1.Spontaneous Testicular Hemorrhagic Necrosis Masquerading as a Testis Tumor .
Seung Hyun BAEK ; Jun Baek PARK ; Yun Hyung JANG ; Yeon Won PARK ; Jin Hyung LEE ; Seung Ki MIN
Korean Journal of Urology 2004;45(9):962-965
Spontaneous testicular hemorrhagic necrosis is a rare disease usually associated with testicular torsion. Partially involved and suspicious testis tumor cases are also defined from orchiectomy specimens. Herein, a spontaneous hemorrhagic necrosis, without any testicular torsion, but with involvement of the whole testicle and epididymis, is reported. A 21 year old patient, who presented with a painless left testicular enlargement of several days duration was believed, based on physical examination, ultrasonography and elevation of serum LDH, to have a testicular tumor. Diagnosis was made only after radical orchiectomy and histopathological examination.
Diagnosis
;
Epididymis
;
Hemorrhage
;
Humans
;
Male
;
Necrosis*
;
Orchiectomy
;
Physical Examination
;
Rare Diseases
;
Spermatic Cord Torsion
;
Testis*
;
Ultrasonography
;
Young Adult
2.Palliative Resection for Incurable Colorectal Cancer.
Dae Hwan KIM ; Moo Jun BAEK ; Nae Kyung PARK ; Moon Soo LEE ; Ok Pyung SONG
Journal of the Korean Society of Coloproctology 1998;14(1):35-40
Despite a recent trend toward increased screening and public awareness for colorectal cancer, 30% of patients present with incurable disease. This study was designed to identify objective criteria that might help surgeons decide which patients with incurable colorectal cancer will benefit from palliative resection. Among 33 patients considered incurable colorectal cancer, twenty one patients underwent palliative resection and twelve patients had bypass surgery. Incidence of postoperative complication after palliative resection was 61.9%(13 cases), and after bypass surgery was 58.3%(7 cases). Among patients treated by palliative resection, one patient required reoperation for postoperative bleeding. The operative mortality after palliative resection was 19%(4 cases), and after bypass surgery was 25%(3 cases). The median survival was 11.4 months for patients treated by palliative resection, and was 9.7 months for patients treated by bypass surgery. These results show that palliative resection can be done safely and effectively in patients with incurable colorectal cancer. We believe this approach improved the quality of the remaining life in these patients.
Colorectal Neoplasms*
;
Hemorrhage
;
Humans
;
Incidence
;
Mass Screening
;
Mortality
;
Postoperative Complications
;
Reoperation
3.A Case of Acardiac Twin.
Hak Youle PARK ; Jun Young SEO ; June Baek SONG ; Tae Sang KIM ; Ik Soo KIM
Korean Journal of Obstetrics and Gynecology 1999;42(10):2371-2376
Acardiac twinning affects 1 in 100 monozygotic twin pregnancies and 1 in 35,000 pregnancies overall. This condition is characterized by the absence or rudimentary development of fetal heart, and associated with various anomaly. The presence of an acardiac twin requires the normal (or "pump") twin to provide circulation for itself, as well as the acardiac sibling. The acardiac malformations are uniformly fatal in the affected twin, and mortality in the co-twin is as high as 55%. The principal perinatal problems associated with acardiac twinning are pump-twin congestive heart failure, maternal hydramnios, and preterm delivery. We recently experienced a case of acardius anceps associated with a normal male infant, so present with a brief review of the literature.
Fetal Heart
;
Heart Failure
;
Humans
;
Infant
;
Male
;
Mortality
;
Polyhydramnios
;
Pregnancy
;
Siblings
;
Twins, Monozygotic
4.Modified Akira Yanai's method for correction of cryptotia.
Seung Keun BAEK ; Oh Kyu CHOI ; Jeong Jun PARK ; Jong Hyun LEE
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(3):499-505
No abstract available.
5.The wormicidal substances of fresh water fishes on Clonorchis sinensis I Preliminary research on the wormicidal substance from mucous substance of Carassius carassius.
Jae Ku RHEE ; Byeong Kirl BAEK ; Byung Zun AHN ; Young Jun PARK
The Korean Journal of Parasitology 1979;17(2):121-126
The present work was to observe the wormicidal effects of the external mucous substance of Carassius carassius and Pseudorasbora parva on cercaria, metacercaria (liberating) and adult of Clonorchis sinensis. The mucous substance which was extracted by ether was separated into various spots on the silica gel thin layer chromatography and separated into various fractions in the silica gel column chromatography, using petroleum ether(30 percent) and chloroform(70 percent) as solvent. R(f) 0.952 value of the silica gel thin layer chromatography and the first fraction (reddish yellow) frorn the silica gel column chromatography of the ether extracts from C. carassius had the wormicidal effect on all of the developing stages of C. sinensis. Cercaria was killed within 14 minutes, metacercaria within 27 minutes and adult 2.5 hours by the first fraction. But in the normal saline solution (control) and in the other fraction, cercaria and metacercaria were alive more than 24 hours and adult more than 72 hours. The extracts from the mucous substance of P. parva that is well penetrated by cercaria had no wormicidal effect on them.
parasitology-helminth-trematoda
;
clonorchiasis-Clnorchis sinensis
;
metacercaria
;
Carassius carassius
;
Pseudorasbora parva
;
mucous substance
;
chromatography
6.Fracture of the Body of the hamate: A case report
Yung Khee CHUNG ; Myung Ryool PARK ; Jung Han YOO ; Baek Yong SONG ; Jun Tae KIM
The Journal of the Korean Orthopaedic Association 1995;30(1):166-169
The hamate fracture is very rare condition. The mechanism of fracture may be attributed to direct trauma by rolling down. We have experienced a case of fracture of the body of the hamate bone. It was treated by conservative method. The result was satisfactory with conservative treatment without traumatic arthritis, nonunion, ulnar nerve palsy, flexor digitorum profundus tendinitis & limitation of motion. A case of fracture of the body of the hamate bone is reported with brief review of literature.
