• Korean Journal of Head & Neck Oncology
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• v.18 no.2
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• pp.219-222
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• 2002

Malignant glomus tumor is a very rare disease originating from the paraganglia system through the body. Glomus tumor, also known as paraganglioma, usually are considered benign, and arises in a variety of head and neck locations, most of which include the carotid body, the vagus nerve, and the jugulotympanic area. The most widely accepted management of benign glomus tumor is surgical extiration. Here, we report a case of recurrent laryngeal glomus tumor which is proven malignant and metastatic to the brain and the lungs. We have treated the patient with combination chemotherapy and radiation to the brain, the result of which is partial response in terms of decreased size of metastatic lung lesions.

• Korean Journal of Bronchoesophagology
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• v.4 no.2
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• pp.240-243
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• 1998

Subcutaneous emphysema is an unusual and rarely reported complication of tonsillectomy. The more commen complications are hemorrhage, infection and following anesthesia, aspiration, cardiac arrhythmia, and laryngeal trauma can occur. Posttonsillectomy subcutaneous emphysema results directly from the introduction of air into the tonsillar bed either during the surgical procedure itself or in the postoperative period. This condition is generally benign and self limiting and usually requires treatment only for the primary respiratory disease. In this report, we describe a 40-year-old female patient in whom subcutaneous emphysema developed shortly after tonsillectomy. She was observed for 5 days, at which point subcutaneous emphysema was seen on the follow up soft tissue neck X-ray to disappeared.

• Korean Journal of Bronchoesophagology
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• v.9 no.2
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• pp.74-77
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• 2003

Pyogenic granuloma is very uncommon disease. It is a benign, elevated, and capillary-rich lesion occupying on the skin and mucous membranes, and is a reactive lesion, an overgrowth of granulation tissue. And this lesion may grow rapidly and can recur frequently. Pyogenic granuloma usually occurs on the lip, tongue, oral mucosa, and nasal mucosa. But, pyogenic granuloma of vocal cords is very rare. Recently, we experienced a case of pyogenic granuloma of a 48-year-old man who had been presented with hoarseness for 3 months. He was diagnosed pyogenic granuloma after laryngeal microscopic surgery. So we report this rare case with review of literatures.

• Speech Sciences
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• v.5 no.1
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• pp.151-165
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• 1999

This paper describes a series of researches to diagnose vocal diseases using the statistical method and the acoustic signal analysis method. Speech materials are collected at the hospital. Using the pathological database, the basic parameters for the diagnosis are obtained. Based on the statistical characteristics of the parameters, valid parameters are chosen and those are used to diagnose the pathological speech signal. Cepstrum is used to extract parameters which represents characteristics of pathological speech. 3 layered neural network is used to train and classify pathological speech into normal, benign and malignant case.

• Korean Journal of Head & Neck Oncology
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• v.32 no.1
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• pp.49-52
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• 2016

The lobular capillary hemangioma (LCH) was previously known to pyogenic granuloma and is benign vascular lesion which grows rapidly on skin and mucosa. It arises from whole body, but oral and nasal cavities are most predilection sites in the head and neck area. The laryngeal LCH looks like a granulomatous lesion of posterior glottis and its common etiology are tracheal intubation and laryngopharyngeal reflux disease etc. The LCH in larynx can cause blood tinged sputum and lump sense. The lesions refractory to medical therapy or causing dyspnea may require surgical excision. A 74-year-old man who presented gradually aggravated dyspnea, lump sensation and hoarseness of one month came to our hospital. The stroboscopic examination revealed large well-margined glottic mass. It was excised with $CO_2$ laser and finally diagnosed as LCH. We present a rare unique case of glottic LCH with a review of literatures.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.30 no.2
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• pp.101-106
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• 2019

Background and Objectives Reinke's edema is a benign vocal fold disease caused by an edematous laryngeal superficial layer of lamina propria. The first line treatment is cessation of smoking and laryngeal microsurgery. The aim of the study is to evaluate the feasibility and efficacy of percutaneous steroid injection via cricothyroid membrane in patients with Reinke's edema. Materials and Method From Jan 2010 to July 2018, 33 Patients with Reinke's edema managed by vocal fold steroid injection via the cricothyroid membrane were included in this study. We compared medical records of laryngoscopy, stroboscopy and Multi-Dimensional Voice Program analysis at pre-treatment and post-treatment. Subjective voice improvement was evaluated using Voice Handicap Index-30 (VHI-30). Results 75.7% of the patients showed partial response and 6.06% showed complete response. 93.94% were present smokers and only 4 patients ceased smoking after the treatment. In acoustic analysis, the pre-treatment mean value of jitter, shimmer, and noise to harmonic ratio was 2.30±3.21, 9.34±10.37, 1.11±2.90 each. The post-treatment value was 2.20±1.89, 6.96±5.30, 0.20±0.09 respectively and none of the parameters were statistically significant. For subjective symptom improvement, 25 (75.8%) patients showed a better score on post-treatment VHI-30 compared to pre-treatment. Conclusion According to our study, steroid injection is a relatively safe and effective procedure for patients with Reinke's edema. A vocal fold steroid injection via the cricothyroid membrane can be an alternative treatment option for those who are not able to undergo conventional laryngeal microscopic surgery, however cessation of smoking is necessary for effective treatment.

