. While laboratory results were similar in both cases (high level of cortisol – up to 1750 nmol/l and ...

ea0049ep1450 | Thyroid (non-cancer) | ECE2017

Concomitant occurrence of papillary thyroid cancer (PTC) in a branchial cleft cyst (BCC) and an occult multifocal PTC in the thyroid gland

Szczepanek-Parulska Ewelina , Borowczyk Martyna , Kluk Alina , Dworacki Grzegorz , Orłowski Marcin , Ziemnicka Katarzyna , Ruchała Marek

Introduction: BCC is a congenital epithelial neck cyst, which occurs due to failure of the second branchial cleft to obliterate during embryogenesis. Development of PTC inside the cyst is extremely rare.Case description: A 29-year-old female presented to the endocrinology clinic with a gradually increasing painless mass in the right lateral region of the neck, identified on ultrasound examination as an anechoic cyst of size 2×2×5 cm with a smoo...

ea0056gp242 | Thyroid Cancer - Translational | ECE2018

New markers of follicular thyroid cancer found with wide-panel next-generation sequencing

Borowczyk Martyna , Szczepanek-Parulska Ewelina , Debicki Szymon , Budny Bartlomiej , Janicka-Jedynska Malgorzata , Wrotkowska Elzbieta , Majchrzycka Blanka , Ziemnicka Katarzyna , Ruchala Marek

Introduction: Thyroid nodules may be detected in up to 67% of the adult population and constitute big diagnostic challenge. Presurgical differentiation of follicular lesions between follicular adenoma (FA) and follicular thyroid carcinoma (FTC) is particularly difficult. Commercially available gene panels cover only a few, selected mutations to help in discrimination between FA and FTC. The aim of this study was to comprehensively assess the genetic background of thyroid folli...

ea0056p1185 | Thyroid cancer | ECE2018

First report of c.1683A>G FLT3 mutation found in the follicular thyroid cancer

Borowczyk Martyna , Szczepanek-Parulska Ewelina , Debicki Szymon , Budny Bartlomiej , Janicka-Jedynska Malgorzata , Wrotkowska Elzbieta , Majchrzycka Blanka , Ziemnicka Katarzyna , Ruchala Marek

Introduction: The number of thyroid cancer diagnosis has increased worldwide. However, its diagnosis, particularly in a case of follicular cancer (FTC), may be challenging. New markers of malignancy are intensively searched for.Case description: A 29-year-old female was referred for subtotal thyroidectomy in 2006 due to a nodule in the right lobe. The histopathological examination revealed follicular adenoma (FA). During endocrinological follow-up, in 20...

ea0070aep891 | Thyroid | ECE2020

Differentiation of follicular thyroid cancer from follicular thyroid adenoma with sonographic features – results of a meta-analysis

Borowczyk Martyna , Woliński Kosma , Więckowska Barbara , Jodłowska-Siewert Elżbieta , Szczepanek-Parulska Ewelina , Ruchala Marek

Introduction: According to the results of several studies and meta-analyses, certain ultrasound features are associated with increased risk of thyroid malignancy. However, most of those research papers included mainly papillary thyroid cancers (PTCs); these results cannot be simply extrapolated for the differentiation of follicular thyroid adenomas and cancers (FTAs and FTCs). The aim of the present study was to perform a meta-analysis of so far conducted research and identify...

ea0056p1145 | Thyroid cancer | ECE2018

Chronic lymphocytic thyroiditis is associated with decreased staging of differentiated thyroid cancer

Borowczyk Martyna , Janicki Adam , Dworacki Grzegorz , Szczepanek-Parulska Ewelina , Danieluk Mateusz , Barnett Jonathan , Antonik Magdalena , Kaluzna Malgorzata , Brominska Barbara , Czepczynski Rafal , Beczyk Maciej , Ziemnicka Katarzyna , Ruchala Marek

Introduction: Despite numerous studies, the biological association between chronic lymphocytic thyroiditis (CLT) and differentiated thyroid cancer (DTC) has not been elucidated yet. The aim of the study was to assess whether the presence of CLT exerts any influence on clinical or histological presentation of DTC.Materials and methods: Complete medical records of 907 consecutive patients with DTC treated at a single tertiary care department of endocrinolo...

ea0067o10 | Oral Presentations | EYES2019

The genetic landscape of indeterminate thyroid nodules

Borowczyk Martyna , Szczepanek-Parulska Ewelina , Dębicki Szymon , Budny Bartłomiej , Verburg Frederik A , Filipowicz Dorota , Wrotkowska Elżbieta , Janicka-Jedyńska Małgorzata , Więckowska Barbara , Gil Lidia , Ziemnicka Katarzyna , Ruchała Marek

Objective: The thyroid fine needle aspiration biopsy (FNAB) may bring inconclusive cytological results of atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) or follicular neoplasm/suspicious for follicular neoplasm (FN/SFN). The objective of the study was to describe the genetic landscape of indeterminate thyroid nodules to better understand this phenomenon and identify genetic markers potentially differentiating benign and malignant ...

ea0063p1204 | Thyroid 3 | ECE2019

TP53 and FLT3 may become candidate markers for detecting malignancy in follicular lesions

Borowczyk Martyna , Szczepanek-Parulska Ewelina , Dębicki Szymon , Budny Bartłomiej , Verburg Frederik A , Janicka-Jedyńska Małgorzata , Więckowska Barbara , Gil Lidia , Filipowicz Dorota , Ziemnicka Katarzyna , Ruchała Marek

Introduction: The aim of the present study was to compare follicular thyroid adenoma (FTA) and follicular thyroid carcinoma (FTC) using the wide oncological molecular panel and identify differences in mutational status which may aid in the preoperative differentiation between these two related thyroidal pathologies, as well as in an understanding their pathways of origin.Material and methods: We analyzed formalin-fixed paraffin-embedded (FFPE) samples ac...

ea0070aep867 | Thyroid | ECE2020

Loss of heterozygosity (LOH) at 12q24.11 as a potential marker of follicular thyroid lesions malignancy

Borowczyk Martyna , Szczepanek-Parulska Ewelina , Budny Bartłomiej , Dębicki Szymon , Verburg Frederik , Filipowicz Dorota , Wrotkowska Elżbieta , Gil Lidia , Janicka-Jedyńska Małgorzata , Oszywa Michalina , Ziemnicka Katarzyna , Ruchala Marek

Introduction: Pre- and postsurgical differentiation between follicular thyroid adenoma (FTA) and follicular thyroid cancer (FTC) represents a significant diagnostic challenge. Typical markers of malignancy may appear as specific genetic alterations. Next-generation sequencing (NGS) studies bring information about single point mutations, however better insight into follicular thyroid lesions genetic landscape, encompassing bigger rearrangements, is needed.<p class="abstext"...