• Korean Journal of Radiology
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• v.2 no.1
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• pp.42-51
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• 2001

Because the tongue is superficially located and the initial manifestation of most diseases occurring there is mucosal change, lingual lesionscan be easily accessed and diagnosed without imaging analysis. Some lingual neoplasms, however, may manifest as a submucosal bulge and be located in a deep portion of the tongue, such as its base; their true characteristics and extent may be recognized only on cross-sectional images such as those obtained by CT or MRI. Some uncommon tongue neoplasms may have characteristic radiologic features, thus permitting quite specific radiologic diagnosis. Lipomas typically manifest at both CT and MR imaging as homogeneous nonenhancing lesions. Relative to subcutaneous fat they are isoattenuating on CT images, and all MR sequences show them as isointense. Due to the paramagnetic properties of melanin, metastases from melanotic melanoma usually demonstrate high signal intensity on T1-weighted MR images and low signal intensity on T2-weighted images. Although the radiologic findings for other submucosal neoplasms are nonspecific, CT and MR imaging can play an important role in the diagnostic work-up of these unusual tumors. Delineation of the extent of the tumor, and recognition and understanding of the spectrum of imaging and the pathologic features of these lesions, often help narrow the differential diagnosis.

• Korean Journal of Radiology
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• v.2 no.1
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• pp.37-41
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• 2001

Because the tongue is superficially located and the intial manifestation of most diseases occurring there is mucosal change, lingual these lesions can be easily accessed and diagnosed without imaging analysis. Most congenital lesions of the tongue, however, can manifest as a submucosal bulge and be located in a deep portion of that organ such as its base; their true characteristics and extent may be recognized only on cross-sectional images such as those obtained by CT or MRI. In addition, because it is usually difficult to differentiate congenital lesions from other submucosal neoplasms on the basis of imaging findings alone, clinical history and physical examination should always be taken into consideration when interpretating CT and MR images of the tongue. Although the radiologic findings for congenital lesions are nonspecific, CT and MR imaging can play an important role in the diagnostic work-up of these unusual lesions. Delineation of the extent of the tumor, and recognition and understanding of the spectrum of imaging and the pathologic features of these lesions, often help narrow the differential diagnosis.

• Journal of Korean Clinical Nursing Research
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• v.18 no.2
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• pp.284-295
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• 2012

Purpose: This study was done to clarify effects of bispectral index monitoring sedative administration, compared to MOAA/S (Modified Observer's Assessment of Alertness and Sedation), on conscious sedation, physiological stability and recovery time for patients undergoing endoscopic submucosal dissection. Methods: Participants In this study were patients who underwent endoscopic submucosal dissection because of early gastric cancer. Participants were assigned randomly to an experimental group receiving sedatives based on bispectral index monitoring or to a control group with the MOAA/S instrument. Movements, belching, memory, pain, discomfort, physiological stability (MBP, PR, $SpO_2$), and recovery time were measured during the treatment and recovery. Data were analyzed using Spearman partial correlation coefficient analysis, Mixed model and Wilcoxon rank sum test to determine differences in the parameters. Results: There were no statistically significant differences between the two groups for conscious sedation(movement, belching, memory, pain, or discomfort), physiological stability and recovery time. Conclusion: The results of this study indicate that no differences were found between the two types of monitoring. Thus, use of a bispectral index monitor in clinical practice enabling medical staff to readily assess the conscious sedation of for these patients is expected to be increasingly used as an objective assessment tool for conscious sedation for patient safety.

• Clinical Endoscopy
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• v.55 no.5
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• pp.655-664
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• 2022

Background/Aims: Endoscopic submucosal dissection (ESD) for residual or recurrent colorectal lesions after incomplete resection is challenging because of severe fibrosis. This study aimed to compare the efficacy of the pocket-creation method (PCM) with a traction device (TD) with that of conventional ESD for residual or recurrent colorectal lesions. Methods: We retrospectively studied 72 patients with residual or recurrent colorectal lesions resected using ESD. Overall, 31 and 41 lesions were resected using PCM with TD and conventional ESD methods, respectively. We compared patient background and treatment outcomes between the PCM with TD and conventional ESD groups, respectively. The primary endpoints were en bloc resection and R0 resection rates. The secondary endpoints were the dissection speed and incidence of adverse events. Results: En bloc resection was feasible in all cases with PCM with TD, but failed in 22% of cases of conventional ESD. The R0 resection rates for PCM with TD and conventional ESD were 97% and 66%, respectively. Dissection was significantly faster in the PCM with TD group (13.0 vs. 7.9 mm²/min). Perforation and postoperative bleeding were observed in one patient in each group. Conclusions: PCM with TD is an effective method for treating residual or recurrent colorectal lesions after incomplete resection.

