• Maxillofacial Plastic and Reconstructive Surgery
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• v.34 no.2
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• pp.127-132
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• 2012

Maxillary sinus hypoplasia (MSH) is an uncommon clinical disease that represents a persistent decrease in sinus volume, which results from centripetal reaction of the maxillary sinus walls. We present a unilateral MSH case of a 46-year-old male patient with a history of nasal obstruction and headache for 3 years. He had a history of Caldwell Luc operation (CLOP) 10 years ago, and no enophthalmos, hypoglobus or facial asymmetry. After confirming the right diagnosis of MSH, filled with bone in the computed tomography scan, hyperplastic bone was removed by the CLOP approach. The uncinate process and infundibular passage were found to be degenerated and ostium was also examined to be obstructed under endoscopic confirmation. MSH can be mistaken for chronic maxillary sinusitis because of the plain x-ray appearance, so the aggravated state of MSH can be the result of surgeon's misjudgment. With additional literature reviews, this rare experience is first introduced in our Korean oral and maxillofacial surgery field.

• Journal of Gastric Cancer
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• v.4 no.2
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• pp.95-108
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• 2004

This nationwide survey was conducted to evaluate the current status of clinical practice for gastric cancer patients in Korea. The Information Committee of the Korean Gastric Cancer Association (KGCA) sent questionnaires containing 45 items about the preoperative diagnosis, medical and surgical treatment, and postoperative follow-up for gastric cancer patients to all 298 KGCA members in 108 institutes. Response rates were $32.6\%$ (97/298) for individuals and $59.3\%$ (64/108) for institutes. Most university hospitals responded (response rate of university hospitals: $71.6\%$, 48/67). The preoperative staging work up was performed primarily by abdominal CT, followed by bone scans, abdominal ultrasound, endoscopic ultrasound, and so on. Gastric cancer patients with stages II, III, and IV usually received adjuvant chemotherapy after a curative operation. About half of the surgeons regarded 2 cm as a safe resection margin in early gastric cancer and 5 cm in advanced gastric cancer. More than half of surgeons usually performed a D2 lymph node dissection in early gastric cancer and D2+$\alpha$ lymph node dissection in advanced gastric cancer. About $20\%$ of surgeons performed less invasive surgery and/or function-preserving surgery, such as a pylorus-preserving gastrectomy, a laparoscopic wedge resection, or a laparoscopy-assisted distal gastrectomy.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1993.05a
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• pp.81-81
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• 1993

Tracheal stenosis in children are often the result of prolonged intubation and its treatment depends on the severity and extent of the involved segment. Repeated surgical endoscopic procedures may be indicated in those with mild stenoses mainly consisting of granulation tissues, However, surgical reconstruction of the airway should be performed in patients with severe, extensive stenoses composed of mature scar tissue. The senior author has successfully managed such patients with cartilage graft augmentation and tracheal resection anastomosis. This is a presentation of 9 pediatric patients with tracheal stenosis who have been successfully treated by resection anastomosis. The details of the cases and indications for this type of surgery are discussed.

• Korean Journal of Bronchoesophagology
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• v.11 no.1
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• pp.28-31
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• 2005

Granular cell tumors are relatively uncommon benign laryngeal lesions thought to originate form Schwann cells. The granular cell tumor occurs everywhere in the body, especially in the head and neck. The larynx is relatively an uncommon location, accounting for approximately 3 to $10\%$ of all reported cases. Typically the most common presenting symptom is hoarseness, with some patients also presenting stridor, hemoptysis, dysphagia, and otlagia. But the tumor may be asymptomatic and discovered only incidentally during a routine examination. The diagnosis of granular cell honor can be confirmed by histopathologically and immunocytochemical staining fer S-100 antigen. Treatment of a granular cell tumor consists of a wide local excision by the endoscopic, transoral or laryngofissure methods. Recently, CO2 laser has been used to remove granular cell tumor with clear resection margin. This article describes one such case in a 62-year-old man, followed by a brief review of the literature on this subject.

• Korean Journal of Bronchoesophagology
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• v.14 no.2
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• pp.10-16
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• 2008

Surgical resection and reanastomosis has been the treatment of choice in patients with tracheobronchial stenosis. Recent development of bronchoscopic intervention has been replacing the role of surgery in these patients. After summarizing the upto date data of bronchoscopic intervention, the proper management of tracheobronchial stenosis will be presented. Bronchoscopic intervention would be much effective when performed under rigid bron- choscopy, due to the stable patients' condition and endoscopic view. The usual method of intervention includes ballooning, Nd-YAG laser resection, bougienation, mechanical airway dilatation, stenting and photodynamic therapy. Silicone stents are very effective in patients with tracheobronchial stenosis to maintain airway patency. Bronchoscopic intervention provided immediate symptomatic relief and improved lung function in most of patients. After airway stabilization, stents were removed successfully in 2/3 of the patients at a 12-18 months post-insertion. Less than 5% of patients eventually needs surgical management. Acute complications, including excessive bleeding, pneumothorax, and pneumomediastinum develops in less than 5% of patients but managed without mortality. Stent-related late complications, such as, migration, granuloma formation, mucostasis, and restenosis are relatively high but usually controlled by follow-up bronchoscopy. In conclusion, bronchoscopic intervention, including silicone stenting could be a useful and safe method for treating tracheobronchial stenosis.

