Chang Ki Yeo

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OBJECTIVE To determine the 9 month period effect of botulinum toxin A (BoNT-A) injection into the salivary gland in children with neurologic disorders and sialorrhea by qualified parent/caregiver-administered questionnaires. METHOD A total of 17 patients (age 7.6±4.24 years) were enrolled in this study. The degree of sialorrhea was assessed at the(More)
BACKGROUND The purpose of this study was to evaluate the feasibility of ultrasound-guided core needle biopsy (CNB) performed by a surgeon for mass lesions in the thyroid and lymph nodes. METHODS A single surgeon performed 30 office-based ultrasound-guided CNB procedures for mass lesions in the thyroid and lymph nodes that were previously biopsied by(More)
OBJECTIVE To review our 15-year experience with pyriform sinus fistula (PSF) in a single institution for a better understanding of the disease, pertaining especially to symptom onset at different ages. METHODS Medical records were reviewed for all 21 PSF patients presenting between 1998 and 2012. Patients were then divided into pediatric (≤ 15 years old)(More)
The purpose of this study was to determine the incidence of an anterior extension of the parotid gland, such as an accessory parotid gland (APG) or facial process (FP) and to evaluate its characteristics on computed tomography (CT) scans. We reviewed CT scans of 1,600 parotid glands from 800 patients. An APG on CT was defined as a soft-tissue mass of the(More)
Schwannoma tumors in esophagus are extremely rare and clinically present as dysphagia in most reported cases. Because of their rarity and need for histopathological confirmation using immunohistochemistry, an erroneous diagnostic and therapeutic approach can be adopted. A 36-year-old woman presented at the hospital with complaints of an anterior neck mass.(More)
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