• 대한치과마취과학회:학술대회논문집
• /
• 대한치과마취과학회 2003년도 제3차 학술대회
• /
• pp.55-55
• /
• 2003

• 대한치과의사협회지
• /
• 제18권5호통권134호
• /
• pp.343-347
• /
• 1980

A case of 35-year-man with a rhabdomyosarcoma in the mandible has been presented. Chief complaints are dull sensation and growing mass at the area of the right mandible. In order to make diagnosis, roentgenograms were taken which revealed some sort of radiopaque and punched appearane at the area from right body to angle of the mandible, and biopsy was made, by which rhabdomyosarcoma was observed. The author treated this patient in terms of hemimandiblectomy, neck dissection and resin-made mandible implantation, and has observed this patient for two and half years after operation. The author satisfy that this patient has been recovered.

• 대한치과의사협회지
• /
• 제50권12호
• /
• pp.727-731
• /
• 2012

An ulcer is defined as loss of epithelium. Although many oral ulcers have similar clinical appearances, their etiologies encompass many disorders, including trauma, infection, immunologic disease, and malignant oral cancer. Oral squamous cell carcinoma(SCC) occupying about 90% of oral cancer, usually manifests as unhealed ulcer over 2 weeks. Oral SCC can metastasize to the cervical neck lymph node, and therefore the surgical therapeutic modality for oral SCC could encompass the neck node dissection as well as wide excision for primary lesions, which should leave the post-operative complication of functional damage like dysphagia and facial deformity. Therefore, it is important to discriminate oral SCC from other ulcerative conditions to make a prompt management. The knowledge for the pathogenesis of the ulcerative lesions could help the clinicians to understand the differences of clinical features and to practice an appropriate therapeutics.

• 대한후두음성언어의학회지
• /
• 제26권1호
• /
• pp.13-15
• /
• 2015

Intraoperative neuromonitoring of thyroid surgery has gained universal validity to help in nerve identification, safe nerve dissection, and prediction of postoperative vocal cord function. In this article, standard intraoperative neuromonitoring procedure, interpretation about loss of signal, and the indications covered by health insurance will be described.

• Journal of Chest Surgery
• /
• 제53권4호
• /
• pp.191-199
• /
• 2020

Surgeons recommend dissecting lymph nodes in the thorax, abdomen, and neck during surgery for esophageal cancer because of the possibility of metastasis to the lymph nodes in those areas through the lymphatic plexus of the esophageal submucosal layer. Extensive lymph node dissection is essential for accurate staging and is thought to improve survival. However, it can result in several complications, including chyle leakage, which refers to continuous lymphatic fluid leakage and can occur in the thorax, abdomen, and neck. Malnutrition, fluid imbalance, and immune compromise may result from chyle leakage, which can be potentially life-threatening if it persists. Therefore, various treatment methods, including conservative treatment, pharmacological treatment such as octreotide infusion, and interventions such as thoracic duct embolization and surgical thoracic duct ligation, have been applied. In this article, the risk factors, diagnosis, and treatment methods of chyle leakage after esophagectomy are reviewed.

• Anatomy and Cell Biology
• /
• 제51권4호
• /
• pp.305-308
• /
• 2018

Anatomical variations of the sternocleidomastoid muscle (SCM) have been observed to occupy multiple origins and insertion points and have supernumerary heads, sometimes varying in thickness. During routine dissection, a SCM was observed to have six distinct insertions that interface with the course of the superior nuchal line, ending at the midline, bilaterally. This variation was also seen to receive innervation from the accessory nerve as well as the great auricular nerve. To our knowledge, this variant of supernumerary insertions and nerve innervations has not yet been reported. These variants may pose as problematic during surgical approaches to the upper neck and occiput, and should thus be appreciated by the clinician. Herein we discuss the case report, possible embryological origins, and the clinical significance of the observed variant SCM.

• Clinical Endoscopy
• /
• 제57권5호
• /
• pp.559-570
• /
• 2024

The literature pertaining to surveillance following treatment for esophageal squamous cell carcinoma (SCC) was reviewed and summarized, encompassing the current status and future perspectives. Analysis of the standardized mortality and incidence ratios for these cancers indicates an elevated risk of cancer in the oral cavity, pharynx, larynx, and lungs among patients with esophageal SCC compared to the general population. To enhance the efficacy of surveillance for these metachronous cancers, risk stratification is needed. Various factors, including multiple Lugol-voiding lesions, multiple foci of dilated vascular areas, young age, and high mean corpuscular volume, have been identified as predictors of metachronous SCCs. Current practice involves stratifying the risk of metachronous esophageal and head/neck SCCs based on the presence of multiple Lugol-voiding lesions. Endoscopic surveillance, scheduled 6-12 months post-endoscopic resection, has demonstrated effectiveness, with over 90% of metachronous esophageal SCCs treatable through minimally invasive modalities. Narrow-band imaging emerges as the preferred surveillance method for esophageal and head/neck SCC based on comparative studies of various imaging techniques. Innovative approaches, such as artificial intelligence-assisted detection systems and radiofrequency ablation of high-risk background mucosa, may improve outcomes in patients following endoscopic resection.

