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BACKGROUND Extrathyroidal extension is an important factor to determine the extent of thyroid surgery. The aim of the present study was to evaluate the usefulness of high-resolution ultrasound (US) for predicting the extrathyroidal extension of papillary thyroid microcarcinoma (PTMC). METHODS This study included a total of 221 PTMCs in 181 patients. PTMC(More)
OBJECTIVE The purpose of this study was to compare the results with three sets of guidelines for fine-needle aspiration biopsy of thyroid nodules. MATERIALS AND METHODS A total of 1,398 nodules confirmed with fine-needle aspiration biopsy or surgery were included in the study. We compared the diagnostic value of three sets of guidelines for ultrasound(More)
BACKGROUND Preoperative prediction of lateral lymph node metastasis (LNM) is important to prevent recurrence; however, there are few published data in predicting factors of lateral LNM before surgery. The present study investigated the factors affecting LNM in patients with papillary thyroid microcarcinoma (PTMC). METHODS A retrospective cohort study was(More)
OBJECTIVE The purpose of this study was to compare the diagnostic accuracy of ultrasound imaging with that of CT in the preoperative evaluation of primary tumors and cervical lymph nodes in patients with papillary thyroid carcinoma and to determine whether CT has greater diagnostic value than ultrasound alone in the care of these patients. MATERIALS AND(More)
BACKGROUND Several studies report that detection of thyroglobulin (Tg) in fine-needle aspiration (FNA) biopsy washout fluid from lymph nodes identifies recurrences/metastases of differentiated papillary thyroid cancer (DPTC) in the neck with higher sensitivity and specificity than fine-needle aspiration cytology (FNAC). However, the diagnostic FNA-Tg cutoff(More)
OBJECTIVE The objective of our study was to investigate interobserver agreement for the diagnosis of malignant thyroid nodules using conventional B-mode ultrasound and real-time freehand ultrasound elastography. MATERIALS AND METHODS Between December 2007 and February 2008, 45 patients (age range, 19-73 years; mean age +/- SD, 45.0 +/- 12.2 years) with 52(More)
OBJECTIVE The purpose of this study is to assess the utility of sonographic detection and the role of sonography-guided fine-needle aspiration biopsy (FNAB) in thyroid carcinomas that appear only as microcalcifications without an associated mass. CONCLUSION This study covers 11 cases in which the only abnormal finding suggesting thyroid cancer was(More)
STUDY DESIGN Retrospective cohort study using national health insurance data. OBJECTIVE To provide a longitudinal reoperation rate after surgery for lumbar herniated intervertebral disc (HIVD) disease, and to compare the reoperation rates of surgical methods. SUMMARY OF BACKGROUND DATA Herniated intervertebral disc disease is the most common cause of(More)
OBJECTIVE The purpose of our study was to investigate ultrasound criteria to determine the most accurate criterion to differentiate metastatic from benign lymph nodes on ultrasound and to evaluate the frequency of metastasis according to the cytology results. MATERIALS AND METHODS One hundred eighteen consecutive patients with thyroid malignancy underwent(More)
Ultrasonographically (US) guided core needle biopsy is currently recognized as a reliable alternative to surgical biopsy for the histopathologic diagnosis of breast lesions. However, despite advances in biopsy devices and techniques, false-negative diagnoses are unavoidable and may delay the diagnosis and treatment of breast cancer. The most common reasons(More)