1.Antitumor and Immunomodulatory Activities of Mushroom ( Phellinus linteus ) Cultured on Oak and Mulberry.
Young Sub KIM ; Byung Eui LEE ; Gyu Bong JO ; Yeon Tae LEE ; Dae Jin LEE
Korean Journal of Immunology 2000;22(3):165-171
No abstract available.
Agaricales*
;
Morus*
2.A Case of Normal Spontaneous Vaginal Delivery in a Woman with Bicornuate Uterus 3 weeks after Expelling the Decidual Cast due to Spurious Labor of Contralateral Horn.
Sung Gyu JANG ; Young Ae LEE ; Byung Sub SHIN ; Ha Jung KIM ; Gee Hyung KIM ; Gyu Sub LEE ; Won Hee KIM
Korean Journal of Obstetrics and Gynecology 2000;43(8):1497-1500
3.A Comparative clinical study of Intussusception with Barium or Surgical Reduction.
Hyeon Soo LEE ; Chang Ho HONG ; Ki Sub CHUNG ; Sung Gyu LEE ; Ki Gun OH ; Sung Guk SOHN
Journal of the Korean Pediatric Society 1988;31(9):1146-1152
No abstract available.
Barium*
;
Intussusception*
4.Pseudocapsule of hepatocellular carcinoma: CT and US versus pathologic correlation.
Young Kuk CHO ; Ku Sub YUN ; Moon Gyu LEE ; Yong Ho AUH ; Ghee Young CHOE ; Young Hwa CHUNG ; Sung Gyu LEE
Journal of the Korean Radiological Society 1993;29(3):464-470
The encapsulated hepatocellular (HCC) is a pathologic subtype of HCC. It is a well defined tumor that tends to grow slowly, and has a better prognosis than any other gross forms of HCC. Twenty surgically resected HCC were evaluated retropectively to correlate the thickness of pseudocapsules in pathology with those in computed tomography and ultrasound. At a histologic examination, pseudocapsules of seven cases were composed of two layers, an inner compact fibrous zone and outer loose fibrous zone interlaced with compressed liver parenchyma containing small vessels and newly formed bile ducts. Sonographic thickness and pathologic measurements of pseudocapsule relatively well correlated, but the former slightly overestimated the thickness of pathologic pseudocapsule (r=0.825, y=2.56x-1.23, P<0.05). On the other hand, thickness in CT and pathologic measurement did not correlate well. Thirteen cases showed one layer of pseudocapsule in which two cases were composed of thin layer of compact fibrosis and eleven cases composed of loose fibrosis. There were poor correlations in this group between thickness of pseudocapsules in pathology and those in images. Image overtly overestimated the thickness of the pseudocapsules in pathology. In conclusion, radiologic pseudocapsule of HCC may represent the compressed liver parenchyma as well as the fibrous pseudocapsule.
Bile Ducts
;
Carcinoma, Hepatocellular*
;
Fibrosis
;
Hand
;
Liver
;
Pathology
;
Prognosis
;
Ultrasonography
5.Pseudocapsule of hepatocellular carcinoma: CT and US versus pathologic correlation.
Young Kuk CHO ; Ku Sub YUN ; Moon Gyu LEE ; Yong Ho AUH ; Ghee Young CHOE ; Young Hwa CHUNG ; Sung Gyu LEE
Journal of the Korean Radiological Society 1993;29(3):464-470
The encapsulated hepatocellular (HCC) is a pathologic subtype of HCC. It is a well defined tumor that tends to grow slowly, and has a better prognosis than any other gross forms of HCC. Twenty surgically resected HCC were evaluated retropectively to correlate the thickness of pseudocapsules in pathology with those in computed tomography and ultrasound. At a histologic examination, pseudocapsules of seven cases were composed of two layers, an inner compact fibrous zone and outer loose fibrous zone interlaced with compressed liver parenchyma containing small vessels and newly formed bile ducts. Sonographic thickness and pathologic measurements of pseudocapsule relatively well correlated, but the former slightly overestimated the thickness of pathologic pseudocapsule (r=0.825, y=2.56x-1.23, P<0.05). On the other hand, thickness in CT and pathologic measurement did not correlate well. Thirteen cases showed one layer of pseudocapsule in which two cases were composed of thin layer of compact fibrosis and eleven cases composed of loose fibrosis. There were poor correlations in this group between thickness of pseudocapsules in pathology and those in images. Image overtly overestimated the thickness of the pseudocapsules in pathology. In conclusion, radiologic pseudocapsule of HCC may represent the compressed liver parenchyma as well as the fibrous pseudocapsule.
