1.Intraosseous hemangioma of the orbit.
June Seok CHOI ; Yong Chan BAE ; Gyu Bin KANG ; Kyung Un CHOI
Archives of Craniofacial Surgery 2018;19(1):68-71
Intraosseous hemangioma is an extremely rare tumor that accounts for 1% or fewer of all osseous tumors. The most common sites of its occurrence are the vertebral column and calvaria. Occurrence in a facial bone is very rare. The authors aim to report a case of the surgical treatment of intraosseous hemangioma occurring in the periorbital region, which is a very rare site of occurrence and to introduce our own experiences with the diagnosis and treatment of this condition along with a literature review. A 73-year-old male patient visited our hospital with the chief complaint of a mass touching the left orbital rim. A biopsy was performed by applying a direct incision after local anesthesia. Eventually, intraosseous hemangioma was diagnosed histologically. To fully resect the mass, the orbital floor and zygoma were exposed through a subciliary incision under general anesthesia, and then the tumor was completely eliminated. Bony defect was reconstructed by performing a seventh rib bone graft. Follow-up observation has so far been conducted for 10 months after surgery without recurrence or symptoms.
Aged
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Anesthesia, General
;
Anesthesia, Local
;
Biopsy
;
Diagnosis
;
Facial Bones
;
Follow-Up Studies
;
Hemangioma*
;
Humans
;
Male
;
Orbit*
;
Recurrence
;
Ribs
;
Skull
;
Spine
;
Transplants
;
Zygoma
2.A rare case of isolated schwannoma in infraorbital nerve.
June Seok CHOI ; Sang Min PARK ; Kyung Un CHOI
Archives of Craniofacial Surgery 2018;19(3):231-234
A schwannoma is a benign tumor that develops from Schwann cells. It is known to occur more frequently in women than men, and about one third of schwannoma cases occur in the head and neck area. It is also known to originate mainly in the auditory nerve. However, it is rarely associated with the trigeminal nerve, and especially, schwannomas related to the infraorbital nerve are very rare. we report a rare case of a schwannoma involving the infraorbital branch of the trigeminal nerve in a 45-year old male adult. The patient underwent physical examination and magnetic resonance imaging. The mass was approached through subciliary approach that is familiar to the plastic surgeon and completely resected. Histopathological findings showed pointed to a benign schwannoma. Infraorbital nerve schwannoma is difficult to distinguish from other diseases by means of clinical symptoms, physical findings, or imaging. In spite of its rarity, infraorbital nerve schwannoma may be considered a possible diagnosis in the case of mass on cheek. Assessment by computed tomography or magnetic resonance imaging is necessary for proper diagnosis. About the surgical approach, excision through the subciliary approach should be considered rather than the direct transfacial approach in view of stability, cosmetic effects, and familiarity.
Adult
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Cheek
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Cochlear Nerve
;
Diagnosis
;
Female
;
Head
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Neck
;
Neurilemmoma*
;
Physical Examination
;
Plastics
;
Recognition (Psychology)
;
Schwann Cells
;
Trigeminal Nerve
5.A novel 3D scan method to quantify teeth wear.
Seung June KIM ; Dae Gyun CHOI ; Kung Rock KWON ; Seok Hyung LEE
The Journal of Korean Academy of Prosthodontics 2004;42(1):1-10
STATEMENT OF PROBLEM: Tooth wear is physiological phenomenon. Ninety-seven percent of normal people have tooth wear and about 7% has pathologic teeth wear. If we know the amount of tooth surface loss caused by pathologic tooth wear, we may restore it ideally. PURPOSE: Recently, measurement of tooth wear by using 3D scan has been increasing. Therefore, we need to know how accurate 3D scan is. Past accuracy test on 3D scan was about linear change, but as we know that tooth wear is volume change. Thus, the purpose of this study is to know how accurate 3D scan is. MATERIAL AND METHODS: For accuracy test of 3D scanner, volume values measured by 3D scanner and micro-balance were compared. For test I, preliminary, 3 ball samples and 3 circular cones were made with pattern resin. For test II, 10 teeth shape rubber samples were used. RESULTS AND CONCLUSION: 1. The result of the accuracy test on 3D scan with 3 ball samples and 3 circular cones made of pattern resin has no significant difference(p<0.05). 2. The result of the accuracy test on 3D scan with 10 samples of tooth shape rubber has no significant difference(p<0.05). As a result, we may concluded the analysis of quantifying tooth wear used by 3D scan is useful in the clinic.
Physiological Phenomena
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Rubber
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Tooth Wear
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Tooth*
6.A study on the visco-elastic properties of four currently used tissue conditioners.
Sung Ho CHOI ; June Sung SHIM ; Hong Seok MOON ; Moon Kyu CHUNG
The Journal of Korean Academy of Prosthodontics 2003;41(1):35-47
The dimensional stability of tissue conditioners characterizes the ability of the materials to yield accurate functional impressions of oral mucosa. This study evaluated the viscoelastic property and the linear dimensional changes with the factor of time and thickness of tissue conditioners (COE-COMFORT(TM), Visco-gel, COE-SOFT(TM), Soft-Liner) The thickness of these materials were changed (1.5mm, 3.0mm) and the percentage changes in dimension were measured at 1h, 12h, 24h, 36h, 3day, 7day after specimen preparation. From the results large differences appear between the various tissue conditioners. The results suggest that the period recommended for forming functional impression would be 2-3days after insertion in the mouth. in addition, it is important to select tissue conditioners suitable for functional impression because of the wide range of dimensional stability among the materials.
