2.Pseudoxanthoma Elasticum.
Sung Young JOHN ; Yoo Shin LEE
Korean Journal of Dermatology 1970;8(1):77-80
Two cases of pseudoxanthoma elasticum associated with angioid streaks in both eyes were presented and the literatures were reviewed. The affected sisters were 15 and 18 years female among the five siblings. They had pin head sized yellowish maculopapular eruptions on the sides of the neck and axillae, and also visual distubance of the both eyes. They seemed to be autosomal recessive inberitance in their family background. There were no other complications.
Angioid Streaks
;
Axilla
;
Female
;
Head
;
Humans
;
Neck
;
Pseudoxanthoma Elasticum*
;
Siblings
3.A Rare Case of Unruptured Sinus of Valsalva Aneurysm Obstructing the Right Ventricular Outflow Tract.
Journal of Cardiovascular Ultrasound 2010;18(2):55-57
An unruptured sinus of Valsalva aneurysm is rare and is usually asymptomatic until a symptom associated with its complication develops. Hence, an unruptured sinus of Valsalva aneurysm is not infrequently missed unless echocardiogram is performed with other indications. An unruptured sinus of Valsalva aneurysm rarely protrudes into the right ventricular outflow tract, causing the right ventricular outflow tract obstruction. In this report, I describe a rare case of unruptured sinus of Valsalva aneurysm producing the right ventricular outflow tract obstruction, which was incidentally detected by echocardiography.
Aneurysm
;
Echocardiography
;
Sinus of Valsalva
;
Ventricular Outflow Obstruction
4.Femoral lengthening: Report of 2 Cases
Sung Keun SOHN ; Soo Bong HAHN ; In Hee CHUNG ; John C SHAW ; Chang Il PARK
The Journal of the Korean Orthopaedic Association 1978;13(4):667-672
Reduction in the extremity length of more than three to four centimeters has significant effect on both gait disturbance and aesthetic change. The method of Anderson has been one of the most successful procedures of surgical leg elongation but requires long period of bed rest and immobilization. Also. the lengthening occurs the tibia, although shortening occurs twice as frequently in the femur as in the tibia. Wagner in 1971 reported his experience with the technique that allows correction in both the femur and tibia yet does not require prolonged immobilizaton. This involves a two stage procedure with rigid external fixation and lengthening of 1.5mm per day. The second stage is for osteosynthesis and may be suppleniented by bone graft. We began using the Wagner's technique of leg lengthening at Chonju Presbyterian Medical Center about 18 months age. Two patients are presented with 7 and 9 month follow-ups after femoral lengthening of 5 cm each. Both femurs united well and the leg length discrepancy was corrected. These cases indicate that this method is a good addition to the armamentarium of treating leg length discrepancy. A subsequent review of more cases and their follow-up using this tretment program shall be forthcoming.
Bed Rest
;
Extremities
;
Femur
;
Follow-Up Studies
;
Gait
;
Humans
;
Immobilization
;
Jeollabuk-do
;
Leg
;
Methods
;
Protestantism
;
Tibia
;
Transplants
5.Clinical Use of Whole Body Scanning
Sung Keun SOHN ; Soo Bong HAHN ; In Hee CHUNG ; John C SHAW ; Sun NAMGOONG
The Journal of the Korean Orthopaedic Association 1979;14(1):147-157
The skeleton is a frequent site of bone tumor metastasis. Radiographic examination Is not sufficiently reliable in early detection since an abnormality is unlikely to be observed until more than 50% of the bone material has been lost. Therefore there was much effort to discover radiographic materials for use in scanning. At the present tirne, 99m Tc-labeled diphosphonate is the best available material for bone scanning. We applied whole body scanning with 99m Tc-to 40 patients who had bone tumors (primary or secondary), infection and other cases. The results obtained are as follow: 1. The scan can detect the extensiveness of the tumor better than plain X-ray in the early stage. 2. In metastatic disease, 60% of all patients were positive in the scan and all of there were negative in X-ray. 3. In cases of cancer, definitive treatment planning can be facilitated by the information obtained from whole body scanning. 4. In inflammatory disease, we can differentiate osteomyelltis from cellulitis or pyogenic arthritis in the early stage. 5. In fibrous dysplasia, it was possible to differentiate monostatic from polyostotic disease. 6. In nonunion of bone, scan was positive but X-ray was eouivocal.
Arthritis
;
Cellulitis
;
Humans
;
Neoplasm Metastasis
;
Skeleton
;
Whole Body Imaging
6.Chimerism by Analysis of PCR of Highly Polymorphic Variable Number of Tandem Repeat (VNTR) DNA Sequences in Human Genome; The Graft Versus Host Disease (GVHD) and Relapse of Leukemia after Allogeneic Bone Marrow Transplantation.
Chong Rae CHO ; John A HANSEN ; Paul MARTIN ; Anajane SMITH ; Sang Hwa URM ; Sung Jun KIM
Korean Journal of Hematology 1999;34(3):403-415
No abstract available.