Bile Ducts
;
Carcinoma, Hepatocellular*
;
Fibrosis
;
Hand
;
Liver
;
Pathology
;
Prognosis
;
Ultrasonography
6.Detectability of Extrahepatic Duct Stones: A Comparison between Nonenhanced and Enhanced CT.
Mi Young KIM ; Ku Sub YUN ; Boo Kyung HAH ; Moon Gyu LEE ; Hyun Chul RHIM ; Yong Ho AUH
Journal of the Korean Radiological Society 1994;30(2):331-335
PURPOSE: A study was performed to compare the detectability of extrahepatic duct stones between nonenhanced and enhanced computed tomography(CT). MATERIALS AND METHODS: Consecutive 30 patients with extrahepatic duct stones were analyzed with special attention to the detectability of stones between nonenhanced and enhanced CT. The extrahepatic duct was further divided into two segments, one above(suprapancereatic) and the other in(intrapancreatic) the head of the pancreas. Conspicuity of the stone was graded as "visible", "suspicious", and "invisible". Three radiologists reviewed the CT images without prior information and determined the location of stone and grade of their conspicuity. RESULTS: The stones were located at the suprapancreatic common duct in 5 patients, intrapancreatic common duct, in 15 patients and both portion of the duct in 10 patients. There was no difference in the detection rate of stones between the two images at suprapancreatic common duct, and was 93%, However, the rate at intrapancreatic common duct was 95% and 64% on nonenhanced and enhanced CT scans, respectively. The overall detection rate was 95% on nonenhance CT and 75% on enhanced CT. CONCLUSION: We concluded that nonenhanced CT was prerequisite to evaluate the extrahepatic duct stones in addition to enhanced CT.
Head
;
Humans
;
Pancreas
;
Tomography, X-Ray Computed
7.CT Features of Appendiceal Mucocele.
Kyung Sub SHINN ; Jae Young BYUN ; Jung Im JUNG ; Young Ha PARK ; Won Jong YU ; Hae Gyu LEE
Journal of the Korean Radiological Society 1995;33(5):757-761
PURPOSE: To evaluate the usefulness of CT features of appendiceal mucocele in the diagnosis and evaluation of complications. MATERIALS AND METHODS: We retrospectively reviewed CT findings and compared with operative findings in 7 cases of pathologically proven appendiceal mucocele. CT findings such as location and extent of the lesion, Issue density, thickness or calcification of the wall, presence of adjacent inflammatory infiltration, and visualization of normal vermiform appendix were analyzed. RESULTS: Appendiceal mucocele was found as homogeneous low density cystic mass adjacent to the cecum, which has no surrounding inflammatory infiltration except in one case of perforation and one case of intussusception. Mean CT number measured in 4 cases was 21 Hounsfield unit. Thin curvilinear calcifications were noted along the cystic wall in 2 cases. Normal vermiform appendix couldn't be demonstrated in all cases. CONCLUSION: Appendiceal mucocele is characterized by homogeneously low density and thin walled cystic tumor adjacent to cecum without surrounding inflammatory infiltration, and absence of normal vermiform appendix on CT. Therefore, CT is valuable in preventing operative complications of appendiceal mucocele.
Appendix
;
Cecum
;
Diagnosis
;
Intussusception
;
Mucocele*
;
Retrospective Studies
8.Indole Derivatives and a Diketopiperazine from Chromobacterium violaceum
Hye Ryeong KIM ; Gyu Sung LEE ; InWha PARK ; Chung Sub KIM
Natural Product Sciences 2024;30(2):130-134
Three indole derivatives (1–3) and a diketopiperazine (4) were isolated from the ethyl acetate extract of Chromobacterium violaceum. Their structures were elucidated based on the analysis of NMR and HR-MS data and by comparing those in the previous literature. The antibacterial activities of the isolated compounds were evaluated against Gram-positive bacteria, including human pathogenic methicillin-resistant Staphylococcus aureus (MRSA), Lacticaseibacillus paracasei subsp. paracasei, and Brevibacterium epidermidis. Compound 1 exhibited moderate antibacterial activity against all the three strains with MIC values ranging from 8.58 to 34.3 μg/mL.
