1.A Case of Bilateral Wilms' Tumor.
Hyun Jun CHO ; In Sang JEON ; Hyo Seop AHN ; Hwang CHOI
Journal of the Korean Pediatric Society 1990;33(1):117-123
No abstract available.
Wilms Tumor*
2.CT findings of fibromatosis.
Hak Nam KIM ; Yeon Hwa CHOI ; Hyun Jun SHIN
Journal of the Korean Radiological Society 1991;27(2):281-285
No abstract available.
Fibroma*
3.The results of the Operative Treatment for the Traumatic Spondylolisthesis of Axis: Anterior plate fixation and transpedicular screw fixation
Jae Yoon CHUNG ; Jun Young SONG ; Bo Hyun CHOI
The Journal of the Korean Orthopaedic Association 1994;29(3):965-971
Traumatic spondylolisthesis of the axis is the fracture of both pedicles and is called commonly as hangman' s fracture. The fractures with the anterior displacement more than 3mm and the angulation, more than 11 degrees were classified as unstable and the surgical methods were recommended for the treatment of the fractures. As for the surgical methods, anterior C2-3 fusion with plate fixation or transpedicular screw fixation were used. However, the differences between the clinical results of both methods were not reported in the literatures. In order to clarisy the clinical results of both methods, the authors evaluated the clinical results of 11 patients treated by anterior plate fixation and 7 patients treated by transpedicular fixation who were operated on between Mar. 1987 and,Jan: 1992. Minimum follow-up period was 12 months. 1. As the surgical complications, two cases of transient dysphagia in anterior fixation group and three cases of malinserted screw in transpedicular fixation group were observed. 2. Limitation of rotatory neck motion, less than 20 degrees in one direction was observed in four cases of transpedicular fixation group. 3. Anterior angulation, more than 10 degrees was noted in three cases of transpedicular group. 4. Mild intermittent neck pain was observed in two cases of anterior fixation group and two cases of transpedicular fixation group. Constant neck pain was present in three cases of transpedicular fixation group. 5. Over-all clinical results were excellent or good in all of anterior fixation group, and in four of seven transpedicular group. Although the clinical materials were limited in number, method of anterior plate fixation was recommended by the authors in the management of traumatic spondylolisthesis of axis, because of the easier technique and the better clinical results than the transpedicular screw fixation.
Deglutition Disorders
;
Follow-Up Studies
;
Humans
;
Methods
;
Neck
;
Neck Pain
;
Spine
;
Spondylolisthesis
4.The radiographic findings of cerebello-pontine angle lesions
Young Hwan JUN ; Byung Ihn CHOI ; Kee Hyun CHANG
Journal of the Korean Radiological Society 1983;19(2):314-323
Thirty-five cerebello-pontine angle lesions were diagnosed with simple skull X-ray, CT, and angiography atSeoul National University Hospital from Sept. 1978 through Aug. 1982. The radiographic findings were analysed withemphasis on the differential points of CT among the major three cerebello-pontine angle tumors; acousticneurinoma, meningioma and epidermoid. The results are as follows; 1. Among the 35 cases of cerebello-pontine anglelesions, 19 cases were acoustic neurinoma. 4 cases miningioma, 4 cases epidermoid, 2 cases metastasis, 1 caseschoroid plexus papilloma, 1 case arteriovenous malformation, and 3 cases intra-axial posterior fossa tumors. 2.The characteristic radiographic findings of acoustic neurinoma were windening of internal auditory canal, petrousbone erosion, posterior extension of tumor at the level of internal autidory canal, hypo or isodense mass onpre-contrast CT with high enhancement after intravenous contrast infusion, and cystic change within the mass. 3.Meningioma shows anterior extenstion of the lesion at the level of internal auditory canal, broad base and obtuseangle sign of the lesion with petrous bone, hyperdense mass on precontrast CT. with highly homogeneous enhancementafter intravenous contrast infusion. 4. Epidermoid characteristically shows hypodense mass on precontrast CT withno change after intravenous contrast infusion. 5. The differential points of the major 3 cerebello-pontine tumorswere bone change, mass location, attenuation , degree of attachment to petrous bone, and cystic change.
Angiography
;
Arteriovenous Malformations
;
Infratentorial Neoplasms
;
Meningioma
;
Neoplasm Metastasis
;
Neuroma, Acoustic
;
Papilloma
;
Petrous Bone
;
Skull
5.A Consideration for Metallic Failure of internal Fixation Devices in Treatment of Long Bone Fractres
Soo Kyoon RAH ; Chang Uk CHOI ; Hak Hyun KIM ; Wan Surk CHOI ; Pil Jun CHEONG
The Journal of the Korean Orthopaedic Association 1983;18(4):709-719
The ten cases of metallic failure after I-M nailing & plate fixation who were treated at depart tment of orthopaedic surgery, Soon Chun Hyang University during nine years from June, 1974 to May, 1983 were clinically analysed. The survey as summerized as follows: l. Of the ten cases, six cases were seen the breakage of plate, two cases were the loosening of screw, one case was the brakage of nail & one case was the angulation of nail. Of the six cases of plates, two cases were DCP, three cases were ordinary plate & one case was Thornton plate. 2. Of the six cases who metallic failure occurred as plate failure, five cases were the femur fractures, one case was the tibia fracture. All case who metallic failure occurred as nail failure were ferumr fractures. Of the two cases of screw loosening, one case was the fermur fracture. One case was the tibia fracture. 3. The average interval between operation and metallic failure. 1) The plate breakage was 6.3 months. 2) The screw loosening was 7 months. 3) The nail breakage was 6 months. 4) The nail angulation was 8 months. 4. The causes of failure after internal fixation. 1) The causes of plate breakage.
