• Journal of Chest Surgery
• /
• v.33 no.7
• /
• pp.594-596
• /
• 2000

Congenital cystic adenomatoid malformation and Extralobar Pulmonary sequestration are very rare congenital anomalies. We experienced a 4 year-old female patient who had Congenital cystic adenomatoid malformation in her lower lobe of left lung. We accidently found extralobar pulmonary sequestration associated with Congenital cystic adenomatoid malformation at operation field. The resection of the left lower lobe and the extralobar pulmonary sequestration were performed. The arterial supply of the extralobar pulmonary sequestration was one anomalous artery arised from the thoracic aorta. The Venous drainage of expralobar pulmonary sequestration was intercostal vein into the azygous vein. The patient was discharged without any problem.

• Korean Journal of Head & Neck Oncology
• /
• v.2 no.1
• /
• pp.61-66
• /
• 1986

Three cases of hyperparathyroidism are presented from our experience at Presbyterian Medical Center in Chonju in the hope that this will alert us all to the variegated patterns of clinical presentation. In the first case the principal symptom was muscular weakness. In the second a bone cyst (which was part of the syndrome of osteitis fibrosa cystica); and in the third case rib cage tenderness, backache, and persistent epigastric pain. All three had adenomas, but in Case 2 the adenomas were multiple. All three responded to surgical resection and remain well.

• Journal of Chest Surgery
• /
• v.29 no.2
• /
• pp.223-226
• /
• 1996

Pulmonary sequestration and congenital cystic adenomatoid malformation are two infrequent congenital pulmonary diseases and the combination of these two entities is rare. We had experienced a 3 week old male patient with a pulmonary mass, who had been sufyerring from tachypnea and chest wall retraction after birth. The pulmonary mass was suspected as a congenital cystic adenomat id malformation by chest CT. And therefore, we performed urgent operation via standard thoracotomy incision. Upon a thoracotomy, there was an extrapleural mass with anomalous blood supply near the posterior diaphragm and multiple cystic lesions in right lower lobe. The two anomalous arteries arising from the thoracic aorta and one vein draining into the azygos vein were ligated. and then the extrapleural mass was removed and a right lower lobectomy was performed. Final histologic diagnosis was congenital cystic adenomatoid malformation associated with extralobar pulmonary sequestration. The patient was discharged without any problem.

• Tuberculosis and Respiratory Diseases
• /
• v.48 no.1
• /
• pp.91-95
• /
• 2000

Mucous gland adenoma of the bronchus is a rare benign tumor arising from the bronchial mucous gland. It accounts for less than 0.5% of all lung tumors. In adults, tracheal tumors are most often malignant. Among benign tumors arising in the trachea, mucous gland adenoma of the trachea is extremely rare. First case was reported by Ferguson and Cleeland in 1988, as "Mucous gland adenoma of the trachea". Microscopic study shows it to arise from normal submucosal mucous glands forming glandular or tubular structures composed of mucous secreting cells. Common symptoms were cough, hemoptysis, recurrent and protracted pneumonia, shortness of breath, and wheeze. Duration of symptoms before diagnosis varied from a few weeks to 10 years with prolonged symptoms being usual. Management of these tumors should be complete excision, including pulmonary resection because two instances of recurrence after local excision have been reported.

• Korean Journal of Plant Resources
• /
• v.17 no.3
• /
• pp.219-226
• /
• 2004

Transplantings of onion (Allium cepa L.) seedlings are required for higher germinability and uniformity. This study was done to determine effects of various seed treatments (seed cleaning, priming, GA$_3$, prechilling, drying, and light quality during seed drying) on germination and seedling emergence. Nongwoodaego and Changnyungdaego were used as cultivars for checking seed germination, and two cultivars and Cheonjuguhyeonghwang were investigated with seedling production rate. Seed cleaning using water prior to the other treatments greatly increased germination rate. Priming with 200mM Ca(NO$_3$)$_2$ solution somewhat alleviated the germination rate while GA$_3$ did not. Prechilling had the highest rate among the treatments. Seed drying after prechilling enhanced the rate compared to non drying, and during drying the prechilled seeds red light illumination showed the greatest rate in comparison with dark, blue, and far-red ones. Seedling production rate was enhanced in sequential treatments of seed cleaning, prechilling for 3 to 5 days, and red light treatment during 6 hour seed drying.

• Korean Journal of Plant Resources
• /
• v.13 no.1
• /
• pp.48-53
• /
• 2000

Lacquer tree can be proliferated by root or stem cutting, and seed. In case of proliferation by seed, however, the germination rate is very low. Thus, the present study was carried out to obtain aspceptic lacquer plant in vitro from seed because natural tissue culture was highly defiled by unknown fungi and bacteria. First seed grading on distilled water was 50.7% and second seed grading was 20.8% after 98% sulfuric acid treatment for 2 hours. Removal of inner seed coat was higher with 32.4% than non-removal of outer seed coat and removal outer seed coat in rooting rate. In germination rate according to pre-treatment, growth regulators were not effective at all, but sulfuric acid was effective a little with 3%. Removal outer seed coat was increased about 4%, that germinated about 10% in MS medium supplemented with 1.0mg/L BA and 0.05mg/L NAA, 1.0mg/L BA. Lacquer tree seeds germinated after 10 days in MS medium, and aspceptic seedling of lacquer tree were obtained after 3 weeks in vitro. Germination rate, however, was lower about 10%.

