1.One Case of Primary Malignant Mixed M llerian Tumor of the Ovary.
Su Hyun KWON ; Dong Yoon NAM ; Tae Heon KIM ; Jung Hwan YOON ; Chi Heum CHO ; Soon Do CHA
Korean Journal of Obstetrics and Gynecology 2001;44(3):625-628
Malignant mixed m llerian tumor (MMMT) of the ovary is very rare neoplasm consisting of both a sarcomatous and carcinomatous component and represent is fewer than 1% of all ovarian malignancies. Characteristically, ovarian MMMTs follow an aggressive clinical course, and long-term survival is unusual. Almost all MMMTs are found in postmenopausal women, often with low parity and usually in an advanced stage. Stage has been recognized as the single most important prognostic factors. However, a major improvement in prognosis for this rare malignancy has not yet been achieved. The authors have experienced one case of primary malignant mixed m llerian tumor of the ovary and report our experience with a brief review of literature.
Female
;
Humans
;
Ovary*
;
Parity
;
Prognosis
2.Does Multiphasic Contrast Enhanced Fluid Attenuated Inversion Recovery Magnetic Resonance Imaging Enhance the Detectability of Small Intracerebral Metastases?
Jung Hwan KIM ; Kyung Sik YI ; Chi Hoon CHOI ; Seung Tae WOO ; Sang Hoon CHA
Journal of the Korean Radiological Society 2018;78(3):179-189
PURPOSE:
To determine adequate timing of acquisition of contrast-enhanced fluid attenuated inversion recovery (FLAIR) by using multiphasic contrast-enhanced FLAIR magnetic resonance imaging (MRI) and to evaluate added value in detecting small intracerebral metastases 5 mm or less.
MATERIALS AND METHODS:
Twenty-nine patients, that underwent multiphasic contrast-enhanced FLAIR MRI and contrast-enhanced T1 weighted image (T1WI) were included and total number of small intracerebral metastases was 131. Sensitivity, specificity and accuracy of lesion detection were evaluated. Contrast ratio (CR) and enhancement ratio of each lesion were compared and analyzed among each imaging sequence.
RESULTS:
Sensitivity, specificity and accuracy of lesion detection were increased when contrast-enhanced FLAIR was added to contrast-enhanced T1WI. Area of under receiver operating characteristic curve significantly increased by addition of contrast-enhanced FLAIR than using contrast-enhanced T1WI alone (p < 0.05). CR was significantly higher in contrast-enhanced T1WI than FLAIR (p < 0.001). All of the above results were not different according to time of acquisition of contrastenhanced FLAIR.
CONCLUSION
There was advantage of conducting contrast-enhanced FLAIR MRI, but multiphasic contrast-enhanced FLAIR did not provide additional information for detection of small intracerebral metastases compared with single-phase FLAIR MRI.
3.A Case of Catamenial Hemoptysis Treated by Bronchial Artery Embolization.
Suk Pyo SHIN ; Chi Young PARK ; Ji Hyun SONG ; Hong Min KIM ; Daniel MIN ; Sang Hwan LEE ; San Ha KANG ; Gyeong Sik JEON ; Ji Hyun LEE
Tuberculosis and Respiratory Diseases 2014;76(5):233-236
Catamenial hemoptysis is a rare condition, characterized by recurrent hemoptysis associated with the presence of intrapulmonary or endobronchial endometrial tissue. Therapeutic strategies proposed for intrapulmonary endometriosis with catamenial hemoptysis consist of medical treatments and surgery. Bronchial artery embolization is a well-established modality in the management of massive or recurrent hemoptysis, but has seldom been used for the treatment of catamenial hemoptysis. We report a case of catamenial hemoptysis associated with pulmonary parenchymal endometriosis, which was successfully treated by a bronchial artery embolization.
Bronchial Arteries*
;
Embolization, Therapeutic
;
Endometriosis
;
Female
;
Hemoptysis*
4.The effect of salinomycin on ovarian cancer stem-like cells.
