Yun-Sung Lim

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BACKGROUND Papillary thyroid carcinoma (PTC) frequently metastasizes to the regional neck; skip metastasis (metastasis to the lateral compartment in the absence of central disease) is uncommon. This prospective study was to evaluate the incidence of occult lateral neck metastasis (LNM) and elucidated the factors that predict LNM in PTC with central neck(More)
BACKGROUND Lateral cervical lymph node metastasis without central lymph node (CLN) metastasis is not infrequent in papillary thyroid cancer (PTC). This study was designed to investigate the frequency and pattern of skip metastasis in PTC. METHODS We reviewed 131 patients who underwent total thyroidectomy with CLN dissection and selective lymph node(More)
BACKGROUND Nodal metastasis in papillary thyroid cancer (PTC) usually occurs in the central compartment of the ipsilateral neck and spreads laterally. The purpose of this study was to evaluate the diagnostic accuracy of frozen biopsy for quantitative nodal evaluation of central neck metastasis in PTC. METHODS In all, 252 patients with PTC underwent total(More)
BACKGROUND The status of metastatic lymph nodes, including the size and extracapsular spread (ECS), in papillary thyroid cancer (PTC) has not been well established. This study evaluated the correlation between the specific status of central lymph node metastases (CLNM) and negative prognostic factors. METHODS We reviewed 243 patients who underwent total(More)
BACKGROUND Mesenchymal stromal cells (MSCs) are multipotent progenitor cells that originally derived from bone marrow. Clinical use of bone marrow-derived MSC is difficult due to morbidity and low MSC abundance and isolation efficiency. Recently, MSCs have been isolated from various adult tissues. Here we report the isolation of adenoid tissue-derived MSCs(More)
OBJECTIVES Mesenchymal stem cells (MSCs) play an important role in the development and growth of tumor cells. However, the effect of human MSCs on the growth of human tumors is not well understood. The purpose of this study is to confirm the growth effect of palatine tonsil-derived MSCs (TD-MSCs) on head and neck squamous cell carcinoma (HNSCC) cell lines(More)
BACKGROUND In thyroid cancer, preoperative ultrasonography (US) is performed to detect the primary tumor and lymph node metastasis (LNM), which are related to prognosis. This study examined the relationships between specific US findings and LNM in micropapillary thyroid cancer (MPTC). METHODS Data on 220 patients with solitary MPTC who underwent total(More)
We evaluated the efficacy and outcome of intracordal auricular cartilage injection in patients with unilateral vocal fold paralysis. Our interest developed from findings of a canine model study that reported that histologic characteristics of cartilage were preserved 2 and 3 years after intracordal autologous cartilage injection. Between May 2002 and July(More)
The objective of this study was to evaluate the role of group 3 innate lymphoid cells (ILC3) in the middle ear (ME) mucosal response to bacterial infection in a rat model. To confirm the role of ILC3 in bacterially induced otitis media (OM), the serum concentrations of IL-17 and IL-22 were determined by ELISA, and the tissue expression of IL-17 and IL-22 in(More)
BACKGROUND Tumor hypoxia induces hypoxia-inducible factor-1α (HIF1α), which can influence tumorigenesis and metastasis. We evaluated the expression of HIF1α and the effect of HIF1α inhibitors in adenoid cystic carcinoma (ACC). MATERIALS AND METHODS HIF1α expression was demonstrated in ACC cell lines (ACC2 and ACCM). The effect of HIF1α inhibitors was(More)