• Journal of Chest Surgery
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• v.28 no.5
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• pp.518-520
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• 1995

Leiomyoma is the most common benign tumor of the esophagus,and surgical enucleation is the treatment of choice. Recently we successfully performed thoracoscopic enucleation of large esophageal leiomyoma without complication in one patient. The 46 years old male patient complained epigastric discomfort and showed a submucosal mass in lower esophagus under the endoscopic ultrasonography . During operation minimal perforation occurred, it was closed with clipping without conversion to an open procedure.The tumor size was 8cm x 3cm x 1.5cm respectively. There were less post-operative pain,minimal wound size, and early recovery time.Patient was satisfactory these outcome. These result suggest that esophageal enucleation was performed more large size benign tumor and esophageal perforation during operation was treated thoracoscopically.

• Journal of Chest Surgery
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• v.44 no.6
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• pp.458-460
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• 2011

Intramuscular hemangioma originated in chest wall is a rare benign tumor, with no relevant reports in Korea. In most cases, the tumor is discovered before the age of 30 years and it is reported that trauma operates as the initiation factor. It is essential to concern the clinical suspicion and conduct a CT scan for diagnosis. The principle of treatment is surgical excision with clear resection margin. The authors of this study report a case of surgical excision for post-traumatic intramuscular hemangioma of the chest wall with review of literature.

• Korean Journal of Head & Neck Oncology
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• v.36 no.1
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• pp.45-47
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• 2020

Tuberculosis of parotid gland is extremely rare, even in countries where tuberculosis is endemic. It can occur by systemic dissemination from a distant focus or as primary involvement. Because of the clinical and radiological similarity, parotid tumor and parotid inflammatory disease take priority over the tuberculosis of parotid when it comes to differential diagnosis. As a result, clinicians often fail to make a timely diagnosis of tuberculosis of parotid gland in patient with a slowly growing parotid mass. However, its treatment is primarily medical if the positive diagnosis is well established. We have recently experienced a case of tuberculosis of parotid gland that was considered as the benign tumor preoperatively, but which was confirmed as tuberculosis of parotid gland after extracapsular dissection. We report it with a review of literature.

• Korean Journal of Bronchoesophagology
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• v.4 no.1
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• pp.137-141
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• 1998

Pleomonhic adenoma, the most common of the benign salivary gland tumor, is called benign mixed tumor. The tumor was first described by Kaltschmied in 1725 and clinically systematized by Bilroth in 1859. Most pleomorphic adenoma arise in major salivary glands. However, their development in minor salivay glands of the oral cavity, pharynx, paranasal sinuses, and in skin and lacrimal glands is well known. The palate is the most common site of origin of pleomorphic adenoma in minor salivary gland. Recently the authors have experienced a case of the huge pleomorphic adenoma of the hard palate in a 70 years old woman. This is the report of a case with review of literature.

• Journal of Korea Multimedia Society
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• v.24 no.12
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• pp.1614-1623
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• 2021

In this paper, the purpose is evaluation of the effect of using fractal feature in machine learning based pancreatic tumor classification. We used the data that Pancreas CT series 469 case including 1995 slice of benign and 1772 slice of malignant. Feature selection is implemented from 109 feature to 7 feature by Lasso regularization. In Fractal feature, fractal dimension is obtained by box-counting method, and hurst coefficient is calculated range data of pixel value in ROI. As a result, there were significant differences in both benign and malignancies tumor. Additionally, we compared the classification performance between model without fractal feature and model with fractal feature by using support vector machine. The train model with fractal feature showed statistically significant performance in comparison with train model without fractal feature.

• The Journal of the Korean dental association
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• v.53 no.2
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• pp.143-152
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• 2015

Ultrasonography is relatively inexpensive, non-invasive imaging tool and provides real-time imaging. In addition, the images can be obtained repeatedly. But it is not widely used by dentists because it is hard to interpret and technique sensitive. Above all, ultrasonography cannot be used for hard tissue diagnosis. However, ultrasonography can be applied for diagnosis of infection, soft tissue tumor and inflammatory muscle diseases which are commonly found in dental outpatients. Generally, it shows well-defined border, hypoechoic and homogenous structure in case of benign tumor. Malignant tumor appears relatively irregular margin and heterogenous structure. Cyst represents relatively echo-free features compared with benign tumor. Although the general characteristics of abscess are similar with benign tumor, we can observe an increased vascularity and different clinical features. The purpose of this report is to present 3 cases of US images using office-based ultrasonography with their features and discuss the role of office-based ultrasound in dentistry for diagnosis of soft tissue lesions with literature review.

• Journal of Korean Neurosurgical Society
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• v.48 no.2
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• pp.139-144
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• 2010

Objective : We report our surgical experience in the treatment of 16 consecutive patients with benign craniovertebral junction (CVJ) tumor, observed from 2003 to 2008 at our department. Methods : We had treated 6 foramen magnum meningiomas, 6 cervicomedullary hemangioblastomas, 1 accessory nerve schwannoma, 1 hypoglossal nerve schwannoma, 1 C2 root schwannoma, and 1 cavernous hemangioma. Clinical results were evaluated by Karnofsky Performance Scale (KPS) and all patients underwent preoperative neuroradiological evaluation with computed tomography (CT) and magnetic resonance image (MRI). Angiography was performed in 15 patients and preoperative embolization was done in 2 patients. Results : Five far-lateral, 1 supracondylar and 10 midline suboccipital approaches were performed. Gross total removal was achieved in 15 cases (94%) and subtotal removal in 1 patient (6%). None of the patients required occipitocervical fusion. Radiological follow-up showed no recurrence in cases totally removed. Postoperative decrease of KPS scores was recorded in only 1 patient. The treatment of cervicomedullary solid hemangioblastoma presented particular issues : by preoperative embolization, we removed tumor totally without an excessive bleeding or brainstem injury. In one of foramen magnum meningioma, we carried out subtotal removal due to hard tumor consistency and encasement of neurovascular structures. Conclusion : The choice of surgical approaches and the extent of bone resection should be defined according to the location and size of individual tumors. Moreover, we emphasize that preoperative neuroradiological evaluations on presumptive tumor type could be helpful to the surgeon in tailoring the technique and providing the required exposure for different lesions, without unnecessary surgical steps.