Hyewon CHUNG ; Yu Hwan KIM ; Myoung KWON ; So Jin SHIN ; Sang Hoon KWON ; Soon Do CHA ; Chi Heum CHO
Obstetrics & Gynecology Science 2016;59(4):261-268
OBJECTIVE: The identification of cancer stem-like cells is a recent development in ovarian cancer. Compared to other cancer cells, cancer stem-like cells present more chemo-resistance and more aggressive characteristics. They play an important role in the recurrence and drug resistance of cancer. Therefore, the target therapy of cancer stem-like cell may become a promising and effective approach for ovarian cancer treatment. It may also help to provide novel diagnostic and therapeutic strategies. METHODS: The OVCAR3 cell line was cultured under serum-free conditions to produce floating spheres. The CD44⁺CD117⁺ cell line was isolated from the human ovarian cancer cell line OVCAR3 by using immune magnetic-activated cell sorting system. The expression of stemness genes such as OCT3/4, NANOG and SOX2 mRNA were determined by reverse transcription polymerase chain reaction. OVCAR3 parental and OVCAR3 CD44⁺CD117⁺ cells were grown in different doses of paclitaxel and salinomycin to evaluate the effect of salinomycin. And growth inhibition of OVCAR3 CD44+CD117+ cells by paclitaxel combined with salinomycin was determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. RESULTS: Tumor spheroids generated from the OVCAR3 cell line are shown to have highly enriched CD44 and CD117 expression. Treatment with a combination of paclitaxel and salinomycin demonstrated growth inhibition of OVCAR3 CD44+CD117+ cells. CONCLUSION: The present study is a detailed investigation on the expression of CD44 and CD117 in cancer stem cells and evaluates their specific tumorigenic characteristics in ovarian cancer. This study also demonstrates significant growth inhibition of cancer stem-like cells by paclitaxel combined with salinomycin. Identification of these cancer stem-like cell markers and growth inhibition effect of salinomycin may be the next step to the development of novel target therapy in ovarian cancer.
Cell Line
;
Drug Resistance
;
Humans
;
Neoplastic Stem Cells
;
Ovarian Neoplasms*
;
Paclitaxel
;
Parents
;
Polymerase Chain Reaction
;
Recurrence
;
Reverse Transcription
;
RNA, Messenger
5.A Case of Collagenofibrotic Glomerulopathy with Characteristic Electron Microscopic and Immunohistochemistry Findings.
Chi Weon KIM ; Hyo Sang KIM ; Ran Hui CHA ; Sun Moon KIM ; Kook Hwan OH ; Kyung Chul MOON ; Yon Su KIM
Korean Journal of Nephrology 2006;25(5):823-827
Collagenofibrotic glomerulopathy is a relatively rare glomerular disease characterized by the accumulation of spiraled frayed collagen fibrils in mesangial and subendothelial areas. Clinically, patients with the disease usually present with moderate proteinuria and edema. They tend to have hypertension and their renal function deteriorates slowly. We report the case of a patient with collagenofibrotic glomerulopathy who also had Takayasus arteritis and presented with hypertension, proteinuria and dyspnea on exertion. Electron microscopy of the renal biopsy revealed massive accumulation of peculiar collagen fibers and immunohistology using monoclonal antibodies to collagen type III revealed positive stain in glomerular tufts.
Biopsy
6.A Case of Collagenofibrotic Glomerulopathy with Characteristic Electron Microscopic and Immunohistochemistry Findings.
Chi Weon KIM ; Hyo Sang KIM ; Ran Hui CHA ; Sun Moon KIM ; Kook Hwan OH ; Kyung Chul MOON ; Yon Su KIM
Korean Journal of Nephrology 2006;25(5):823-827
Collagenofibrotic glomerulopathy is a relatively rare glomerular disease characterized by the accumulation of spiraled frayed collagen fibrils in mesangial and subendothelial areas. Clinically, patients with the disease usually present with moderate proteinuria and edema. They tend to have hypertension and their renal function deteriorates slowly. We report the case of a patient with collagenofibrotic glomerulopathy who also had Takayasus arteritis and presented with hypertension, proteinuria and dyspnea on exertion. Electron microscopy of the renal biopsy revealed massive accumulation of peculiar collagen fibers and immunohistology using monoclonal antibodies to collagen type III revealed positive stain in glomerular tufts.
Biopsy
7.N-butyl Cyanoacrylate Embolotherapy for Acute Gastroduodenal Ulcer Bleeding.
