1.Giant Cell Tumor of the Patella: Report of One Case
Myung Chul YOU ; Suck Hyun LEE ; Hyun Soo KIM
The Journal of the Korean Orthopaedic Association 1977;12(2):247-250
The giant cell tumor is a primary. neoplasm of bone characterized histollogically by a vascularized network of plumpish or ovoid stromal cells heavily interposed with multinucleated giant cells. The majority of cases occur in patients between 20 and 40 years old and in the long tubular bones, particuarly in proximity to the epiphysis. A rare case of giant cell tumor involving the patella was recently experienced by authors. Case summary with brief review of reference is presented.
Epiphyses
;
Giant Cell Tumors
;
Giant Cells
;
Humans
;
Patella
;
Stromal Cells
2.Microsurgical Nerve Graft in Traumatic Ulnar Defect
Myung Chul YOU ; Hyun Soo KIM ; Young Nam BANG
The Journal of the Korean Orthopaedic Association 1978;13(3):513-516
One of the most difficult problems confronting the orthopedic surgeon today is what to do when faced with a large defect in a peripheral nerve. Recent advances in engineering and neurophysiology have improved our technical ability to understand the consequences of severing a nerve. We have treated a large traumatic ulnar nerve defect with microsurgical nerve graft technique. In a follow-up study of twehre monthes post surgery, the results were satisfactory.
Follow-Up Studies
;
Neurophysiology
;
Orthopedics
;
Peripheral Nerves
;
Transplants
;
Ulnar Nerve
3.Craniometaphyseal Dysplasia: Report of a Case
Myung Chul YOU ; Suck Hyun LEE ; Hyun Soo KIM ; Shin Hyuk KANG
The Journal of the Korean Orthopaedic Association 1976;11(4):741-745
Craniometaphyseal Dysplasia is characterized by hyperostosis of craniofacial bones, with compression of cranial nerves at the foramina, and by changes in the metaphyses of long bones. The changes in long bones resemble to some degree those seen in pyle's disease, but have cretain differences and significant cranial abnormalities with which differential diagnosis could be made with certainty. An interesting and unusual patient diagnosed Craniometaphyseal Dysplasia was recently experienced by authors. The case report with brief review of literstures in presented.
Cranial Nerves
;
Diagnosis, Differential
;
Humans
;
Hyperostosis
4.Operative treatment of supracondylar-Condylar Fractures of the Femur
Jin Hwan AHN ; Myung Chul YOU ; Suck Hyun LEE ; Hyun Soo KIM ; Shin Hyeok KANG
The Journal of the Korean Orthopaedic Association 1976;11(4):700-708
The previous reports about Supracondylar-Condylar Fracture of the femur which extends to articular surfaces revealed poor results in general, regardless of the methods of treatment. But those results are thought to be much alleviated if they are treated according to the principles of ASIF. Fifteen cases of Supracondylar-condylar fractures of the femur from 13 patients were treated by open reduction and rigid internal fixation during last 3 years at Department of Orthopedic Surgery, Early mobilization of knee joint was permissible in most of the cases without loss of fixation or other complications during convalescence Subsequently, greatifying results were obtained as observed in varying period of follow up days.
Convalescence
;
Early Ambulation
;
Femur
;
Follow-Up Studies
;
Humans
;
Knee Joint
;
Orthopedics
5.Localized Epidermolysis Bullosa Acquisita Limited to the Face.
Myung Hoon LEE ; Ji Young YOO ; You Bum SONG ; Moo Kyu SUH ; Tae Jung JANG ; Soo Chan KIM
Korean Journal of Dermatology 2013;51(12):990-991
No abstract available.
Epidermolysis Bullosa Acquisita*
;
Epidermolysis Bullosa*
6.Various Vein Conduit Modalities for Nerve Regeneration in Rats.
Myung Soo YOUK ; You Sik SHIN ; Hyung Soo KIM ; Young Jin SHIN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2002;29(3):181-187
Over the years, many surgeons have used various natural and synthetic materials to bridge the nerve defect. However, none of these materials has surpassed the effectiveness of the nerve autograft. Among natural materials, a vein graft has been used as conduit for nerve regeneration in both research protocols and clinical situations. Unfortunately, the comparison of various research reports is difficult, for each research has employed a different experimental model and method of evaluation for the study of the nerve regeneration. This study introduced various modifications of the vein graft technique, and investigated several vein graft models in an attempt to find the most effective formulation . Four vein graft models were employed: 1) the empty vein graft, 2) the inside-out pattern vein graft, 3) the vein graft filled with skeletal muscle strips, 4) the inside-out pattern vein graft filled with skeletal muscle strips. Regeneration was assessed with gross appearance, histologic examination and electromyography(EMG). In the vein graft filled with muscle strips, there was the increased axonal diameter, myelin sheath thickness, ratio of myelinated axon to unmyelinated axon, and conduction velocities. The result showed that any vein graft filled with muscle strips is superior to the empty vein graft and the inside-out pattern vein graft model which are not filled with muscle strips. It is concluded that the nerve repair using a vein graft filled with skeletal muscle strips can be effectively employed in the clinical field. Further study should be aimed at the regeneration of a longer distance nerve gap and its clinical application.
Animals
;
Autografts
;
Axons
;
Models, Theoretical
;
Muscle, Skeletal
;
Myelin Sheath
;
Nerve Regeneration*
;
Rats*
;
Regeneration
;
Research Report
;
Transplants
;
Veins*
7.Changes of Serum CEA and CA19-9 Levels According to the Serum Bilirubin Level in Periampullary Cancer Patients Whipple or pylorus preserving pancreatoduodenectomy versus a biliary bypass or a biliary drainage procedure.