• The Korean Journal of Nuclear Medicine
• /
• v.26 no.1
• /
• pp.1-7
• /
• 1992

To elucidate alteration of purine nucleoside phosphorylase (PNP) activity of peripheral lymphocytes and helper/inducer and suppressor/cytototxic T cells in patients with thyroid tumors, the author examined PNP activity, and $CD4^+\;and\;CD8^+$ cells of peripheral blood in 20 cases of simple goiter, 9 cases of thyroid adenoma and 20 cases of thyroid cancer as well as 11 cases of adult healthy subjects as control. Diagnoses were established on the basis of commonly accepted clinical and biochemical criteria in simple goiter and were confirmed histopathologically in thyroid adenoma and cancer. All blood was obtained from veins of the patients and control subjects in Pusan National University Hospital during the period of January to August, 1991. The results obtained were summarized as follows: 1) The PNP activity was significantly decreased or tended to be decreased in thyroid adenomas and cancers as compared with control subjects and simple goiters. 2) The percentage of CD8 cells was significantly decreased or tended to be decreased in thyroid cancers as compared with simple goiters, thyroid adenomas and control subjects. 3) The CD4/CD8 ratio was significantly increased or tended to be increased in thyroid cancer as compared with simple goiters, thyroid adenomas and control subjects. On the basis of the results, it can be suggested that the immunodysfunction in thyroid cancer may be due to decreased suppressor/cytotoxic T cells, and the estimation of PNP activity of peripheral lymphocyte is a helpful test in detecting the immune status in thyroid tumors.

• Journal of Yeungnam Medical Science
• /
• v.13 no.2
• /
• pp.295-301
• /
• 1996

Phylloides tumor is very similar to giant fibroadenoma in that they have benign appearance in breast radiologic image. Fibroadenoma has no malignant potential, but phylloides tumor is locally recurrent, invasive and may occasionally metastasize. It thus appears that evaluation of the differential point of the two tumor groups by radiologic study is very important. We retrospectively compared sonographic findings of 6 cases of phylloides tumor with those of 4 cases of fibroadenoma, which proved pathologically in Yeungnam University Hospital from 1984 to 1986. The mean age of the patients were 31.8 years old(from 14 to 41 years old) in phylloides tumor and 28.8 years old (from 17 to 40 years old) in giant fibroadenoma, respectively. The viewpoints of this analysis were size, shape and contour of the masses, internal echo pattern, posterior enhancement, and especially the existence of peripheral cyst or septal band echo. We found that diffenentiation of these two tumors by sonography was difficult. But peripheral cyst was found only in phylloides tumor and septal band echo was found largely in giant fibroadenoma. Although the existence of peripheral cyst or septal band echo in the breast mass was not pathognomonic findings, we suggest that the existence of septal band echo is preferential finding to fibroadenoma, and peripheral cyst is preferential finding to phylloides tumor.

• Radiation Oncology Journal
• /
• v.18 no.3
• /
• pp.167-176
• /
• 2000

The objective of recent radiation therapy is to improve the quality of treatment and the after treatment quality of life. In Korea, sharing the same objective, significant advancement was made due to the gradual increase of patient number and rapid increase of treatment facilities. The advancement includes generalization of three-dimensional conformal radiotherapy (3D-CRT), application of linac-based stereotactic radiosurgery (SRS), and furthermore, the introduction of intensity modulated radiation therapy (IMRT). Authors in this paper prospectively review the followings: the advancement of radiation oncology in Korea, the recent status of four-dimensional radiation therapy, IMRT, the concept of the treatment with biological conformity, the trend of combined chemoradiotherapy, the importance of internet and radiation oncology information management system as influenced by the revolution of information technology, and finally the global trend of telemedicine in radiation oncology. Additionally, we suggest the methods to improve radiotherapy treatment, which include improvement of quality assurance (QA) measures by developing Koreanized QA protocol and system, regional study about clinical protocol development for phase three clinical trial, suggestion of unified treatment protocol and guideline by academic or research societies, domestic generation of treatment equipment's or system, establishment of nationwide data base of radiation-oncology-related information, and finally patterns-of-care study about major cancers.

• Journal of Navigation and Port Research
• /
• v.44 no.4
• /
• pp.275-282
• /
• 2020

Recently, the occurrence of a ship capsizing was analyzed as the main cause of the lack of stability or loss because of the improper management of the center of gravity, the movement of cargo or heavy weight when excessive steering occurs or when navigating during bad weather. Thus, to prevent a ship from capsizing, it is necessary to secure stability to enable the ship's return to its upright position, even if a dangerous heel occurs. The GM is a crucial evaluation factor regarding stability, which the navigation officer uses to preserve stability. In this study, based on the stability data collected from the operating of ships for five years, The GM by ship's type according to the operating status was analyzed specifically such as a ship's length, breadth, and gross tonnage. The feature of the GM distribution according to a ship's length was confirmed, and after performing the correlation analysis between the breadth and the GM, the ratio of the GM to breadth was calculated, and the result was compared with the previous ratio. Additionally, a simple approximation formula and minimum GM for the estimation of the GM by ship type were proposed by the regression analysis of the GM using the gross tonnage (GT)/breadth (B) to reflect the trend of larger ships being built. The results of this study are expected to be used as data for the review of securing a stable GM on ships.