Young-Soo Rho

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The purpose of this retrospective study was to compare the diagnostic value of four different imaging methods—computed tomography (CT), magnetic resonance (MR) imaging, ultrasonography (US), and 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT—and their combined use for preoperative detection of cervical nodal metastases in head and neck(More)
OBJECTIVE We examined the incidence of nodal involvement and attempted to determine the predictive factors for central compartment lymph node (LN) metastasis in thyroid papillary microcarcinoma (PMC). STUDY DESIGN Retrospective chart review. METHODS We undertook a retrospective study of 52 patients treated between January 2000 and December 2005 for PMC(More)
Ever since Kitai first performed fluorescent navigation of sentinel lymph nodes (SLNs) using indocyanine green (ICG) dye with a charge-couple device and light emitting diodes, the intraoperative use of near infrared fluorescence has served a critical role in increasing our understanding in various fields of surgical oncology. Here the authors review the(More)
OBJECTIVE This study investigated whether preoperative (18)fluorine-fluorodeoxyglucose positron emission tomography-computed tomography (PET-CT) scanning improved the diagnosis of retropharyngeal lymph node (RPLN) metastasis in patients with head and neck squamous cell carcinoma (HNSCC) relative to conventional imaging alone. STUDY DESIGN Case series with(More)
To compare the diagnostic performance of ultrasound, contrast-enhanced computed tomography (CT) and 18F-FDG positron emission tomography (PET)/CT for detecting recurrent differentiated thyroid cancer in the neck. Twenty patients who had undergone previous surgery for differentiated thyroid cancer (19 papillary carcinomas; 1 medullary carcinoma) and(More)
OBJECTIVE Microsatellite alterations, especially those that cause loss of heterozygosity (LOH), have recently been postulated as a novel mechanism of carcinogenesis and a useful prognostic factor in many kinds of malignant tumors. However, few studies have focused on a specific site, hypopharynx. The aim of this study was to evaluate the relationship(More)
OBJECTIVE To evaluate the risk of the facial nerve injury during operations for chronic otitis media without cholesteatoma by analysis of the intraoperative findings of the facial canal dehiscence. METHODS We retrospectively reviewed operative findings of 152 patients who underwent tympanoplasty with mastoidectomy for chronic otitis media. We examined(More)
Primary tuberculous otitis media of which infection focus cannot be found elsewhere in the body is a rare disease. Route of the infection has been hypothesized as Eustachian tube or external auditory canal with tympanic membrane perforation but it is hard to ascertain in the patient. We present a case of an 8-year-old child who suffered chronic otorrhea(More)
The aim of this study was to determine the effect of different volumes of contrast material with and without a saline chaser on tissue enhancement in multidetector row CT (MDCT) of the head and neck. In a blind prospective fashion, 120 patients were randomized into the following four groups: group 1, 80 ml contrast material administered at a flow rate of(More)
PURPOSE The purpose of this study was to assess the prevalence of incidental thyroid nodules (ITN) found on computed tomography (CT) of the neck and to determine whether CT characteristics could distinguish malignant from benign thyroid lesions. MATERIALS AND METHODS We retrospectively reviewed CT scans in 734 patients without known thyroid disease (384(More)