1.A Case of Angiomyofibroblastoma of the Vulva.
Hyang Jeong JO ; Heung Gon KIM ; Hyung Bae MOON
Korean Journal of Obstetrics and Gynecology 2003;46(3):685-688
Angiomyofibroblastoma of the vulva is a recently described mesenchymal tumor. It can be distinguished from an aggressive angiomyxoma by its circumscribed borders, higher cellularity, more numerous blood vessels, the frequent presence of stromal cells, minimal stromal mucin, and rarity of erythrocyte extravasation. We experienced a case of angiomyofibroblastoma of the vulva occurring in a 52-year-old woman. The lesion was a well-circumscribed mass, measuring 4x5 cm in size. Histologically, the mass was characterized by alternating hypercellular and hypocellular edematous zones in which abundant blood vessels were irregularly distributed. The stromal cells were concentrated around the blood vessels, or loosely dispersed in the hypocellular area. Immunohistochemically, the stromal cells were diffusely reactive for vimentin, focally reactive for desmin, but not for smooth muscle actin.
Actins
;
Blood Vessels
;
Desmin
;
Erythrocytes
;
Female
;
Humans
;
Middle Aged
;
Mucins
;
Muscle, Smooth
;
Myxoma
;
Stromal Cells
;
Vimentin
;
Vulva*
2.A Case of Primary Leiomyosarcoma of the Vagina.
Moo Cheol SHIN ; Sang Cheol KWEON ; Heung Gon KIM ; Hyang Jeong JO ; Ki Jung YUN ; Hyung Bae MOON
Korean Journal of Obstetrics and Gynecology 1997;40(1):215-217
The vagina is an infrequent site of primary sarcomas, which are less than 2% of all malignant vaginal neoplasm. The most common malignant mesenchymal tumor of the vagina is rhabdomyosarcoma, but leiomyosarcoma is rare type tumor of the vagina. Microscopically, spinle cells with pleomorphic nuclei and mitotic figures were frequently noted, but cross-striations were not found in the tissue. Alpha-smooth muscle actin and desmin were positive, but sarcomeric actin was negative in the tumor cells. The authors report a case of primary leiomyosarcoma of the vagina with brief literature review.
Actins
;
Desmin
;
Leiomyosarcoma*
;
Rhabdomyosarcoma
;
Sarcoma
;
Vagina*
;
Vaginal Neoplasms
3.Comparative Study of Prolonged Preservation Methods in Rabbit Heart for Transplantation.
Hyung Gon JO ; Su Hyeun KIM ; Song Myung KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1997;30(1):1-10
The successful cardiac transplantation depends partly on the donor heart preservation by a solution that will ensure recovery of myocardial function. The purpose of this study was to perform the evaluation of various preservation solutions and to accumulate the data on the requisites for ideal preservation solution. The experimental setup was the constant pressure Langendorff's perfusion system. Isolated rabbit hearts were perfused for 20minutes with warm Krebs-Henseleit solution, stored for 4 hours in cold preservation solution after cardioplegia, and then were reperfused for 20minutes. The 4 experimental groups were prepared : Hartmann's solution group (group I, control), modified Euro-collins' solution group (group II, MEC), modified University of Wisconsin group (group III , MUW), and CK solution(made by the author) group (group IV, CK). The parameters for assessing the preservation ability were levels of enzymes in freezed myocardial tissues (lactate, creatine kinase-MB and adenosine deaminase), coronary flow, left ventricular developing pressure and dp/dt. In conclusion, the ability of preservation for isolated rabbit heart was excellent in CK solution and modified University of Wisconsin solution, and poor in modified Euro-collins' solution, compared with Hartmann solution. CK solution has low potassium concentrations(34.2mEq/L) and includes various substrates to be salutary on myocardial preservation. This fact may indicates the necessity of further refinements in selection or composition of electrolytes and substrates.
Adenosine
;
Creatine
;
Electrolytes
;
Heart Arrest, Induced
;
Heart Transplantation
;
Heart*
;
Humans
;
Myocardial Ischemia
;
Perfusion
;
Potassium
;
Tissue Donors
;
Wisconsin
4.Primary Transitional Cell carcinoma of the Ovary.
