• The Journal of the Korean bone and joint tumor society
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• v.13 no.1
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• pp.43-47
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• 2007

Sj$\"{o}$gren's syndrome is a systemic, autoimmune disorder of the exocrine glands with associated lymphocytic infiltrates of the affected glands and characteristic of dry eye and mouth. We report a case of Sj$\"{o}$gren's syndrome in which the patient presented systemic symptoms without sicca symptoms and had radiologic findings mimicking multiple skeletal metastasis and was finally confirmed with Sj$\"{o}$gren's syndrome with renal tubualr acidosis.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1993.05a
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• pp.95-95
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• 1993

Even though maxillary cancer is usually discovered in advanced stage, its regional lymph node or distant metastases are not common comparing to other head and neck cancer. So the result of treatment depends upon local control of the tumor. Because maxillary sinus is anatomically located adjacent to orbit and skull base, it is difficult to remove the tumor completely with sufficient safety margin like in other malignant tumor. Traditionally, surgery including aggressive resection, radiotherapy or both combined therapy have been widely accepted in many institutes, but their results are not still satisfactory. Sixteen cases of maxillary cancer( all squamous cancer, T2 1 case, T3 6 cases, T4 9 cases, mean age 57.2 years) were treated by intraarterial chemotherapy, raditherapy and surgery and followed up retrospectively. 5 year survival rate by Kaplan-Meier method was 51.95%, and orbit, palate or cheek skin could be preserved in many cases and their functional result was good.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.32 no.4
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• pp.379-385
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• 1987

A field experiment was conducted to find out the effects of liming (soil pH) and sources of N on the chemical constituents of soil and leaf lamina of burley tobacco. Treatments consisted of liming (nonliming, liming to soil pH 5.5 and 6.5) as the main plot and N sources［compound fertilizer of containing 3.9% $NH_4-N$ and 6.1% $NH_2-N,\;NaNO_3,\;(NH_2)_2CO\;and\;(NH_4)_2SO_4$］as the sub-plot. The soil pH was high in $NaNO_2$ plot, while low in $(NH_4)_2SO_4$. But the differences of Ca concentration in top soil among N sources were not detected. The $NO_3-N$ concentration in top soil was high in high limed and $NaNO_3$ plot. The $NO_3-N$ content of leaf (lamina) at 75 days after transplanting was high in $NaNO_3$ plot and CaO con-tent of leaf at 45 days after transplanting was high in high limed plot. But neither liming nor N source had effect on the contents of total nitrogen, $P_2-O_{5}\;and\;K_2O$ of leaf during growing season. There was no significant differences in total alkaloid and total nitrogen contents of cured leaf (lamina) to liming and N source. But when the source of N was $NaNO_3$, the content of total alkaloid was increased by adding lime. When the source of N was $(NH_4$)_2SO_4$, the content of $K_2O$ in cured leaf was high while CaO was low. But neither liming nor N source had effect on the contents of $P_2-O_{5}$ and MgO in cured leaf.

• Journal of Chest Surgery
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• v.36 no.4
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• pp.289-292
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• 2003

Primary malignant melanoma occurring in the lung is very rare and only few cases have been reported in the literatures. We have experienced one case of primary malignant melanoma of the right middle lobe. The patient was a 65-year-old male who had cough with blood tinged sputum for one month. Chest computed tomography showed about 4.5$\times$3 cm sized mass at the right middle lobe encasing the bronchus. Percutaneous needle biopsy was performed and confirmed to malignant melanoma. Physical examination and additional clinical history showed that the mass had not metastasized to other possible primary sites. The patient underwent thoracotomy with right middle lobe lobectomy. Histologically, the tumor showed sheets of tumor cells that have nuclear atypia and melanin pigment Postoperative course was uneventful and the patient has been followed up for 24 months with no recurrence.

• Tuberculosis and Respiratory Diseases
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• v.53 no.2
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• pp.196-201
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• 2002

Malignant melanoma is a highly malignant form of cutaneous cancer derived from melanocytes. The lesion frequently metastasizes to the lymph nodes, lung, liver and bone. However, an endobronchial metastasis and a primary malignant. melanoma of the lung are quite rare. We report a case of an unknown primary malignant melanoma with a pulmonary and endobronchial metastasis in a 34 years old male. He complained of coughing and black-colored sputum. Abnormal skin and mucosal lesions were not found during a physical examination. A chest X-ray revealed multiple nodular masses in both lung fields. A flexible bronchoscopy showed two yellowish small nodules at the entry of left lower bronchus. Vimentin, the S-100 protein, and HMB-45 stain positive melanoma cells were detected at the bronchoscopic biopsy specimen.