Seok Yong RYU ; Sehwan HAN ; Byung Hee YOU ; Myung Soo LEE ; Hong Joo KIM ; Young Duck KIM ; Hong Yong KIM
Journal of the Korean Surgical Society 1998;55(3):382-387
BACKGROUND: Periampullary cancer is a relatively common malignancy, and its incidence is increasing. Prognosis in these patients depends upon resection of the tumor because surgery is the only effective treatment for irradicating the disease. There has, therefore, been a renewed interest in the role of serological markers early diagnostic tools for periampullary cancer. The potential role of serological markers is not limited only to early detection, but may also be of assistance in the difficult clinical dilemma of differentiating periampullary cancer from other diseases. Furthermore, serological markers of periampullary cancer might be used in follow-up patients after treatment, particularly after surgical resection, in order to select those with minimal disease likely to respond better to adjuvant treatment and/or radiotherapy. METHODS: From March 1989 to May 1997, 54 patients were admitted to Sanggye Paik Hospital, InJe University, and had pathologically confirmed periampullary cancer. Of those, 28 patients underwent a biliary bypass or a drainage procedure [Group I], and the others received resection procedures (Whipple's operation or pylorus-preserving pancreatoduodenectomy)[Group II]. Preoperative and postoperative serum levels of bilirubin, carcinoembryonic antigen (CEA), and carbohydrate antigen 19-9(CA19-9) were measured in all patients. We evaluated the relation of the postoperative increase or decrease in those tumor markers to survival, and we discuss the usefulness of those markers as prognostic indicators in periampullary cancer. In this study, we focused on the changes in the CEA and the CA19-9 levels as function of the serum bilirubin concentration change. RESULTS: The bilirubin, CEA, and CA19-9 concentrations decreased significantly in Groups I and II after operation. The correlation between the decreases of the bilirubin and the CEA levels was statistically significant, but that between the bilirubin and CA19-9 had no statistical significance, in spite of the fact that the preoperative and the postoperative tumor marker concentrations had changed markedly. The reason for the statistical insignificance of the CA19-9 result may be the its relatively small sample size and the wide standard variation. The overall median and mean survival time of Group I were 4 months and 11 months, respectively, and those of Group II were 17 months and 21 months. CONCLUSION: We found that the serum the CEA and the CA19-9 levels could be used as a useful prognostic indicator change according to the serum bilirubin concentration even after a biliary drainage procedure and a biliary bypass. We conclude that various biliary bypass and drainage procedures can be effective treatments in periampullary cancer. However, because it is thought that many tumor markers are greatly affected by hyperbilirubinemia, liver dysfunction or cholestasis, further studies of the exact mechanism for the decrease or the increase in the tumor marker level as a function of the serum bilirubin concentration are mandatory. Precise information obtained by using multivariate analysis of large samples is essential for more accurate evaluation.
Biomarkers, Tumor
;
Bilirubin*
;
Carcinoembryonic Antigen
;
Cholestasis
;
Drainage*
;
Humans
;
Hyperbilirubinemia
;
Incidence
;
Liver Diseases
;
Multivariate Analysis
;
Pancreaticoduodenectomy*
;
Prognosis
;
Pylorus*
;
Radiotherapy
;
Sample Size
;
Survival Rate
8.Periocular Tinea Caused by Trichophyton rubrum.
Myung Hoon LEE ; Ji Young YOO ; You Bum SONG ; Moo Kyu SUH ; Gyoung Yim HA ; Jung Ran KIM ; Jong Soo CHOI
Korean Journal of Dermatology 2013;51(12):997-998
No abstract available.
Eyelids
;
Tinea*
;
Trichophyton*
9.Four Unrecorded Aspergillus Species from the Rhizosphere Soil in South Korea
Jun Won LEE ; Sung Hyun KIM ; Young-Hyun YOU ; Young Woon LIM ; Myung Soo PARK
Mycobiology 2021;49(4):346-354
The genus Aspergillus is commonly isolated from various marine and terrestrial environments;however, only a few species have been studied in rhizosphere soil. As part of the Korean indigenous fungal excavation project, we investigated fungal diversity from rhizosphere soil, focusing on Aspergillus species. A total of 13 strains were isolated from the rhizosphere soil of three different plants. Based on phylogenetic analysis of β-tubulin and calmodulin and morphological characteristics, we identified five Aspergillus species. A. calidoustus and A. pseudodeflectus were commonly isolated from the rhizosphere soil. Four species were confirmed as unrecorded species in Korea: A. calidoustus, A. dimorphicus, A. germanicus, and A. pseudodeflecuts. The detailed morphological descriptions of these unrecorded species are provided.
10.Four Unrecorded Aspergillus Species from the Rhizosphere Soil in South Korea
Jun Won LEE ; Sung Hyun KIM ; Young-Hyun YOU ; Young Woon LIM ; Myung Soo PARK
Mycobiology 2021;49(4):346-354
The genus Aspergillus is commonly isolated from various marine and terrestrial environments;however, only a few species have been studied in rhizosphere soil. As part of the Korean indigenous fungal excavation project, we investigated fungal diversity from rhizosphere soil, focusing on Aspergillus species. A total of 13 strains were isolated from the rhizosphere soil of three different plants. Based on phylogenetic analysis of β-tubulin and calmodulin and morphological characteristics, we identified five Aspergillus species. A. calidoustus and A. pseudodeflectus were commonly isolated from the rhizosphere soil. Four species were confirmed as unrecorded species in Korea: A. calidoustus, A. dimorphicus, A. germanicus, and A. pseudodeflecuts. The detailed morphological descriptions of these unrecorded species are provided.