• Journal of Chest Surgery
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• v.20 no.4
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• pp.865-868
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• 1987

Adenoid cystic carcinoma of the esophagus has been relatively an uncommon, slow growing tumor. A 51 year-old man patient had a tumor in the lower third of the esophagus which was incidentally found during an examination for UPPER C-I series, and resected successfully without Thoracotomy. The tumor exhibited a polypoid appearance covered by normal esophageal epithelium, localized entirely in the submucosal layer of the esophagus and morphologically identical to adenoid cystic carcinoma in the salivary glands.

• Journal of Chest Surgery
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• v.26 no.10
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• pp.815-820
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• 1993

We experienced a case of esophageal leiomyoma combined with achalasia that is very rare. Patient had suffered from severe dysphagia and postprandial vomiting and diagnosis was accomplished by esophagography, esophagoscopy, chest CT, and esophageal motility test. The operative treatment was done through left lateral thoracotomy by enucleation of the submucosal tumor and esophagomyotomy. By histopathological findings, the diagnosis of leiomyoma was confirmed and LES biopsy revealed absence of the ganglion cells of myenteric and Auerbach`s plexus. Symptoms of the patient were completely relieved and postoperative course was uneventful.

• Journal of Chest Surgery
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• v.19 no.3
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• pp.484-488
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• 1986

Mucoepidermoid carcinoma is one of bronchial adenoma which arising from submucosal gland or mucosal gland of lower respiratory tract. The symptoms of the tumor were produced by bronchial irritation and bronchial obstruction such as coughing, pneumonitis, and atelectasis. The malignancy potency of this tumor was determined by histologic pattern but high grade malignancy was uncommon and so distant metastasis was rare. Three treatment modality such as surgery, radiotherapy, chemotherapy were used for treatment but radiotherapy and chemotherapy were lesser effective than surgery. So Early and radical resection of tumor was recommended. Here we report one case of mucoepidermoid carcinoma which treated with radical resection.

• Korean Journal of Bronchoesophagology
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• v.6 no.2
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• pp.189-191
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• 2000

Bifid epiglottis is a rare congenital laryngeal anormaly, usually associated with multiple con-genital anormalies which include digital anormalies and endocrinologic abnormalities. A notch or small indentation of the superior border of the epiglottis and, to a lesser degree, an epiglottis with a submucosal bifid appearance is a frequent occurrence. We report a 40-year-old woman with two distinct cartilaginous halves of the epiglottis, discovered incidentally during the physical examination.

• Journal of Chest Surgery
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• v.27 no.6
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• pp.486-488
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• 1994

The mucoepidermoid cancer is a tumor arising in the bronchial submucosal glands that shows an intimate admixture of glandular element and sheets of cell with or no definite squamous differentiation. This rare tumor is usually located in lobe and bronchi and occasionally in the trachea. This tumor presents with symptoms of bronchial irritation or obstruction, often of several years duration. The treatment is complete resection with use of bronchoplastic techniques.Low grade tumor have a good prognosis with adequate resection. We experienced a case of mucoepidermoid cancer arising from superior segment of left lower lobe, which was treated with Lt.lower lobectomy.

• Proceedings of the KSLP Conference
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• 1998.11a
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• pp.185-185
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• 1998

배경 : 양성성대질환에 대한 기저막영역과 성대고유층에 대한 연구를 통해서 양성성대질환의 조직병리학적 특성이 밝혀지고 있으며, 질환발생과 관련된 병인과 병태가 밝혀지고 있다. 목적 : 양성성대질환의 병리학적 특성에 맞게 후두미세수술시 성대 고유층 최상층을 최대한 보호하고 병변부위만을 제거할 수 있는 성대점막하주입술의 유용성을 알아보고자 하였다. (중략)