• Korean Journal of Bronchoesophagology
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• v.16 no.2
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• pp.145-148
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• 2010

Background: Laryngeal papillomatosis, which is cased by human papillomavirus, is the most common benign neoplasm of the larynx. However, the prognosis of this disease remains really unpredictable. The aim of this paper is to determine whether any clinical features at the time of diagnosis could predict its course. Material and Method: Eighty-six patients treated at our institution during the last 20 years were analyzed retrospectively. All patients had microsurgery under general anesthesia. All patients' follow-up period was more than 1 year. We divided the patients into 1) Juvenile versus adult group based on their age 20, 2) single surgical method with laser versus dual surgical method with laser and microdebrider group, and 3) single subsite versus multiple subsites group. And we compared the therapeutic outcome. Results: The recurrence rate was 100% (15 patients) in the JP group and 56% (40 patients) in the AP group. Juvenile versus adult group was the only independent prognostic factor by univariate, and multivariate analysis. Microdebrider resection technique and multiple subsites were not associated with treatment result. Time period from the first surgery to recurrence detection was different statistically only for the age group. The number of surgery in the JP group ranged from 1 to 31 (mean 8.8). In the AP group the number of surgery ranged from 1 to 25 (mean 3.7). It was statistically different. Conclusion: Prognosis for the laryngeal papillomatosis remains unpredictable. Only patients' age was the only independent prognostic factor.

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.32 no.1
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• pp.39-42
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• 2021

Granuloma is an uncommon benign disease that develops in the process of wound healing. Pharyngeal or laryngeal granuloma can be associated with gastric reflux, mechanical injury or trauma including intubation, voice abuse, or foreign body. 50-year-old female was transferred to our institute with a huge mass occupying the upper aerodigestive tract causing dysphagia. The patient has been suffering from a brain hemorrhage for several months and was kept in bed due to the quadriplegia with stuporous mental status, and was tracheotomized. On examination, the whole oropharynx and hypopharynx was covered by a smooth-surfaced soft big diffuse granular mass, which extended down to the upper trachea through the larynx. The huge granuloma was successfully removed with surgery and was found to have a pedunculating stalk on the oropharyngeal posterior wall with a small mucosal defect, suggestive of the origin of the mass. The defect was closed primarily after the cauterization. The patient is now followed up regularly without any recurrence of the disease.

• Korean Journal of Head & Neck Oncology
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• v.11 no.2
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• pp.119-124
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• 1995

Traditionally, wound drainage after thyroid or parathyroid surgery has been widely used to prevent airway obstruction due to accumulation of hematoma or seroma within the paratracheal dead space. Recently, however, the routine use of drains after thyroid or parathyroid surgery has become a matter of controversy. To determine whether the rouine use of drains after thyroid or parathyroid surgery is warranted, a prospective study on the complications after various types of thyroid or parathyroid surgery without wound drains was conducted. Three hunded sixty-six consecutive patients underwent thyroid or parathyorid surgeries by one surgeon from January through December 1994 were included in this study. Of these, only 38 patients (10.4%) required the wound drains. Indications for drainage included the patients with a large dead space(n=9) or wet operative field at the conclusion of surgery(n=11), and patients with radical neck disection(n=18). In the remaining 328 patients(89.6%), the wounds were closed without drains after thyroid lobectomy and isthmusectomy(n=226), bilateral subtotal thyroidectomy(n=21), total or near-total thyroidectomy(n=62), isthmusectomy(n=9) and parathyroid surgery(n=l0). Histologic findings revealed benign tumors in 214(65.2%), carcinoma in 89(27.1%), Graves' disease in 15(4.7%), hyperparathyroidism in 7(2.1%) and parathyroid cyst in 3(0.9%). Among the 328 patients without drain used, wound related complications were seen in only 15 patients(4.6%); 12 patients with seroma and 3 patients with hematoma. All but one complications could be controlled by two or three aspirations, and the remaining one patient required re-exploration. There were no instances of laryngeal nerve palsy or wound infection. The mean length of hospital stay after surgery was 2.8 days with a range of 1 to 11 days. These results support the routine use of drains is not warranted in most thyroid or parathyroid surgeries.

• Journal of Chest Surgery
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• v.31 no.1
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• pp.40-45
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• 1998

Recently, video-assisted thoracoscopic surgery for mediastinal lesions has been considered a new effective therapeutic method. From March, 1992 to April, 1997, 33 cases of video assisted thoracoscopic surgery for mediastinal lesions were performed. Gender distribution was 16 males and 17 females. Average age was 42 years old(ranged from 14 to 69). The locations of lesions were anterior mediastinum in 14 cases, middle mediastinum in 5 cases, posterior mediastinum in 11 cases, and superior mediastinum in 3 cases. These included 9 neurilemmomas, 5 benign cystic teratoma, 4 pericardial cysts, 2 ganglioneuroma, 2 thymus, 2 thymic cyst, 1 thymoma, 2 esophageal leiomyomas, 1 dermoid cyst, 1 lipoma, 1 malignant lymphoma, 1 bronchogenic cyst, 1 pericardial effusion, and 1 Boerhaave's disease with empyema. Working window was needed in 6 cases. We converted to open thoracotomy in 6 cases. Reasons of convertion to open thoracotomy were large sized mass(1), severe adhesion(3), and difficult location to approach(2). The average operation time was 116min($\pm$56 min). The average chest tube drainage time was 4.7days. The average hospital stay was 8.7 days. Operative complications were atelectasis(2), empyema with mediastinitis(1), recurrent laryngeal nerve palsy(1), and plenic nerve palsy(1). In conclusion, VATS for mediastinal lesions were performed with shorter operation time and hospital stay, and lesser complications and pain than those of conventional thoracotomy.