• Journal of Gastric Cancer
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• v.15 no.1
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• pp.68-73
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• 2015

Gastric cancer that mimics a submucosal tumor is rare. This rarity and the normal mucosa covering the protuberant tumor make it difficult to diagnosis with endoscopy. We report two cases of advanced gastric cancer that mimicked malignant gastrointestinal stromal tumors preoperatively. In both cases, the possibility of cancer was not completely ruled out. In the first case, a large tumor was suspected to be cancerous during surgery. Therefore, total gastrectomy with lymph node dissection was performed. In the second case, the first gross endoscopic finding was of a Borrmann type II advanced gastric cancer-like protruding mass with two ulcerous lesions invading the anterior wall of the body. Therefore, subtotal gastrectomy with lymph node dissection was performed. Consequently, delayed treatment of cancer was avoided in both cases. If differential diagnosis between malignant gastrointestinal stromal tumor and cancer is uncertain, a surgical approach should be carefully considered due to the possible risk of adenocarcinoma.

• Journal of radiological science and technology
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• v.21 no.1
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• pp.40-45
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• 1998

To determine its usefulness and safety of extracorporeal shock-wave lithotripsy in common bile duct and pancreatic duct stones, we analyzed the results of 13 patients with common bile duct stones and 6 patients with pancreatic duct stones which were removed by endoscopic procedures using the balloon or basket, who was performed the extracorporeal shock-wave lithotripsy using the ultrasonography for stone localization with a spark gap type Lithotriptor(Dernier MPL 9000, Germany). Fragmentation and complete clearance of the common bile duct and pancreatic duct stones were obtained in 19 of 19 patients(100%). Apart from transient attacks of fever in 2 of 13 patients with common bile duct stones(15%) and mild elevation of serum amylase and lipase in 2 of 6 patients with pancreatic duct stones(33%), no other serious side effects were observed. In our experiences, extracorporeal shock-wave lithotripsy is a safe and useful treatment for endoscopically unretrievable common bile duct and pancreatic duct stones.

• Journal of Chest Surgery
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• v.32 no.9
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• pp.851-854
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• 1999

Hemangioma in the esophagus is an uncommon tumor. There have only been about 30 cases reported in the world literatures. It occurs predominantly in men and although majority are asymptomatic, may cause bleeding and dysphagia. Hemangioma in the esophagus was diagnosed with a barium swallowed esophagography and endoscopy. The main treatment modes recommended are surgery and endoscopic resection. We experienced one case of cav ernous hemangioma occurring at the distal esophagus. The patient was a forty-six year old male with dysphagia and indigestion. Barium esophagogram showed a filling defect at the distal portion. Esophagoscopy showed a bluish polypoid mass. Surgical resection was per formed and the pathologic diagnosis was confirmed as cavernous hemangioma. Postoperative course was uneventful and the patient had been followed up without any problems.

• The Korean Journal of Gastroenterology
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• v.72 no.5
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• pp.262-266
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• 2018

Surgery has been the standard treatment for perforated duodenal ulcers, with mostly good results. However, the resolution of postoperative leakage after primary repair of perforated duodenal ulcer remains challenging. There are several choices for re-operation required in persistent leakage from perforated duodenal ulcers. However, many of these choices are complicated surgical procedures requiring prolonged general anesthesia that may increase the chances of morbidity and mortality. Several recent reports have demonstrated postoperative leakage after primary repair of a perforated duodenal ulcer treated with endoscopic insertion using a covered self-expandable metallic stent, with good clinical results. We report a case with postoperative leakage after primary repair of a perforated duodenal ulcer treated using a covered self-expandable metallic stent.

• Korean Journal of Head & Neck Oncology
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• v.34 no.2
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• pp.77-80
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• 2018

Subglottic cysts have been reported as a relatively rare problem of pediatrics who have a history of premature birth and period of intubation. They may cause significant upper airway obstruction and many cases require tracheostomy to airway management. Endoscopic marsupialization by microinstruments or laser has been standard primary treatment but a high recurrence rate has been reported. A 19-month-old child presented with stridor who has history of ventilation via an endotracheal intubation in the newborn period for 7 days. Radiologic examinations were performed for aggravated dyspnea symptom and subglottic cystic mass was found, then it was marsupialized at operation room and tracheostomy was done at the same time. After decannulation of tracheostomy tube, there is no recurrence of cyst nor upper airway obstruction for 29 months. We report this case with a review of literature.