• Journal of Biomedical Engineering Research
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• v.25 no.1
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• pp.11-19
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• 2004

Stage 1 sleep provides important information regarding interpretation of nocturnal polysomnography, particularly sleep onset. It is a short transition period from wakeful consciousness to sleep. Lack of prominent sleep events characterizing stage 1 sleep is a major obstacle in automatic sleep stage scoring. In this study, we attempted to utilize simultaneous EEC and EOG processing and analyses to detect stage 1 sleep automatically. Relative powers of the alpha waves and the theta waves were calculated from spectral estimation. Either the relative power of alpha waves less than 50％ or the relative power of theta waves more than 23％ was regarded as stage 1 sleep. SEM (slow eye movement) was defined as the duration of both eye movement ranging from 1.5 to 4 seconds and regarded also as stage 1 sleep. If one of these three criteria was met, the epoch was regarded as stage 1 sleep. Results f ere compared to the manual rating results done by two polysomnography experts. Total of 169 epochs was analyzed. Agreement rate for stage 1 sleep between automatic detection and manual scoring was 79.3％ and Cohen's Kappa was 0.586 (p＜0.01). A significant portion (32％) of automatically detected stage 1 sleep included SEM. Generally, digitally-scored sleep s1aging shows the accuracy up to 70％. Considering potential difficulties in stage 1 sleep scoring, the accuracy of 79.3％ in this study seems to be robust enough. Simultaneous analysis of EOG provides differential value to the present study from previous oneswhich mainly depended on EEG analysis. The issue of close relationship between SEM and stage 1 sleep raised by Kinnariet at. remains to be a valid one in this study.

• Journal of Chest Surgery
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• v.35 no.10
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• pp.768-772
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• 2002

Sinus histiocytosis with massive lymphadenopathy or Rosai-Dorfman disease(RDD) is a rare type of histiocytosis syndrome, that presents in its most typical form as massive, painless, bilateral lymph node enlargement in the neck during the first or second decade of life. The disease involves extranodal site in over 25% to 43% of the cases, however cases of extranodal RDD without nodal disease have rarely been reported. The involved sites of extranodal RDD have been reported various that were orbit, ocular adnexae, head and neck, upper respiratory tract, breast, gastrointestinal tract, CNS, etc. A 35 year-old man was present with pleural pain on left anterior chest and anterior mediastinal mass, that underwent an excision to remove the suspected invasive thymoma, and the diagnosis was confirmed to extranodal Rosai-Dorfman disease.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.481-484
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• 2009

It has been reported that reckless marine structures located in the coastal zone deteriorate environment and tourism due to industrialization and tourist development. Therefore, it needs to analyze am appropriate remodeling plan for environment, tourism, and safety in current marine structures and then establish the standard for the optimum remodeling design and the guidance for maintenance. Furthermore, it needs a precise simulation program about typhoons and tidal waves for the environment, safety and a three-dimensional positioning and structural modeling currently built in structures. This research has a purpose of suggesting a theoretical method for the establishment of GIS information.

• Journal of Yeungnam Medical Science
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• v.16 no.2
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• pp.364-368
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• 1999

A rare case of telangiectatic osteosarcoma of the sphenoid bone was reported. The patient was a 27-year-old male and had suffered from left eye protrusion and diplopia for three months. Radiologically, a lobulated osteolytic lesion was located between sphenoid and left temporal bone. Pathologically, the tumor had multiloculated blood filled cystic vascular spaces and osteoid formation by malignant spindle osteoblast cells. The differential diagnosis of this rare entity from aneurysmal bone cyst was important radiologically and pathologically. This case is the second case of telangiectatic osteosarcoma of the sphenoid bone followed by a case of Whitehead RE and Melhem ER in 1998.

• Journal of The Korean Ophthalmological Society
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• v.59 no.12
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• pp.1185-1189
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• 2018

Purpose: We report a rare case of isolated traumatic aniridia in a pseudophakic eye. Case summary: A 69-year-old female came to our emergency department complaining of right eye pain and visual disturbance after trauma due to fall on the stairs. Five years earlier she had undergone an uncomplicated right sutureless phacoemulsification cataract extraction through a 2.2 mm temporal clear corneal incision, followed by insertion of a folding intracapsular intraocular lens. Total iris expulsion occurred through the cataract incision without extension of the wound or disruption of the posterior capsule or intraocular lens. Conclusions: We report a rare case of isolated traumatic aniridia in a pseudophakic eye, which has not been reported in the Republic of Korea.