Young Ho CHOI ; Ji hoon KIM ; Young Hwan KOH ; Daehee HAN ; Joo Hee CHA ; Chang Kyu SEONG ; Chi Sung SONG
Journal of the Korean Radiological Society 2007;56(1):33-39
PURPOSE: Various embolic agents have been used for embolization of acute gastrointestinal (GI) arterial bleeding. N-butyl cyanoacrylate (NBCA) is not easy to handle, but it is a useful embolic agent. In this retrospective study, we describe our experience with NBCA embolization of acute gastroduodenal ulcer bleeding. MATERIALS AND METHODS: NBCA embolization was performed in seven patients with acute upper GI arterial bleeding; they had five gastric ulcers and two duodenal ulcers. NBCA embolization was done in the left gastric artery (n = 3), right gastric artery (n = 2), gastroduodenal artery (n = 1) and pancreaticoduodenal artery (n = 1). Coil was used along with NBCA in a gastric bleeding patient because of difficulty in selecting a feeding artery. NBCA was mixed with Lipiodol at the ratio of 1:1 to 1:2. The blood pressure and heart rate around the time of embolization, the serial hemoglobin and hematocrit levels and the transfusion requirements were reviewed to evaluate hemostasis and rebleeding. RESULTS: Technical success was achieved in all the cases. Two procedure-related complications happened; embolism of the NBCA mixture to the common hepatic artery occurred in a case with embolization of the left gastric artery, and reflux of the NBCA mixture occurred into the adjacent gastric tissue, but these did not cause any clinical problems. Four of seven patients did not present with rebleeding, but two had rebleeding 10 and 16 days, respectively, after embolization and they died of cardiac arrest at 2 months and 37 days, respectively. One other patient died of sepsis and respiratory failure within 24 hours without rebleeding. CONCLUSION: NBCA embolization with or without other embolic agents could be safe and effective for treating acute gastroduodenal ulcer bleeding.
Arteries
;
Blood Pressure
;
Cyanoacrylates*
;
Duodenal Ulcer
;
Embolism
;
Embolization, Therapeutic*
;
Ethiodized Oil
;
Heart Arrest
;
Heart Rate
;
Hematocrit
;
Hemorrhage*
;
Hemostasis
;
Hepatic Artery
;
Humans
;
Peptic Ulcer*
;
Respiratory Insufficiency
;
Retrospective Studies
;
Sepsis
;
Stomach Ulcer
8.N-butyl Cyanoacrylate Embolotherapy for Acute Gastroduodenal Ulcer Bleeding.
Young Ho CHOI ; Ji hoon KIM ; Young Hwan KOH ; Daehee HAN ; Joo Hee CHA ; Chang Kyu SEONG ; Chi Sung SONG
Journal of the Korean Radiological Society 2007;56(1):33-39
PURPOSE: Various embolic agents have been used for embolization of acute gastrointestinal (GI) arterial bleeding. N-butyl cyanoacrylate (NBCA) is not easy to handle, but it is a useful embolic agent. In this retrospective study, we describe our experience with NBCA embolization of acute gastroduodenal ulcer bleeding. MATERIALS AND METHODS: NBCA embolization was performed in seven patients with acute upper GI arterial bleeding; they had five gastric ulcers and two duodenal ulcers. NBCA embolization was done in the left gastric artery (n = 3), right gastric artery (n = 2), gastroduodenal artery (n = 1) and pancreaticoduodenal artery (n = 1). Coil was used along with NBCA in a gastric bleeding patient because of difficulty in selecting a feeding artery. NBCA was mixed with Lipiodol at the ratio of 1:1 to 1:2. The blood pressure and heart rate around the time of embolization, the serial hemoglobin and hematocrit levels and the transfusion requirements were reviewed to evaluate hemostasis and rebleeding. RESULTS: Technical success was achieved in all the cases. Two procedure-related complications happened; embolism of the NBCA mixture to the common hepatic artery occurred in a case with embolization of the left gastric artery, and reflux of the NBCA mixture occurred into the adjacent gastric tissue, but these did not cause any clinical problems. Four of seven patients did not present with rebleeding, but two had rebleeding 10 and 16 days, respectively, after embolization and they died of cardiac arrest at 2 months and 37 days, respectively. One other patient died of sepsis and respiratory failure within 24 hours without rebleeding. CONCLUSION: NBCA embolization with or without other embolic agents could be safe and effective for treating acute gastroduodenal ulcer bleeding.
Arteries
;
Blood Pressure
;
Cyanoacrylates*
;
Duodenal Ulcer
;
Embolism
;
Embolization, Therapeutic*
;
Ethiodized Oil
;
Heart Arrest
;
Heart Rate
;
Hematocrit
;
Hemorrhage*
;
Hemostasis
;
Hepatic Artery
;
Humans
;
Peptic Ulcer*
;
Respiratory Insufficiency
;
Retrospective Studies
;
Sepsis
;
Stomach Ulcer
9.A Case of CD5 Negative Chronic Lymphocytic Leukemia.