• Archives of Reconstructive Microsurgery
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• v.1 no.1
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• pp.39-44
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• 1992

Benign peripheral nerve tumors, although infrequent, must be considered as a possible cause of pain and disability in the extremities. There are three varieties of these tumors that are of clinical importance: neurilemmomas, neurofibromas, and post-traumatic neuroma. Neurilemmomas are the most common primary solitary tumor of the peripheral nerve trunks, and are almost always benign, Neurofibromas may occur as a solitary nerve tumor, but can present as multiple lesions as in von Recklinghausen's disease. Clinically, this tumor may presents as a solitary mass in the subcutaneous tissue which is centrally located with the nerve fibers travelling through the tumor mass. Traumatic neuroma is the proliferation of nerve elements with connective tissue during the process of regeneration from severed nerves undergoing Wallerian degeration, and is therefore not a true neoplasm. A neuroma-in-countinuity is the result of partial severance of a nerve, or of a crushing or traction injury in which all or part of the epineurium and perineurium is intact. We experienced each of the three varieties. With magnification, the neurilemmoma was removed by meticulous dissection from the parent nerve preserving the normal fascicles to which it was attached. The neurofibroma was excised and the nerve was reconstructed with interposed vein graft and the neuroma-in-continuity was excised and reconstructed with sural nerve graft. We report histologic characteristics of each tumors and the methods to repair the nerve defects after tumor excision with brief discussion.

• Archives of Craniofacial Surgery
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• v.13 no.2
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• pp.151-155
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• 2012

Purpose: Basal cell adenoma of the salivary gland is an uncommon type of monomorphic adenoma. The most frequent location is parotid gland. It usually appears as a firm, mobile and slow-growing mass. Originally the term "basal cell adenoma" is described as a benign salivary gland tumor comprised of uniform appearing basaloid cells which are arranged in solid, trabecular, tubular, and membranous patterns. But the myxoid and chondroid mesenchymal like component as seen in pleomorphic adenoma is lacking in basal cell adenoma. We report a case of basal cell adenoma of parotid gland with review of the literatures. Methods: The 59-year-old female patient was referred to our department with a painless palpable mass in the left preauricular region for about 1 year. Movable and nontender subcutaneous mass was palpable. There was no evidence of cervical metastasis in computed tomography and ultrasonography. On fine needle aspiration cytology, pleomorphic adenoma was suspected. Under general anesthesia, superficial parotidectomy including tumor was performed. The biopsy result was basal cell adenoma. Results: Long-term follow-up for 54 months showed favorable result without evidence of recurrence except for temporary facial nerve weakness right after the surgery. Conclusion: Basal cell adenoma is the third most frequent benign tumor of the salivary gland, following pleomorphic adenoma and Warthin's tumor, although the incidence is low. The typical clinical feature of the basal cell adenoma is slowly growing, asymptomatic, and freely movable parotid mass. Basal cell adenoma should be also considered as a differential diagnosis of the parotid gland benign tumor.

• The Journal of Korean Medicine
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• v.42 no.3
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• pp.153-164
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• 2021

Objectives: The aim of this study is to investigate the effect of Heat-sensitive Moxibustion on Benign Prostatic Hyperplasia Methods: We searched articles from Academic Journals(CAJ) online databases, Oriental Medicine Advanced Searching Integrated System (OASIS), Searching key words were '前列腺增生', '熱敏灸' and '열민구', '전립선비대'. The search range included randomized controlled trials (RCTs). Among the articles published to 2020, 10 articles were found. After review the title, abstract and original, 3 articles were selected finally to rule out treatment combined with completely different treatments. Result: The Heat-sensitive moxibustion at acupoints in the treatment of Benign prostatic hyperplasia were significantly superior to control group after treatment in the symptoms of patients, IPSS, QOL, PVR and Qmax(P<0.05). The Heat-sensitive moxibustion can significantly reduce the incidence of temporary urinary incontinence after Transurethral resection of the prostate(TURP) and improve life quality and satisfaction of patients(P<0.05). The individualized desensitization saturated time and amount of Heat-sensitive moxibustion is superior effective to general amount and time of traditional moxibustion in the total effective rate, IPSS, Ru and Qmax(P<0.01) for Benign prostatic hyperplasia. Conclusion: Heat sensitive moxibustion directly transfer heat to the source of a disease. So it can be considered as a good treatment for Benign prostate hypertrophy. It was also shown a better effect on BPH compared to traditional moxibustion, According to the thermo principles of tumor, if the tumor cell's death temperature of 43℃ is reached, that can cause tumor degeneration. Therefore I think Heat sensitive moxibustion can be applied to various tumor disease. The results of this study could be applied to clinical treatment of BPH. However, additional large-scale clinical researches should be conducted.