• Korean Journal of Head & Neck Oncology
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• v.32 no.2
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• pp.5-8
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• 2016

Background and Objectives: The aim of this study was to evaluate the safety and the feasibility of thyroidectomy for aged (${\geq}75$ years old) thyroid cancer by reviewing postoperative morbidity and pathologic characteristics. Materials & Methods: The clinical records of patients submitted to thyroid operation between 2014 and 2015 with histopathological diagnosis of thyroid cancer were analyzed. Clinical variables included age, gender, preoperative symptom, final pathology, length of stay, comorbidities, American Society of Anesthesiologists score, postoperative complications, and mortality. Results: There were 30 patients aged more than 75 years old, and only one patient passed over with postoperative pneumonia. There were 8 male and 22 female patients. Half of the patients presented with symptoms such as palpable mass (33.3%), voice change (6.7%) and dyspnea (6.7%). The pathologic diagnosis was thyroid cancer in all cases. The median postoperative hospitalization time was 4 days. There was one perioperative mortality case observed in this study. Conclusion: Thyroid surgery in patients 75 years or older can be performed except extensive surgical resection. Aggressive histology and extent of surgery may be an important factor of perioperative mortality and morbidity.

• Journal of Clinical Otolaryngology Head and Neck Surgery
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• v.29 no.2
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• pp.316-320
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• 2018

Esophageal diverticulum is very rare disease. Since it usually has no symptoms, it is hard to find and diagnose. Moreover, if the diverticulum is located nearly to thyroid gland, surgeons sometimes misdiagnose as a thyroid nodule. Here, we represent our case which has papillary thyroid cancer and esophageal diverticulum together. In this case, we experienced the surgical procedure and postoperative complications of the esophageal diverticulum. Even though esophageal diverticulum was in preoperative computed tomography and ultrasound, it was neglected before the surgery so that found during the operation. The purpose of this study was to know the preoperative radiological findings of the esophageal diverticulum and to find out what to be aware of during surgery and how to manage the complications after surgery.

• Phonetics and Speech Sciences
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• v.12 no.2
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• pp.73-80
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• 2020

Breathing is the voice's driving force and also acts as a regulator of larynx function and efficiency. Respiratory distress is a side effect of general anesthesia in thyroid surgery. Therefore, this study's objective was to provide practical and complementary information for voice recovery after thyroid surgery, based on aerodynamic evaluation pre- and post-thyroidectomy. From May 2014 to July 2015, aerodynamic evaluations were performed on 34 female patients diagnosed with thyroid papillary cancer one week before surgery (PRE), one month after surgery (P1), and three months after surgery (P3). The Phonatory Aerodynamic System (model 6600, KayPENTAX, USA) was employed for this purpose, and a total of 29 analysis parameters were selected. The results showed statistically significant differences in peak expiratory airflow (p=0.004), mean pitch (p<0.01), expiration airflow duration (p=0.001), and expiratory volume (p=0.018), based on time factors. In the comparison of time factors, peak expiratory airflow and mean pitch parameters were different in PRE-P1 and PRE-P3. Expiration airflow duration and expiratory volume parameters were different in PRE-P3 and P1-P3. The interaction effect of time and surgical range was significant only for expiratory volume (p=0.024). Female patients who undergo thyroidectomy require post-operative breathing training, and exhalation improvement is considered to reflect a positive lifestyle after surgery.

• Korean Journal of Head & Neck Oncology
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• v.28 no.2
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• pp.143-145
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• 2012

Follicular thyroid cancer(FTC) accounts for about 10-15% of thyroid cancer. Distant metastasis is common, usually to lung, bone and brain. 71-years-old man visited neurosurgery outpatient department. He complained of recent 6kg weight loss, left upper extremity pain with weakness and back pain. The radiologic findings showed multiple bone metastasis including thoracic spine and left scapular resulting from FTC. There was a probable brain metastatic lesion on right temporal fossa. The core biopsy of thyroid and thoracic spine(T11) confirmed metastatic follicular carcinoma. Radioactive iodine therapy and radiotherapy was done following total thyroidectomy. We report a unique case of multiple bone metastasis from follicular carcinoma of thyroid with literature review.