Hyung Bae MOON ; Hyang Jeong JO ; Ki Jung YUN ; Won Cheol HAN ; Byoung Ryun KIM ; Heung Gon KIM
Korean Journal of Gynecologic Oncology and Colposcopy 2001;12(4):349-352
Primary transitional cell carcinoma of the ovary is recently recognized, as one of the main types of ovarian carcinoma. Histologically, it is distinguished from malignant Brenner tumor only in the abscence of benign or proliferative Brenner tumor component. primary transitional cell carcinomas are more aggressive than malignant Brenner tumors. However, Primary transitional cell carcinomas have a better response to chemotherapy than other types of ovarian carcinomas. We report a case of primary transitional cell carcinoma presenting as both ovarian masses that developed in a 60-year-old woman with a brief review of literature.
Brenner Tumor
;
Carcinoma, Transitional Cell*
;
Drug Therapy
;
Female
;
Humans
;
Middle Aged
;
Ovary*
5.Hemosuccus Pancreaticus in the Simple Mucinous Cyst of the Pancreas.
IL Eok JO ; Dae Hwan KANG ; Cheol Woong CHOI ; Hyung Wook KIM ; Su Jin KIM ; Hyeong Seok NAM ; Dae Gon RYU
The Korean Journal of Gastroenterology 2017;70(6):301-303
Hemosuccus pancreaticus is an unusual gastrointestinal hemorrhage through the main pancreatic duct. We report a rare case of hemosuccus pancreaticus due to a simple mucinous cyst of the pancreas. A 52-year-old man who had been followed-up for a suspected branch duct intraductal papillary mucinous neoplasm (IPMN) visited the emergency room due to hematochezia. Endoscopy showed active bleeding from the ampulla. Computed tomography revealed hemorrhage in a 2.0-cm cystic mass in the pancreatic body. The patient was diagnosed with hemosuccus pancreaticus caused by bleeding into the main pancreatic duct from suspected IPMN. Elective laparoscopic distal pancreatectomy was performed. The histopathological diagnosis was a simple mucinous cyst with squamous metaplasia based upon the pathological finding involving the absence of ovarian-type stroma. In conclusion, it should be recognized that a pancreatic cyst including simple mucinous cyst may cause hemosuccus pancreaticus, and these cysts should be viewed as neoplastic and approached similarly as other mucinous pancreatic neoplasms.
Diagnosis
;
Emergency Service, Hospital
;
Endoscopy
;
Gastrointestinal Hemorrhage
;
Hemorrhage
;
Humans
;
Metaplasia
;
Middle Aged
;
Mucins*
;
Pancreas*
;
Pancreatectomy
;
Pancreatic Cyst
;
Pancreatic Ducts
;
Pancreatic Neoplasms
6.Efficacy of Otolith Repositioning Maneuver and Its Clinical Features in Benign Paroxysmal Positional Vertigo.
Bo Seung KANG ; Pill Jo CHOI ; Tae Ho IM ; Sung Man BAE ; Hyung Gon SONG ; Geun Jung SONG ; Yeon Kwon JEONG
Journal of the Korean Society of Emergency Medicine 2002;13(3):256-261
PURPOSE: Until recently, three variants of benign paroxysmal positional vertigo (BPPV) have been recognized: the first is posterior-canal canalolithiasis, the second is horizontal-canal canalolithiasis, and the last is horizontal-canal cupulolithiasis. However, the last two types of BPPV have not been introduced into the textbook of Emergency Medicine yet. The otolith repositioning maneuvers are effective treatments for BPPV, but in emergency medicine, there has been little interest in and research on them. Our goals were to determine the efficacies of these treatments and to examine the clinical features of each types of BPPV. METHODS: We performed a 6-month prospective study on forty-one patients (47 cases) who presented with a history and physical examination consistent with active BPPV to the emergency departments of a secondary hospital and a tertiary hospital (Dec. 2001-May. 2002). The patients were treated with a modified Epley canalith repositioning maneuver for posterior-canal BPPV, a modified Barbecue rotation for horizontal-canal canalolithiasis, and the maneuver of Jo et al. for horizontal-canal cupulolithiasis. RESULTS: A resolution attributable to the first intervention was obtained in 71.4% of the posterior-canal BPPV cases by using the modified Epley maneuver and in 73.1% of the horizontal-canal BPPV cases by using a modified Barbecue rotation and the maneuver of Jo et al. CONCLUSION: The otolith repositioning maneuvers result in a resolution of vertigo in the majority of patients (84.8% of the cases) immediately after treatment. They are safe and require no special equipment or investigations. They should be established as the treatments of choice for BPPV in emergency department.