Arthritis
;
Hamate Bone
;
Methods
;
Tendinopathy
;
Ulnar Neuropathies
7.Lengthening and Deformity Correction of the Forearm by Callotasis.
Goo Hyun BAEK ; Moon Sang CHUNG ; Jin Ho KIM ; Deuk Soo JUN ; Yong Bum PARK
The Journal of the Korean Orthopaedic Association 1998;33(5):1254-1262
Seven patients with average age of 15years and 6 months (range: 8 years and 11 months 25 years and 6 months) underwent forearm lengthening by callotasis. The indications for lengthening were shortening and/or deformity of the forearm due to exostosis of the distal ulna in three cases, growth disturbance due to physeal injury of the distal radius in three, congenital radial dislocation in one. Three had lengthening of the radius, three of the ulna and one of both the radius and the ulna. The average lengthening achieved was 3.8 cm (3.5 - 4.0) in radius, 2.7 cm (2.3 - 3.0) in ulna. Complications encountered were pin tract infection in two cases, nonunion in one and temporary nerve palsy in one. All of these complications were recovered completely without any residua. Retrospective review after average 41 months of follow-up (range: 36 to 78) showed satisfactory improvement in appearance and function. Callotasis was considered as one of the safe and reliable treatment methods for bone lengthening and deformity correction of the forearm.
Bone Lengthening
;
Congenital Abnormalities*
;
Dislocations
;
Exostoses
;
Follow-Up Studies
;
Forearm*
;
Humans
;
Osteogenesis, Distraction*
;
Paralysis
;
Radius
;
Retrospective Studies
;
Ulna
8.Discriminant analysis between frmoral anteversion, range of motion of lower extremity and intoeing gait.
Kwang Jin RHEE ; Chan Hee PARK ; Keun Baek LEE ; Jun Young YANG
The Journal of the Korean Orthopaedic Association 1993;28(3):1099-1105
No abstract available.
Discriminant Analysis*
;
Gait*
;
Lower Extremity*
;
Range of Motion, Articular*
9.Shear bond strength of the three different kinds of resin cement on CAD/CAM ceramic inlay.
Chul Woo BAEK ; Cheol Woo PARK ; Jun Sub PARK ; Jae Jun RYU
The Journal of Korean Academy of Prosthodontics 2013;51(1):20-26
PURPOSE: The purpose of this study was to evaluate the bond strengths between the latest CAD/CAM ceramic inlay and various resin cements which are used primarily for esthetic restoration. MATERIALS AND METHODS: Cylindrical ceramic blocks(Height: 5 mm, diameter: 3 mm) were fabricated by using Cerec3 and bonded on the dentin of the ninety extracted caries-free molars using three different kinds of resin cement(Unicem(R), Biscem(R), and Variolink II(R)) according to the manufacturer's instructions. Ninety specimens were divided into 3 groups according to three different kinds of resin cement. Half of each group were conducted thermocycling under the conditions of the 5 - 55degrees C, 5,000 cycle but the other half of them weren't. All specimens were kept in normal saline 37degrees C, for 24 hours before measuring the bond strength. The shear bond strength was measured by Universal testing machine with a cross head speed of 0.5 mm/min. The results were analyzed statistically by t-test and one-way ANOVA. RESULTS: Unicem(R) group showed the highest shear bond strength despite a slight decline by thermocycling. The shear bond strength of Unicem(R) group and ValiolinkII(R) group were significantly influenced by thermocycling, whereas Biscem(R) group was not influenced (P<.05). There were no significant differences in the bond strength between the three groups without thermocycling, but there was significant differences between Unicem(R) group and Valiolink II(R) group with thermocycling(P<.05). CONCLUSION: It has been shown to be clinically effective when the self-adhesive resin cements Unicem(R) and Biscem(R) were used instead of the etch-and-rinse resin cement Valiolink II(R) during the bonding of CAD/CAM ceramic inlay restorations with teeth.
Ceramics
;
Collodion
;
Dentin
;
Head
;
Inlays
;
Molar
;
Resin Cements
;
Tooth
10.An Experimental Study for Minimum Level of Decalcification to Detect the Osteolytic Bone Metastasis of Long Bone on Plain Radiography.
Jun Ho BAEK ; Il Hyung PARK ; Sung Hwa SEO
Journal of Bone Metabolism 2016;23(3):135-142
BACKGROUND: In 1951, Ardran reported that metastatic bone lesions could be detectable on plain radiography with 30% to 50% of decalcification. Authors performed experimental study for minimum level of decalcification to detect the osteolytic bone metastasis of long bone with recent technique of radiographs. METHODS: One pair of fibula and humerus from two cadavers was cut into specimen 1 inch in length. Distal half of specimen was dipped into hydrochloride (HCl) with 15 min interval. All 16 specimens were checked by film-type radiography (FR), computed radiography (CR), digital radiography (DR). To exclude inter-observer's variance, 3 radiologists evaluated images. Calcium amount before and after decalcification was measured and expressed in percentage of decalcification. RESULTS: Osteolytic changes were detectable with 11% to 16% of decalcification for fibula and 3% to 8% for humerus on plain radiography with FR, CR, and DR. CONCLUSIONS: Our study showed that minimum of 3% and maximum of 16% of decalcification is necessary when osteolytic metastatic bone lesions of long bone could be detected on plain radiography.
Cadaver
;
Calcium
;
Decalcification Technique
;
Fibula
;
Humerus
;
Neoplasm Metastasis*
;
Osteolysis
;
Radiographic Image Enhancement
;
Radiography*