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갑상선 초음파 의료영상을 이용한 정량분석 소프트웨어 개발과 양성 결절 환자에서의 임상 적용
유영재 ( Young Jae Ryu ),허영회 ( Young Hoe Hur ),권성영 ( Seong Young Kwon ),채일석 ( Il-seok Chae ),김민중 ( Min Jung Kim ),김태훈 ( Tae-hoon Kim ) 한국정보처리학회 2021 한국정보처리학회 학술대회논문집 Vol.28 No.2
갑상선 결절(thyroid nodule)은 검진 인구에서 빈번하게 진단되는 질환이지만 현재까지 진단방법은 경험적이며 정성적 판단에 의존하고 있는 실정이다. 본 연구는 갑상선 결절을 평가하기 위하여 시행한 초음파 의료영상을 이용하여 정량 분석할 수 있는 소프트웨어를 개발하였으며 갑상선 양성 결절 환자에서의 임상활용 가능성을 평가하고자 한다. 임상 연구는 총 13명의 갑상선 양성 결절 환자를 대상으로 하였다. 환자별 갑상선 초음파영상을 이용하여 정상부위와 병변부위에서 정량 지표인 변동 계수를 각각 측정하였다. 환자별 정상부위와 병변부위의 변동계수 차이는 대응표본 T 검정을 사용하여 비교하였으며 유의한 차이를 확인할 수 있었다. 본 연구를 통하여 개발한 정량분석 소프트웨어를 실제 갑상선 양성 결절 환자에서 갑상선 결절을 분석·평가하는데 활용할 수 있을 것으로 판단된다.
간외 담관암의 수술적 절제 후 재발 및 생존율에 영향을 미치는 조직병리학적 예후 인자
박지영(Ji Young Park),김호현(Ho Hyun Kim),박은규(Eun Kyu Park),성진식(Jin Shick Seoung),허영회(Young Hoe Hur),고양석(Yang Seok Koh),김정철(Jung Chul Kim),조철균(Chol Kyoon Cho),김현종(Hyun Jong Kim) 한국간담췌외과학회 2010 한국간담췌외과학회지 Vol.14 No.3
Purpose: Surgery remains the only curative option for patients with extrahepatic bile duct cancer (EHBD Ca). But, long-term survival is typically not good because of the advanced stage of disease at the time of diagnosis and frequent disease recurrence after surgical resection. The purpose of this study was to evaluate factors that influence survival and recurrence after surgical resection of EHBD Ca. Methods: A retrospective analysis of 113 patients who had received surgical resection for EHBD Ca between 2004 and 2009 was done. We investigated histopathological features, and survival and recurrence rates, and evaluated prognostic factors affecting survival and disease recurrence after surgical resection. Results: Overall survival rates for 1, 3 and 5 years were 73.2%, 42.8%, and 36.0% respectively. In univariate analysis, prognostic factors influencing survival were histologic differentiation, T stage, lymph node (LN) metastasis, TNM stage, perineural invasion (PNI), lymphovascular invasion (LVI) and resection margin state. Among them, LN metastasis, PNI and resection margin state were found to be independent prognostic factors for overall survival in multivariate analysis. Recurrence occurred in 44 patients (48.9%) and disease-free survival rates were 50.6% at 1 year and 38.3% at 3 year. Univariate analysis revealed that histologic differentiation, T stage, LN metastasis, TNM stage, PNI and LVI were significantly associated with recurrence. In multivariate analysis, only LN metastasis was found to be a significant independent predictor of recurrence. Conclusion: LN metastasis, PNI and positive resection margin were significant prognostic factors affecting survival. LN metastasis was found to be a significant independent predictor of recurrence in surgical resection of EHBD Ca.
정삭에 발생한 다발성 원격전이를 동반한 점액성 지방육종
김호현(Ho Hyun Kim),허영회(Young Hoe Hur),박찬용(Chan Yong Park),김정철(Jung Chul Kim),김신곤(Shin Kon Kim) 대한외과학회 2009 Annals of Surgical Treatment and Research(ASRT) Vol.77 No.5
Myxoid liposarcoma of the spermatic cord (MLSC) is a rare variant of spermatic sarcoma. Typically, it presents during the sixth decade of life as a painless scrotal or inguinal mass. Although local recurrences are not uncommon, prognosis following complete tumor removal is good because metastases are rare. Although myxoid liposarcoma is common elsewhere in the body, less than 20 cases have been described in the spermatic cord. Distant metastasis with MLSC (e.g., bone, liver, lung) is extremely rare, and no cases have been reported in the English literature. We report one case of MLSC with multiple bone, liver and peritoneal metastasis, incidentally found during inguinal hernia repair.
김호현(Ho Hyun Kim),허영회(Young Hoe Hur),박찬용(Chan Yong Park),김정철(Jung Chul Kim),김신곤(Shin Kon Kim) 대한외과학회 2009 Annals of Surgical Treatment and Research(ASRT) Vol.77 No.4
Primary angiosarcoma of the spleen is an extremely rare malignancy, the pathogenesis of which is not completely understood, with high metastatic potential and an exceedingly poor prognosis, regardless of treatment regimen. The major complication is splenic rupture, which often leads to fatal hemoperitoneum. Overall, since 1879 when Langerhans described the first case of angiosarcoma of the spleen, there have been approximately 200 cases reported in the literature. Moreover, to the best of our knowledge, spontaneous rupture of primary splenic angiosarcoma and spontaneous rupture of remnant or recurred angiosarcoma is extremely rare, and no cases were reported in English literature. We report a case of spontaneous splenic rupture due to angiosarcoma in a 68-year-old man, and also review the existing literature.