Femur
;
Fractures, Comminuted
;
Internal Fixators
;
Overweight
;
Tibia
;
Weight-Bearing
6.Neonatal Gastric Web Located in the Body of Stomach: A Case Report.
Jun Hyun YUN ; Hyun Jun CHOI ; Ji Hyeo CHOI ; Ju Hyun IM ; Se Jong KIM ; Byung Ran PARK
Journal of the Korean Radiological Society 2006;54(1):39-41
Gastric web is a rare gastric anomaly and almost all the reported cases have been located in the distal antrum. We experienced a case of neonatal gastric web that was located in the body of stomach, and we report the findings of the upper gastrointestinal series and ultrasonography.
Stomach*
;
Ultrasonography
7.Recurrent Pediatric Mesenteroaxial Gastric Volvulus: Case Report Focusing on Ultrasonographic and CT Findings.
Hyun Jun CHOI ; Jun Hyun YUN ; Ji Hyeo CHOI ; Ju Hyun IM ; Se Jong KIM ; Byung Ran PARK
Journal of the Korean Radiological Society 2004;51(5):559-562
Gastric volvulus is a rare condition, and it is classified as the organoaxial or mesentericaxial type according to the axis of rotation. We experienced 1 case of pediatric recurrent mesenteroaxial gastric volvulus and we report here the ultrasonographic and CT findings.
Axis, Cervical Vertebra
;
Stomach Volvulus*
8.Multiseptate Gallbladder in a Neonate: A Case Report.
Jun Hyun YUN ; Hyun Jun CHOI ; Ji Hyeo CHOI ; Ju Hyun IM ; Se Jong KIM ; Byung Ran PARK
Journal of the Korean Society of Medical Ultrasound 2005;24(3):119-121
Multiseptate gallbladder is a very rare congenital malformation, and has never been reported in a neonate. We present the first published ultrasonographic findings of multiseptate gallbladder in a neonate.
Gallbladder*
;
Humans
;
Infant, Newborn*
9.A Case of Semicircular Lipoatrophy.
Sook Hyun KONG ; Jun Young SEONG ; Seok Hyun HAN ; Yu Sung CHOI ; Ho Seok SUH
Korean Journal of Dermatology 2017;55(1):70-71
No abstract available.
10.Effects of Electroacupuncture with Different Frequencies on the Spinal c-fos and Inotropic Glutamate Receptor Expression in Carrageenan-injected Rat.
Jun Hyuk LEE ; Yung Hyun CHOI ; Byung Tae CHOI
Korean Journal of Physical Anthropology 2004;17(1):11-18
We investigated the comparative effects of electroacupuncture (EA) with different frequency on the spinal c-fos and inotropic glutamate receptor expression in carrageenan-injected rats. Bilateral EA stimulation with 2, 15 and 120 Hz were delivered at those acupoints corresponding to Zusanli and Sanyinjiao in man via the needles. The inhibitory effects of the EA on the inflammatory process were investigated in the central nociceptive sites by immunohistochemical analysis. Three hours after carrageenan injection, the number of c-fos-like immunoreactive (LI) neurons was significantly increased in all layers of the ipsilateral spinal cord at L4-5 segment. But these immunoreactive neurons were markedly reduced in the spinal gray matter, especially in the superficial laminae, by all kinds of EA stimulation. The number of NMDA (NR-1 and NR-2A) and AMPA receptors (GluR-1, GluR-2/3) -LI neurons was also increased by carrageenan injection. But NR-2A-LI neuron was significantly reduced in superficial laminae of dorsal horn by 2 Hz EA stimulation. While GluR-1-LI neuron of 15 Hz and 120 Hz EA was increased in the nucleus proprius compared with carrageenan-injected group, GluR-2/3-LI neuron of these EA stimulated groups significantly reduced in superficial laminae of dorsal horn. In conclusion, EA treatment can attenuate spinal c-fos expression in carrageenan injected rats and regulates spinal inotropic glutamate receptor expression.
Acupuncture Points
;
alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic Acid
;
Animals
;
Carrageenan
;
Electroacupuncture*
;
Glutamic Acid*
;
Horns
;
N-Methylaspartate
;
Needles
;
Neurons
;
Rats*
;
Receptors, AMPA
;
Receptors, Glutamate*
;
Spinal Cord