Base Sequence*
;
Bone Marrow Transplantation*
;
Bone Marrow*
;
Chimerism*
;
DNA*
;
Genome, Human*
;
Graft vs Host Disease*
;
Humans
;
Humans*
;
Leukemia*
;
Polymerase Chain Reaction*
;
Recurrence*
;
Tandem Repeat Sequences*
;
Transplants*
7.Diagnostic Usefulness of Genomic Breakpoint Analysis of Various Gene Rearrangements in Acute Leukemias: A Perspective of Long Distance- or Long Distance Inverse-PCR-based Approaches.
John Jeongseok YANG ; Rolf MARSCHALEK ; Claus MEYER ; Tae Sung PARK
Annals of Laboratory Medicine 2012;32(4):316-318
No abstract available.
Acute Disease
;
*Gene Rearrangement
;
Genome, Human
;
Humans
;
Leukemia/*diagnosis/genetics
;
Polymerase Chain Reaction/*methods
;
Translocation, Genetic
8.Design and Dose Distribution of Docking Applicator for an Intraoperative Radiation Thherapy.
Sung Sil CHU ; Gwi Eon KIM ; John J L LOH
Journal of the Korean Society for Therapeutic Radiology 1991;9(1):123-130
A docking intraoperative electron beam applicator system, which is easily docking in the collimator for a linear accelerator after setting a sterilized transparent cone on the tumor bearing area in the operation room, has been designed to optimize dose distribution and to improve the efficiency of radiation treatment method with linear accelerator. This applicator system consisted of collimator holder with shielded metals and docking cone with transparent acrylic cylinder. A number of technical innovations have been used in the design of this system, this docking cone gives a improving latral dose coverage at therapeutic volume. The position of 90% isodose curve under surface of 8 cm diameter cone was extended 4~7 mm at 12 MeV electron and the isodose measurements beneath the cone wall showed hot spots as great as 106% for acrylic cone. The leakage radiation dose to tissues outside the cone wall was reduced as 3~5% of output dose. A comprehensive set of dosimetric characteristics of the intraoperative radiation therapy applicator system is presented.
Metals
;
Particle Accelerators
9.Dosimetry for Total Skin Electron Beam Therapy in Skin Cancer.
Sung Sil CHU ; John J K LOH ; Gwi Eon KIM
Journal of the Korean Society for Therapeutic Radiology 1992;10(1):107-114
Increasing frequency of skin cancer, mycosis fungoides, Kaposi's sarcoma etc, it need to treatment dose planning for total skin electron beam (TSEB) therapy. Appropriate treatment planning for TSEB therapy is needed to give homogeneous dose distribution throughout the entire skin surface. The energy of 6 MeV electron from the 18 MeV medical linear accelerator was adapted for superficial total skin electron beam therapy. The energy of the electron beam was reduced to 4.2 MeV by a 0.5cm x90cm x180cm acryl screen placed in a feet front of the patient. Six dual field beam was adapted for total skin irradiation to encompass the entire body surface from head to toe simultaneously. The patients were treated behind the acryl screen plate acted as a beam scatterer and contained a parallel-plate shallow ion chamber for dosimetry and beam monitoring. During treatment, the patient was placed in six different positions due to be homogeneous dose distribution for whole skin around the body. One treatment session delivered 400 cGy to the entire skin surface and patients were treated twice a week for eight consecutive weeks, which is equivalent to TDF value 57. Instrumentation and techniques developed in determining the depth dose, dose distribution and bremsstrahlung dose are discussed.
Foot
;
Head
;
Humans
;
Mycosis Fungoides
;
Particle Accelerators
;
Sarcoma, Kaposi
;
Skin Neoplasms*
;
Skin*
;
Toes
10.Unusual Angular Arrangement of Electrodes in Capacitive Heating Device: Thermal Distribution and Clinical Application.
Jin Sil SEONG ; Sung Sik CHU ; Gwi Eon KIM ; Sung Wha YANG ; John J Kyu LOH
Journal of the Korean Society for Therapeutic Radiology 1989;7(2):313-320
In capacitive heating device, which considered efficient for deep heating, parallel arrangement of the electrodes is a serious limiting factor in heating for eccentrically located lesions because it causes overheating of the exposed ipsilateral skin surface, the heating pattern is also frequently inappropriate, arid the arrangement tends to be unstable due to the patient's gravity. Therefore we attempted an angular arrangement of the electordes to achieve more homogenous and efficient heating for such lesions. In phantom study, both the thermal profile and thermogram established the heating pattern in this unusual angular arrangement of the electrodes at 60degree, 90degree and 120degree angles, respectively. An angular arrangement was also clinically applied to 3 patients. The patients' tolerance was good without significant complication and the thermal distribution was satisfactory. In conclusion, this unusual arrangement of electrodes appears to be promising in the clinical application to the eccentrically located lesions.
Electrodes*
;
Gravitation
;
Heating*
;
Hot Temperature*
;
Humans
;
Skin