Keumrock HWANG ; Chan Jeoung PARK ; Seo Jin PARK ; Sungsoo JANG ; Hyun Sook CHI ; Choong Hwan CHA ; Joo Ryung HUH ; Cheol Won SUH
Korean Journal of Hematology 2009;44(4):255-260
Neoplastic lymphoid cells of chronic lymphocytic leukemia (CLL) typically co-express CD5 and CD23. CD5-negative CLL is a rare variant of CLL; only 1 case of it has been reported in Korea. We describe a case of CD5-negative CLL. A 48-year-old female complained of a palpable neck mass that had been present for over 1 year. The initial WBC count was 7,300/microliter, with 69% lymphocytes. A CT scan revealed multiple enlarged lymph nodes, both of each in the neck, axilla, and common iliac areas. The athologic results of the cervical lymph node was consistent with small lymphocytic lymphoma, of which tumor cells do not express CD5. In a bone marrow study, neoplastic lymphoid cells comprise 34.8% of all nucleated cells, which showed small size, round nuclei with clumped chromatin, and sparse cytoplasm. Immunophenotyping of small lymphoid cells displayed phenotypes that were CD45-, CD23-, CD20-, and CD19-positive, but CD5-negative. The patient was diagnosed with CD5-negative CLL, and has been followed up for 2.5 years after chemotherapy.
Antigens, CD5
;
Axilla
;
Bone Marrow
;
Chromatin
;
Cytoplasm
;
Female
;
Humans
;
Immunophenotyping
;
Korea
;
Leukemia, Lymphocytic, Chronic, B-Cell
;
Lymph Nodes
;
Lymphocytes
;
Middle Aged
;
Neck
;
Phenotype
10.Immediate Breast Reconstruction Does Not Have a Clinically Significant Impact on Adjuvant Treatment Delay and Subsequent Survival Outcomes
Seung Ho BAEK ; Soon June BAE ; Chang Ik YOON ; So Eun PARK ; Chi Hwan CHA ; Sung Gwe AHN ; Young Seok KIM ; Tai Suk ROH ; Joon JEONG
Journal of Breast Cancer 2019;22(1):109-119
PURPOSE: The use of immediate breast reconstruction (IBR) has been debated because it may be a causative factor in adjuvant treatment delay and may subsequently increase the probability of recurrence. We investigated whether IBR was related to adjuvant treatment delay and survival outcomes. METHODS: We retrospectively analyzed the duration from operation to adjuvant treatment administration and survival outcomes according to IBR status among patients with breast cancer who underwent mastectomy followed by adjuvant chemotherapy from January 2005 to December 2014. Propensity score matching was performed to balance the clinicopathologic baseline characteristics between patients who did and did not undergo IBR. RESULTS: Of 646 patients, 107 (16.6%) underwent IBR, and the median follow-up was 72 months. The median duration from surgery to adjuvant chemotherapy was significantly longer in patients who underwent IBR than in those who did not (14 vs. 12 days, respectively, p = 0.008). Based on propensity score matching, patients who underwent IBR received adjuvant therapy 3 days later than those who did not (14 vs. 11 days, respectively, p = 0.044). The duration from surgery to post-mastectomy radiation therapy (PMRT) did not significantly differ between the 2 groups. Local recurrence-free survival, regional recurrence-free survival, systemic recurrence-free survival, and overall survival were also not significantly different between the 2 groups (p = 0.427, p = 0.445, p = 0.269, and p = 0.250, respectively). In the case-matched cohort, survival outcomes did not change. CONCLUSION: IBR was associated with a modest increase in the duration from surgery to chemotherapy that was statistically but not clinically significant. Moreover, IBR had no influence on PMRT delay or survival outcomes, suggesting that it is an acceptable option for patients with non-metastatic breast cancer undergoing mastectomy.
Breast Implants
;
Breast Neoplasms
;
Breast
;
Chemotherapy, Adjuvant
;
Cohort Studies
;
Drug Therapy
;
Female
;
Follow-Up Studies
;
Humans
;
Mammaplasty
;
Mastectomy
;
Propensity Score
;
Radiotherapy, Adjuvant
;
Recurrence
;
Retrospective Studies