9.Early diagnostic value of the antimycoplasma antibody (IgM) in Mycoplasma pneumoniae pneumonia: A single-center study in 2015
Hyo Jung KOH ; Min Sub KIM ; Kwang Yeon LEE ; Dong Hee KANG ; Seong Gyu LEE ; Yeon Hwa AHN
Allergy, Asthma & Respiratory Disease 2019;7(3):129-136
PURPOSE: Recently, the incidence of refractory Mycoplasma pneumoniae (MP) pneumonia has increased in Korea. Given that its early diagnosis is helpful in selection of the treatment, this study aimed at investigating the value of the antimycoplasma antibody (IgM) for early diagnosis of MP pneumonia. METHODS: A total of 315 children admitted with MP pneumonia from September 2015 to May 2016 were investigated with the IgM and polymerase chain reaction (PCR) for the diagnosis of MP pneumonia. Specifically, patients were grouped into nonrefractory respiratory MP and refractory MP groups according to their response to macrolide therapy. RESULTS: In the 44 PCR-negative seroconversed children, seroconversed IgM was more frequent in the refractory MP group compared with the nonrefractory respiratory MP group with statistical significance (P<0.001). In the 264 IgM-positive children, the time of antibody reaction was more delayed in the refractory MP group compared to the nonrefractory respiratory MP group with statistical significance (P<0.001). CONCLUSION: This study showed that there was a higher incidence of seroconversed IgM and delayed antibody reaction in the refractory MP group. In children with suspect MP pneumonia, follow-up studies of antibody are necessary, even through initial antibody and PCR showed negative findings. In addition, this result may suggest that the diagnosis of refractory MP pneunomia will be helpful in establishing the strategy of the treatment.
Child
;
Diagnosis
;
Early Diagnosis
;
Follow-Up Studies
;
Humans
;
Immunoglobulin M
;
Incidence
;
Korea
;
Mycoplasma pneumoniae
;
Mycoplasma
;
Pneumonia
;
Pneumonia, Mycoplasma
;
Polymerase Chain Reaction
10.Clinical Outcome of Arthroscopic Partial Repair of Large to Massive Posterosuperior Rotator Cuff Tears: Medialization of the Attachment Site of the Rotator Cuff Tendon
Kwang Won LEE ; Gyu Sang LEE ; Dae Suk YANG ; Seong Ho PARK ; Young Sub CHUN ; Won Sik CHOY
Clinics in Orthopedic Surgery 2020;12(3):353-363
Background:
The goal of this study was to evaluate the clinical and radiological outcomes of arthroscopic partial repair with medialization of the attachment site of the rotator cuff tendon and to identify prognostic factors affecting rotator cuff healing in patients with irreparable large to massive posterosuperior rotator cuff tears.
Methods:
Between July 2012 and March 2016, 42 patients with irreparable large to massive posterosuperior rotator cuff tears underwent an arthroscopic partial repair with medialization of the attachment site of the rotator cuff tendon. All patients had a minimum of 2-year follow-up (mean, 35.4 ± 7.3 months). Clinical evaluation was performed using the visual analog scale, the University of California, Los Angeles shoulder rating scale, Constant score, and active range of motion. Radiological evaluation was performed using magnetic resonance imaging and simple radiography.
Results:
Clinical outcomes at the final follow-up improved significantly compared with the preoperative values (all p < 0.001). The failure rate was 23.8% (10/42); however, clinical outcomes significantly improved regardless of cuff healing (all p < 0.001). The mean acromiohumeral distance was 6.5 ± 1.7 mm (range, 3.2–9.7 mm) before surgery and 6.3 ± 1.6 mm (range, 2.8–9.5 mm) at the final follow-up. Preoperative acromiohumeral distance was associated with failure of cuff healing in the univariate analysis (p = 0.043) and multivariate analysis (p = 0.048). A receiver operating characteristic curve was used to determine the predictive cutoff value for the smallest preoperative acromiohumeral distance for successful healing, which was calculated as 5.3 mm.
Conclusions
Despite healing failure, arthroscopic partial repair with medialization can be a possible treatment option for irreparable large to massive posterosuperior rotator cuff tears because of the improvement in clinical outcome. The shorter preoperative acromiohumeral distance was the single most important factor negatively affecting cuff healing, and the likelihood of success of healing might be improved if a repair is performed when the preoperative acromiohumeral distance is < 5.3 mm.