Mouth
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Mouth Mucosa
7.Evaluation of bone metastasis by 99mTc-MDP scan in stomach cancer patients.
Chang Woon CHOI ; Sang Eun KIM ; Dong Soo LEE ; Jung Seok LYEO ; Curie AHN ; June Key CHUNG ; Myung Chul LEE ; Noe Kyung KIM ; Chang Soon KOH
Korean Journal of Nuclear Medicine 1991;25(2):211-218
No abstract available.
Humans
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Neoplasm Metastasis*
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Stomach Neoplasms*
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Stomach*
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Technetium Tc 99m Medronate*
8.Establishment of I-131, Tc-99m labeling methods to in-house anti-CEA antibodies and evaluation of the immunological characteristics.
June Key CHUNG ; Dong Soo LEE ; Myung Chul LEE ; Hong Keun CHUNG ; Chang Soon KOH ; Mee Kyoung HONG ; Seok Rye CHOI ; Il Taek SEO ; Jun Ho CHUNG
Korean Journal of Nuclear Medicine 1992;26(2):346-354
No abstract available.
Antibodies*
9.Detection of Osteomylitis Using a Tc-99m Labeled Antigranulocyte Antibody Immunoscintigraphy.
Won Jun KANG ; June Key CHUNG ; Jeong Seok YEO ; Mee Kyoung HONG ; Jae Min JEONG ; Dong Soo LEE ; Sang Hoon LEE ; In Ho CHOI ; Myung Chul LEE
Korean Journal of Nuclear Medicine 1998;32(4):344-353
PURPOSE: The purpose of this study was to evaluate the diagnostic accuracy of Tc-99m labeled antigranulocyte antibody immunoscintigrapy in the diagnosis of osteomyelitis and compare with the results of triphasic bone scan. MATERIALS AND METHODS: The study population was 39 patients (22 male, 17 female) who had uncertain diagnoses of osteomyelitis. Fifteen patients had history of orthopedic surgery, and 5 had previous fracture. One milligram of monoclonal antibody against NCA-95 was labeled with 370 MBq of Tc-99m, injected intravenously, and 4 hour images were obtained. Triphasic bone scan images were obtained in 30 p;tients. The final diagnosis was confirmed by bacteriologic culture, biopsy or long term clinical follow up. RESULTS: Twenty one patients were confirmed to have osteomyelitis (1 acute, 20 chronic). Eighteen patients were without osteomyelitis. Antigranulocyte antibody immunoscintigraphy had a sensitivity of 71% (15/21), and a specificity of 89% (16/18), while the sensitivity and specificity of triphasic bone scan was 93% (13/14) and 38% (6/16), respectively. Antigranulocyte antibody scan showed higher specificity of 100% (11/11) in comparison with 33% (3/9) of triphasic bone scan in patients with history of orthopedic surgery or fracture. CONCLUSION: Antigranulocyte antibody immunoscintigraphy is more specific than that of triphasic bone scan and may be helpful in patients with history of surgery or fracture. However, sensitivity is lower than triphasic bone scan in the detection of chronic osteomyelitis.
Biopsy
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Diagnosis
;
Follow-Up Studies
;
Humans
;
Male
;
Orthopedics
;
Osteomyelitis
;
Sensitivity and Specificity
10.Radiotherapy as an effective treatment modality for follicular lymphoma: a single institution experience.
Seo Hee CHOI ; Jaeho CHO ; Jin Seok KIM ; June Won CHEONG ; Chang Ok SUH
Radiation Oncology Journal 2015;33(4):310-319
PURPOSE: Follicular lymphoma (FL) is an indolent non-Hodgkin's lymphoma that is highly sensitive to radiotherapy (RT). However, the effectiveness of RT has not been well established. We reviewed our experiences to assess the role of RT for FL and analyze treatment results. MATERIALS AND METHODS: Retrospective analysis was done on 29 patients who received first RT between January 2003 and August 2013. Of 23 early stage (stage I, II) patients, 16 received RT alone, four received chemotherapy followed by RT, two received RT postoperatively, and one received salvage RT for relapse after resection. Six advanced-stage (stage III, IV) patients received RT after chemotherapy: two received consolidation RT, three received salvage RT for residual lesions, and one received RT for progressive sites. Median RT dose was 30.6 Gy (range, 21.6 to 48.6 Gy). Median follow-up duration was 62 months (range, 6 to 141 months). RESULTS: All patients showed complete response in the radiation field. Eight outfield relapses were reported. Seven patients received salvage treatment (three chemotherapy, four RT). Four patients showed excellent responses, especially to RT. Estimated 5-year and 10-year relapse-free survivals were 72% and 60%. In the RT-alone group, 5-year relapse-free survival was 74.5%. All advanced-stage patients were disease-free with 100% 5-year overall survival. Disease-specific death was noted in only one patient; four others died of other unrelated causes. No significant toxicity was reported. CONCLUSION: RT resulted in excellent treatment outcomes for all FL stages when used as a primary treatment modality for early stage or salvage-treatment modality for advanced-stage disease.
Drug Therapy
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Follow-Up Studies
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Humans
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Lymphoma, Follicular*
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Lymphoma, Non-Hodgkin
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Radiotherapy*
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Recurrence
;
Retrospective Studies
;
Treatment Outcome