Yoon-Seok Choi

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PURPOSE The aim of this study was to define the characteristic sonographic features of Warthin's tumors in the parotid gland, thus enhancing the ability to make a preoperative diagnosis of this disease process. METHODS We retrospectively evaluated the sonograms of Warthin's tumors of the parotid gland that had been confirmed by histopathologic examination(More)
BACKGROUND Even though the olfactory function usually is improved or unchanged after ethmoidectomy, some patients complain of olfactory disturbance, which may be caused by direct injury to the olfactory nerves. However, the detailed anatomic pathway of the olfactory nerves that leave the olfactory mucosa and after going through the cribriform plate insert(More)
BACKGROUND It is suggested that polysensitized patients might not benefit from specific allergic rhinitis immunotherapy as much as monosensitized patients, although further research on this subject is needed. OBJECTIVE To compare the efficacy of sublingual immunotherapy (SLIT) with standardized house dust mite extract in monosensitized and polysensitized(More)
We propose a new genetic fuzzy discretization method with feature selection for the pattern classification problems. Traditional discretization methods categorize a continuous attribute into a number of bins. Because they are made on crisp discretization, there exists considerable information loss. Fuzzy discretization allows overlapping intervals and(More)
The past two decades have ushered in a new era of nasal tip surgery. The new philosophy focuses on preserving and reorienting nasal tip structures. Modern suture techniques can give predictable results because of more precise suture placement. Only a few reports, however, have objectively evaluated the suture techniques for Asians. Accordingly, the authors(More)
OBJECTIVES Mucus secretion and inflammatory cytokines are increased in cases of chronic sinusitis with polyp. In this study we initially investigated the localization of MUC5AC protein in human nasal polyps. We then examined whether tumor necrosis factor-alpha (TNF-alpha) induces MUC5AC gene expression and whether extracellular signal-regulated kinase (ERK)(More)
Recent reports have shown that cytokines inhibit fluid absorption by suppressing Na(+) channel activity in various epithelia. In this study, we investigated the role of epithelial sodium channel (ENaC) in fluid absorption in normal human middle ear epithelial (NHMEE) cells, as well as the effects of Interleukin (IL)-1beta on ENaC expression and fluid(More)
OBJECTIVE Olfactory neuroblastomas are very aggressive tumors with a high locoregional recurrence rate and distant metastasis. Surgical treatment, including craniofacial resection, has been the main treatment modality, but treatment outcomes of concurrent chemoradiotherapy remain unclear. We present our experiences regarding the treatment outcome of(More)
CONCLUSION Sublingual immunotherapy (SLIT) with house dust mite (HDM) extracts in school-age children and adolescents seems to be as effective as in adults. SLIT could be recommended as a therapeutic modality in pediatric allergic rhinitis (AR) patients sensitized to HDMs. OBJECTIVES To investigate the efficacy of HDM SLIT in pediatric patients with AR.(More)
The ultimate goal in treating zygomatic complex fracture is to obtain an accurate, stable reduction while minimizing external scars and functional deformity. The present authors present our experiences with a single transconjunctival incision and two-point (inferior orbital rim and frontozygomatic suture) fixation in 53 patients with zygomatic complex(More)