Searchable abstracts of presentations at key conferences in endocrinology

ea0070aep892 | Thyroid | ECE2020

Anaplastic thyroid cancer arising froma patient with congenital thyroid dyshormonogenesis; A case report with a novel thyroglobulin gene mutation

Yoon Jeehee , Ram Hong A , Kim HeeKyung , Kang Ho-Cheol

Background: Concomitant thyroid cancer in patients with congenital thyroid dyshormonogesis (TD) is extremely rare and only few cases of differentiated thyroid cancer in patients with TD were reported in literature. We present the first case of anaplastic thyroid cancer (ATC) in woman with TD.Case: A 46-year-old female patient was referred to our hospital for thyroid surgery due to rapid tumor growing and compressive symptoms. The fine needle aspiration r...

ea0070aep905 | Thyroid | ECE2020

Spurious thyroid function test results due to interference: Consider concealed biotin in health supplements

Kyung Kim Hee , Hee Yoon Jee , Ram Hong A , Kang Ho-Cheol

Biotin is used in many hormone immunoassays as an immobilizing system as streptavidin binds biotin with high affinity. Recently, cases with spurious results from biotin interference have been increasing due to widespread use of vitamin supplements containing biotin. We report two cases of erroneously high total T3 levels caused by biotin interference.Case 1: A 88-year-old female who had total thyroidectomy for papillary thyroid cancer 10 years ago and ha...

ea0092ps2-13-04 | Surgery | ETA2023

Multifocality is not a risk factor for recurrence after thyroid lobectomy: A study of 1,684 patients with differentiated thyroid cancer

Kyung Kim Hee , Cho Jin-Seong , Yong Park Ji , Choi Wonsuk , Ram Hong A , Kang Ho-Cheol

Background: We evaluated the impact of the multifocality on post-lobectomy recurrence in patients with differentiated thyroid cancer (DTC).Methods: We analyzed 1,684 patients with DTC who underwent thyroid lobectomy from 2008 to 2015 using logistic regression models to calculate the relative risk on post-lobectomy recurrence.Results: Tumor diameter increased from 4.9 mm to 8.1 mm and the proportion of extrathyroidal extension (ETE)...

ea0101ps3-22-01 | Diagnosis of thyroid cancer-2 | ETA2024

Ultrasonographic features predicting lateral cervical lymph node metastases in patients with papillary thyroid microcarcinoma

Kyung Kim Hee , Hee Yoon Jee , Yong Park Ji , Ram Hong A , Seong Cho Jin , Kang Ho-Cheol

Background: Papillary thyroid microcarcinoma (PTMC) is characterized by its favorable prognosis and potential for active surveillance (AS) as a management option. However, the presence of cervical lymph node (LN) metastasis, especially lateral LN metastasis, significantly impacts both management and prognosis. This study identified predictors of lateral LN metastasis by analyzing pre-operative ultrasonographic findings alongside clinicopathological factors.<p class="abstex...

ea0056p841 | Pituitary - Clinical | ECE2018

Optimal follow-up strategy based on the natural history of nonfunctioning pituitary adenomas

Hee Kim Jung , Dho Yun-Sik , Hwy Kim Yong , Hyun Lee Jung , Hyun Lee Ji , Ram Hong A. , Kyong Moon Min , Soo Shin Chan

Object: The natural history and proper algorithm for follow-up testing of nonfunctioning pituitary adenomas (NFPAs) are not well known, despite their relatively high prevalence. The aim of this study was to suggest the optimal follow-up algorithm for NFPAs, based on the natural history.Methods: We followed up on 197 patients with NFPAs without any treatment (including surgery and radiation) at the time of detection, in a single center, between March 2000...