• Korean Journal of Head & Neck Oncology
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• v.31 no.2
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• pp.70-73
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• 2015

Acute suppurative thyroiditis is rare, infectious thyroid disorder because the thyroid gland is resistant to infection. We report a 26-year-old man with acute suppurative thyroiditis due to a pyriform sinus fistula. He presented with anterior neck swelling and tenderness for 2 weeks. Antibiotic treatment failed to improve his symptoms and signs. Diagnosis was made by bariums studies, computed tomography scan and endoscopic examination. The pyriform siuns fistula was successfully treated by chemical cauterization, partial thyroidectomy and ligation of fistula tract.

• Korean Journal of Veterinary Research
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• v.19 no.2
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• pp.107-113
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• 1979

In the chickens removed the left thyroid gland or administrated with thiouracil, fatty liver (FL) and fatty liver-hemorrhagic syndrome (FLHS) were induced within five weeks after treatment. FL was observed in all of the thyroidectomized layer and broiler hens, and the occurrence of FLHS was higher in rate at the fifth week than that at the third week after removal. FL and FLHS were observed in the thiouracil-administrated broiler hens, but the rate of incidence was appeared to be lower in the thiouracil-administrated hens than in the thyroidectomized chickens. It was suggested that hypothyoidism could be an important factor inducing FLHS.

• Korean Journal of Head & Neck Oncology
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• v.26 no.2
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• pp.221-224
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• 2010

Papillary thyroid carcinoma frequently invades the lymph node, trachea, esophagus and perithyroid tissue. However, direct extension to posterior pharyngeal area is known to be rare. A 64-year-old male was referred to our clinic presenting as posterior pharyngeal mass during gastrofiberscopy. The neck CT scan showed soft tissue mass in retropharynx and lymph node in right level III with calcifications. We performed the total thyroidectomy with selective(level II, III, IV) and anterior compartment neck dissection. In operative findings, the right thyroid mass were connected to the retropharynx through the posterior portion of inferior constrictor muscle. Histopathologic findings revealed the papillary thyroid carcinoma extended to retropharynx. We report a unique case with a literature review.

• Journal of Korean Neurosurgical Society
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• v.45 no.3
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• pp.188-191
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• 2009

The presence of distant metastases from differentiated thyroid carcinoma decreases the 10-year survival rates of patients by 50%. This is a report of a 61-year-old female with follicular thyroid carcinoma who presented initially with low back pain. 2-deoxy-2-[18F] fluoro-D-glucose whole-body positron emission tomography/computed tomography (PET/CT) demonstrated a hypointensity lesion in the left thyroid gland with malignant uptake in L1 vertebra and magnetic resonance images revealed paravertebral and epidural extension of mass in L1 vertebra. After thyroidectomy, histopathological study showed a follicular carcinoma. We performed L1 total en bloc spondylectomy with expandable cage for long-term local control. The technical details of total en bloc spondylectomy in follicular carcinoma are described herein.

• Korean Journal of Bronchoesophagology
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• v.5 no.2
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• pp.212-216
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• 1999

Renal cell carcinoma is the third most common metastatic tumor to the bone and soft tissues of the head and neck. The common sites of metastatic renal cell carcinoma in head and neck region are nasal cavity, paranasal sinuses, oral mucosa, gingiva, tongue, palate, lip as the favored site. The present paper deals with one patient with metachronous oral tongue, nasal cavity and suspicious brain metastases after 2 years of renal cell carcinoma nephrectomy. Also, the patient had history of total thyroidectomy for thyroid follicular carcinoma. Total excision of nasal cavity and tongue mass were performed. Therapeutic aspects are briefly reviewed in literature.

• The Korean Journal of Nuclear Medicine
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• v.36 no.1
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• pp.87-89
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• 2002

A 30 year-old female patient with papillary thyroid carcinoma received her fifth radioiodine ablation therapy after the subtotal thyroidectomy. The scan, which was peformed one week after the last therapy, revealed residual uptake in the thyroid bed and uptake in the anterior mediastinum suggesting metastasis. However, further evaluation of the thorax with chest CT and camera-based FDG PET confirmed normal thymus without metastatic focus. Occasionally thymus remains intact in adult and has avidity for I-131 and FDG. Therefore, normal thymus (instead of metastasis) should be considered in patients with well differentiated thyroid carcinoma and anterior mediastinal radioiodine uptake.