박찬용(Chan Yong Park),허영회(Young Hoe Hur),김정철(Jung Chul Kim),김신곤(Shin Kon Kim) 대한외과학회 2009 Annals of Surgical Treatment and Research(ASRT) Vol.77 No.2
Lumbar hernias are rare posterolateral abdominal wall defects. There are two types of lumbar hernia. One is a superior lumbar hernia through the deep superior orifice (Grynfeltt triangle), and the other is a lower lumbar hernia through the superficial lower orifice (Petit triangle). A lumbar hernia is often misdiagnosed as a lipoma, so a cautious clinical examination is very important. Reports of recurrent lumbar hernia are extremely rare in the literature. We experienced a case of recurrence in an acquired primary lumbar hernia in a 71-year-old male who had undergone mesh-plug herniorrhaphy. The hernia orifice was 1 ㎝ in diameter and exhibited a fibrous smooth margin. Hernia repair using 3-D mesh was performed. The patient had uncomplicated postoperative course and was discharged one day after the operation.
조승현(Seung Hyun Cho),허영회(Young Hoe Hur),고양석(Yang Seok Koh),김정철(Jung Chul Kim),조철균(Chul Kyoon Cho),김현종(Hyun Jong Kim) 대한외과학회 2008 Annals of Surgical Treatment and Research(ASRT) Vol.74 No.6
Purpose: Intraductal papillary mucinous tumor (IPMT) of the pancreas pathologically shows papillary proliferation and its tumor cells display a spectrum of changes ranging from adenoma to infiltrating carcinoma. Because of this variability, there have been many difficulties for making an accurate diagnosis and administering proper treatment. The aim of this study was to determine the treatment strategy and differential diagnosis of benign and malignant IPMT. Methods: Between January 2000 and June 2007, 24 patients with IPMT of the pancreas underwent surgery. The relationships among the clinopathologic features and tumor locations and subtypes were retrospectively investigated. In addition, the type of surgical procedures and findings, the microscopic finding, the immunohistochemical staining and the clinopathological features were analyzed. Results: There were 17 men and 7 women with a mean age of 65 (range: 45∼81). Pathologically, 11 cases were benign, 9 were borderline and 4 were malignant. The tumor was located in the head of the pancreas in 17 patients. 16 cases received Whipple’s procedure and pylorus preserving pancreaticoduodenectomy, and the others were received different kinds of operations. Regarding the subtypes of IPMT, 2 cases were the main duct type, 19 were the branched type and 3 were the combined type. There were no statistically significant differences in the clinical manifestations, radiologic findings and immnohistochemical staining between the patients with benign and malignant IPMT. Except two patients who were not followed up, all the patients had no recurrence and they survived. Conclusion: It is very difficult to exactly differentiate malignant IPMT from benign IPMT with using the current preoperative evaluations and immunohistochemical staining of the resected specimens. The patients who were operated on and followed in our hospital had no recurrence and they all survived. Therefore, if IPMT is suspected, we think the patients should be operated on and we should continue studying other specific antibodies for immunohistochemical staining.
김호현(Ho Hyun Kim),허영회(Young Hoe Hur),박찬용(Chan Yong Park),고양석(Yang Seok Koh),김정철(Jung Chul Kim),조철균(Chol Kyoon Cho),김현종(Hyun Jong Kim) 대한외과학회 2009 Annals of Surgical Treatment and Research(ASRT) Vol.77 No.6
Lymphangioma of the spleen is a rare benign neoplasm with clinical manifestations ranging from insignificant incidental findings to large, symptomatic cystic masses requiring surgical intervention. We report a case of splenic cavernous lymphangioma mimicking splenic hemangioma. A 59-year-old woman presented with left upper quadrant pain and epigastric discomfort. Computed tomography showed a 9.5×8 ㎝ high attenuated mass with relatively homogenous enhancement in the spleen. The initial impression was a splenic hemangioma. The patient underwent splenectomy. Gross pathologic examination revealed a 9.5×6.8×9 ㎝-sized fairly well circumscribed soft mass. Histologically, the tumor was composed of dilated lymphatic vessels, which contained homogenous eosinophilic material. The Final diagnosis was cavernous lymphangioma of the spleen. Herein, we report a case of splenic cavernous lymphangioma mimicking splenic hemangioma and also review the existing literature.
박찬용(Chan Yong Park),허영회(Young Hoe Hur),김정철(Jung Chul Kim),김신곤(Shin Kon Kim) 대한외과학회 2009 Annals of Surgical Treatment and Research(ASRT) Vol.77 No.1
Purpose: Incarcerated inguinal hernia may have very unusual hernial sac contents. In this study we aim to present clinical characteristics about incarcerated inguinal hernia of the greater omentum. Methods: We retrospectively analyzed hospital records of 643 adult patients who underwent inguinal hernia repair from November 2001 to January 2009. The age, sex, location, type, symptom duration, body mass index (BMI), comorbidity, type of anesthesia, operative time, postoperative hospital stay and complications were reviewed. Results: Of the 643 cases, 18 cases were omental incarcerated inguinal hernia group (O group). Seventeen in 18 cases of O group were male patient (NS). In O group, 16 cases were indirect type and 2 cases were femoral type (P=0.021). Mean age was younger in O group than in non-omental incarcerated inguinal hernia group (N group) (P=0.017). Duration of symptom was longer (P=0.013), and body mass index (BMI) was larger in O group (P=0.042). Operative time was longer in O group than in N group (P=0.006). Conclusion: The patients with omental incarcerated inguinal hernia mostly had long durations of protruding mass without pain. In these patients, operation was relatively difficult due to severe adhesion between the hernial sac and greater omentum. In addition, operative time took approximately 10 minutes longer. Therefore, general and spinal anesthesia is more feasible than local anesthesia.