Emergency Medicine
;
Emergency Service, Hospital
;
Humans
;
Otolithic Membrane*
;
Physical Examination
;
Prospective Studies
;
Tertiary Care Centers
;
Vertigo*
7.On-Pump versus Off-pump Myocardial Revascularization in Patients with Renal Insufficiency: Early and Mid-term Results.
Hwan Wook KIM ; Jae Won LEE ; Hyung Gon JE ; Soo Hwan CHOI ; Keon Hyon JO ; Hyun SONG
The Korean Journal of Thoracic and Cardiovascular Surgery 2011;44(5):323-331
BACKGROUND: Myocardial revascularization in patients with renal insufficiency is challenging to the cardiac surgeon, irrespective of utilizing extracorporeal circulation. This study aimed to compare the number of bypass grafts and the mid-term results and to evaluate independent survival predictors in patients with renal insufficiency undergoing on-pump or off-pump myocardial revascularization. MATERIALS AND METHODS: We retrospectively analyzed the data of 103 patients with renal insufficiency, who had isolated myocardial revascularization between January 1999 and January 2009. The patients were divided into two groups, the on-pump group and the off-pump group. RESULTS: The off-pump group received a significantly greater number of distal arterial grafts than the on-pump group. However, the mean number of total grafts, the degree of complete revascularization, and survival rate of the patients were not significantly different between the two groups. Multivariate analysis showed the independent predictors for reduced mid-term survival were the number of total grafts and postoperative periodic renal replacement therapy. Off-pump myocardial revascularization does not decrease the number of bypass grafts or influence on the mid-term results for patients with renal insufficiency, compared to on-pump myocardial revascularization. CONCLUSION: Myocardial revascularization with a large number of total grafts has a beneficial effect on survival in patients with renal insufficiency, irrespective of utilizing extracorporeal bypass.
Extracorporeal Circulation
;
Humans
;
Multivariate Analysis
;
Myocardial Revascularization
;
Postoperative Period
;
Renal Insufficiency
;
Renal Replacement Therapy
;
Retrospective Studies
;
Survival Rate
;
Transplants
8.Characteristics of Inpatients with Distal Phalangeal Injuries: Predictors of Long Term Hospitalization.
Hyung Min LEE ; Cheol Keun KIM ; Dong In JO ; Hyun Gon CHOI ; Dong Hyeok SHIN ; Soon Heum KIM
Journal of the Korean Society for Surgery of the Hand 2016;21(3):144-151
PURPOSE: Distal phalangeal injury is one of the most common hand injuries. Distal phalanx is very small area, but in the patients who injure in this area, hospiltalization is often necessary. Some of the patients need the long hospital stay for three or more weeks. Assessment of trends of the injuries may help in enhancing patient education and designing the management plan. We analyzed the characteristics of inpatients with distal phalangeal injuries and the predictors of long-term hospitalization. METHODS: A retrospective review of inpatients with distal phalangeal injuries was performed consecutively from June 2008 to July 2015. Patient demographics and outcomes were compared with chi-squared analysis and Student's t-test. Using multivariate regression analysis, predictors of long-term hospitalization were identified. RESULTS: Five hundred and twelve patients were investigated. The rate of long-term hospitalization was 21.9%. Multivariate logistic regression model revealed that diabetes mellitus, operation time of three or more hours, amputation injury, injury sustained at an industrial place, complication, distant flaps, and replantation were significant risk factors of long-term hospitalization. CONCLUSION: This analysis will help evaluate the possibility of long-term hospitalization and manage patients with distal phalangeal injuries.
Amputation
;
Demography
;
Diabetes Mellitus
;
Finger Injuries
;
Hand Injuries
;
Hospitalization*
;
Humans
;
Inpatients*
;
Length of Stay
;
Logistic Models
;
Patient Education as Topic
;
Replantation
;
Retrospective Studies
;
Risk Factors
9.Fibroareolar Tissue Wrap-Around Flap for Tip Plasty in Rhinoplasty in Asians.