• 대한두경부종양학회지
• /
• 제2권1호
• /
• pp.23-31
• /
• 1986

During the past 14years 267 patients presented with a lump in the neck proven to be metastatic cancer histologically. In most cases the primary site was discovered by thorough physical examination, E.U.A.(examination under anesthesia) and radiodiagnostic studies. However in 31 cases complete diagnostic evaluation failed to reveal the primary site. This paper discusses the characteristics of this group of patients in terms of the frequency of the ultimately discovered primary sites, policies for diagnosis, methods of management, and the ultimate prognosis for such cases in Korea. The male: female ratio was 6.8:1 and 84 % of all cases occurred in the $51{\sim)70$ age group. The majority of these cancers were epidermoid carcinomas(67.7%) and 22 of the 31(71 %) were Stage IV lesinos(17 N3A lesions and 5 N3B lesions). Surgical management was employed in 7 cases only, and in 5 cases this was combined with rediotherapy, chemotherapy, or both. Nevertheless, the only patients who survived disease-free for two years or more (one for over 5 years) were two patients in this management group. None of the patients treated by radiotherapy or chemotherapy of a combination of these two modalities survived. Occult primary sites were eventually discovered in 5 of the 31 cases, two in the nasopharynx, and one each in the base of tongue, pyrifrom sinus, middle ear. Of the 21 cases with epidermoid carcinoma which presented in the neck, 2 are free of disease for 3years or more. Of those who underwent radical surgery two of five survived. This study thus confirms the principle enunciated by MacComb in 1972 that surgical treatment in the form of radical neck dissection is the cornerstone of management whenever feasible.

• 대한기관식도과학회지
• /
• 제3권2호
• /
• pp.287-292
• /
• 1997

We report 22 cases of well -differentiated thyroid carcinoma infiltrating the upper airway tract. This retrospective study was undertaken to evaluate the prognosis md to determine optimal therapy for thyroid carcinoma adhering to or invading the trachea or larynx from 1984.3 to 1996.12. The treatment was individualized depending on the extent of the cancer. There were 12 cases dissected free by an laryngotracheal shaving, 7 cases removed by an tracheal resection with end to end anastomosis, 3 cases removed by an total laryngectomy. In all of these cases, we performed a total thyroidectomy with an accompanying neck dissection. There were no major complications during the operation. Over the 5-years observation period, 11 patients are alive without a sign of recurrence, 4 Patients are alive with recurrence, 7 died of thyroid carcinoma; 2 of 12 in an laryngotracheal shaving cases, 2 of 7 in an tracheal resection with end to end anastomosis case, 3 of 3 in an total laryngectomy case. The result showed an radical operation for thyroid carcinoma invading the laryngotrachea improves the survival rate, but limits improving the cure rate, and the invasion of the thrchea or larynx must be treated whenever possible by an total resection followed by radioiodine and external beam radiation.

• 대한두경부종양학회지
• /
• 제40권1호
• /
• pp.37-41
• /
• 2024

Carcinoma ex pleomorphic adenoma is an uncommon malignant salivary gland tumor that arises from a long-standing pleomorphic adenoma. The carcinomatous component of carcinoma ex pleomorphic adenoma can possess virtually any histologic subtype of salivary gland cancer. We experienced a case of a 61-year-old patient who presented with a right parotid mass that was initially palpated 20 years ago, with a sudden increase in size in the last few months. Radiological and cytological findings from fine needle aspiration biopsy could not exclude malignancy. Total parotidectomy and selective neck dissection were performed for treatment, and carcinoma ex pleomorphic adenoma with mixed carcinoma components of salivary duct carcinoma and myoepithelial carcinoma was diagnosed. After receiving postoperative radiation of 6000 cGy over 6 weeks, there has been no recurrence up to the 18-month follow-up. We report this rare case of carcinoma ex pleomorphic adenoma with mixed malignancy subtypes, accompanied by a review of literature.