Hyung Min LEE ; Cheol Keun KIM ; Soon Heum KIM ; Myung Chul LEE ; Jee Nam KIM ; Dong Hyeok SHIN ; Hyun Gon CHOI ; Dong In JO
Archives of Aesthetic Plastic Surgery 2016;22(3):117-121
BACKGROUND: Asians tend to have bulbous, wide, and thick-skinned noses, leading to limitations in tip augmentation. Therefore, following various tip plasty procedures, the use of a dermal graft or a fat graft may be considered for additional augmentation. For definition of the Asian nasal tip, thick fibroareolar and subcutaneous tissues are resected. However, these previously discarded tissues may be a useful material for tip augmentation. Hence, we would like to propose the fibroareolar tissue wrap-around flap as an adjuvant augmentation procedure. METHODS: Tip plasty procedures, including various suture techniques and cartilage grafts, were performed. Near the scroll area, the fibroareolar tissues above both lower lateral cartilages were dissected in the supraperichondrial plane. Caudally based fibroareolar tissue flaps were elevated around the nasal tip. The tip portion of the alar cartilage framework was covered with the flaps. The flaps were fixed to the middle or medial crura of the lower lateral cartilages. RESULTS: A total of 13 patients underwent the fibroareolar tissue wrap-around flap procedure for nasal tip plasty. No complaints were reported at follow-up by 12 patients. No cases of major infection, hematoma, or vascular compromise occurred. CONCLUSIONS: The fibroareolar tissue wrap-around flap offers several advantages for tip plasty in Asians, including additional tip projection, soft tissue volume reduction, redraping, and a naturally soft nasal tip, and likely aids in preserving the volume of other cartilage grafts. Therefore, this fibroareolar tissue wrap-around flap is worth considering as a useful adjuvant option for tip plasty in rhinoplasty in Asian patients.
Asian Continental Ancestry Group*
;
Cartilage
;
Follow-Up Studies
;
Hematoma
;
Humans
;
Nose
;
Rhinoplasty*
;
Subcutaneous Tissue
;
Surgical Flaps
;
Suture Techniques
;
Transplants
10.Influence of the Alveolar Cleft Type on Preoperative Estimation Using 3D CT Assessment for Alveolar Cleft.
Hang Suk CHOI ; Hyun Gon CHOI ; Soon Heum KIM ; Hyung Jun PARK ; Dong Hyeok SHIN ; Dong In JO ; Cheol Keun KIM ; Ki Il UHM
Archives of Plastic Surgery 2012;39(5):477-482
BACKGROUND: The bone graft for the alveolar cleft has been accepted as one of the essential treatments for cleft lip patients. Precise preoperative measurement of the architecture and size of the bone defect in alveolar cleft has been considered helpful for increasing the success rate of bone grafting because those features may vary with the cleft type. Recently, some studies have reported on the usefulness of three-dimensional (3D) computed tomography (CT) assessment of alveolar bone defect; however, no study on the possible implication of the cleft type on the difference between the presumed and actual value has been conducted yet. We aimed to evaluate the clinical predictability of such measurement using 3D CT assessment according to the cleft type. METHODS: The study consisted of 47 pediatric patients. The subjects were divided according to the cleft type. CT was performed before the graft operation and assessed using image analysis software. The statistical significance of the difference between the preoperative estimation and intraoperative measurement was analyzed. RESULTS: The difference between the preoperative and intraoperative values were -0.1+/-0.3 cm3 (P=0.084). There was no significant intergroup difference, but the groups with a cleft palate showed a significant difference of -0.2+/-0.3 cm3 (P<0.05). CONCLUSIONS: Assessment of the alveolar cleft volume using 3D CT scan data and image analysis software can help in selecting the optimal graft procedure and extracting the correct volume of cancellous bone for grafting. Considering the cleft type, it would be helpful to extract an additional volume of 0.2 cm3 in the presence of a cleft palate.
Alveoloplasty
;
Bone Transplantation
;
Cleft Lip
;
Cleft Palate
;
Cone-Beam Computed Tomography
;
Humans
;
Transplants