• 대한골관절종양학회지
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• 제19권1호
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• pp.14-19
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• 2013

목적: 사지에 발생한 염증성 근섬유모세포성 종양의 특성과 치료 결과에 대하여 알아보고자 하였다. 대상 및 방법: 본 연구는 1999년부터 2012년까지 본원 정형외과에서 치료받은 연부조직 종양 환자 중에서 사지에 발생한 염증성 근섬유모세포성 종양으로 병리학적으로 확진된 5명의 환자를 대상으로 하였다. 결과: 남자가 1예, 여자가 4예였으며, 평균 연령은 44세(37-55세)이고, 평균 추시 기간은 34.6개월(8-87개월)이었다. 5명의 환자 모두에서 외과적 절제술을 시행하였으며 이 중 1명의 환자에서만 광범위 절제연을 얻었고, 3명에서는 변연부 절제연을, 다른 1명에서는 병소내 절제연을 얻었다. 광범위 절제연을 얻지 못한 4명의 환자 모두에서 술 후 평균 10.3개월(8-19개월)에 재발이 발생하였으며, 재발한 4명의 환자 중 2명에서 섬유육종으로의 악성 변화가 관찰되었다. 악성 변화를 보인 2명의 환자 중 1명은 폐, 간 및 림프절로의 다발성 원격 전이가 발생하여 추시관찰 37개월에 사망하였다. 5예의 병변 중 3예에서 종양의 경계가 사지의 주요 동맥에 인접한 소견이 관찰되었으며 1예에서는 종양이 좌골 신경을 침범한 소견이 관찰되었다. 결론: 사지에 발생한 염증성 근섬유모세포성 종양은 주요 신경혈관계와 인접하여 발생하는 경향을 나타내었다. 이 종양은 재발을 잘하며 악성 변화의 가능성이 있으므로 광범위 절제술이 적절한 수술적 치료법이 될 것으로 생각된다.

• Journal of Korean Neurosurgical Society
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• 제37권3호
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• pp.193-196
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• 2005

Objective: Strategies for managing supratentorial primitive neuroectodermal tumors(PNETs) in children include surgical resection, craniospinal irradiation and chemotherapy. This study is performed in order to compare the efficacy of various methods of treatment and to describe its optimal management. Methods: We have reviewed all medical records and pathology slides of six children(four males and two females) with supratentorial PNET from November, 1987 to May, 2003. The extent of resection was confirmed by computed tomography and magnetic resonance studies. Results: The patients were aged 1 to 13 years and treated postoperatively with/without adjuvant therapy. Tumor location included was four cortical, one gangliobasal, and one pineal region. The presenting symptoms and signs consisted of increased intracranial pressure and focal neurological deficits such as seizure and hemiparesis. The treatment consisted of surgical resection alone in one patient, postoperative radiotherapy in one patient, postoperative chemotherapy in one, and postoperative radiotherapy with chemotherapy in three. Five patients lived more than 12 months after diagnosis and one patient among them has been living more than 5 years after diagnosis. Conclusion: We can improve the survival and prognosis of supratentorial PNET patients by radical gross total resection of tumor followed by craniospinal irradiation and aggressive chemotherapy. First of all, gross total resection of tumor is the most important among many factors.

• 대한골관절종양학회지
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• 제4권1호
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• pp.22-29
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• 1998

A limb-sparing operation has a definitive role in the treatment of osteosarcoma in the lower extremity of skeletally-immature patients. After a limb-sparing operation, leg length discrepancy remains as a major disability that should be corrected. This study was designed to suggest methods of tumor resection and proper timing of leg length equalization in skeletally immature osteosarcoma patients. From September 1990 to January 1998, we reviewed eight osteosarcoma patients in an immature skeletal age. There were 4 males and 4 females, and their mean duration of follow-up was 50.37 months (range : 25 to 88 months). Mean skeletal age was 8 years (range : 8 months to 11 years). The patients were classified according to the methods of tumor resection ; intercalary resection in 1 case, transepiphyseal resection in 1, intra-articular resection in 5, and extra-articular resection in 1. The results were as follows ; 1. The leg lengthening was begun when a patient's leg length discrepancy reached 4-5cm. 2. The age of final lengthening with permanent reconstruction was 14 years in males and 12 years in females (about 2 years before skeletal maturity). 3. When reconstruction was performed with a temporary spacer, the site of lengthening Was in the soft tissue, not in bone, and then a permanant reconstruction was done. 4. Reconstruction with a biologic spacer to preserve the joint function was a reasonable method for equalization of leg length. In conclusion, the appropriate choice of reconstructive method and the age at which to correct the leg length discrepancy in a skeletally-immature osteosarcoma patients are important factors for maintaining leg length at full maturity.

• Archives of Plastic Surgery
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• 제51권5호
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• pp.487-494
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• 2024

Background Basal cell carcinoma (BCC) is the most common type of nonmelanoma skin cancer. Typically, resection requires a safety margin of ≥4 mm. When removing tumor cells, achieving complete excision with minimal safety margins and reconstructing the defect to preserve the original appearance are important. In this study, we used a 3-mm resection margin to confirm recurrence and re-resection rates. Methods Electronic medical records and photographic data were obtained for patients with primary BCC lesions less than 2 cm in diameter who underwent wide excision with a 3-mm surgical margin from January 2015 to November 2021. We analyzed factors determining recurrence and re-resection rates, such as tumor size, location, age, sex, underlying diseases (including immunosuppression state), ethnicity, subtypes, tumor borders, etc. Results This study included 205 patients. The mean age and follow-up period were 73.0 ± 11.5 years and 10.2 ± 8.0 months, respectively. The recurrence and re-resection rates were 1.95% and 25.85%, respectively. A statistically significant correlation was found between recurrence rate and tumor border (p = 0.013) and the re-resection rate was correlated statistically with location (p = 0.022) and immunosuppressed patients (p = 0.006). Conclusion We found that a 3-mm excision margin provided sufficient safety in small facial BCC, resulting in ease of surgery and better aesthetic outcomes. However, surgical margins must be determined case by case by integrating various patient factors. In particular, a surgical margin of ≥4 mm is required for BCC in high-risk areas, immunosuppressed patients, or poorly defined border.

• Journal of Gastric Cancer
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• 제11권3호
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• pp.162-166
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• 2011

Purpose: Endoscopic resection is widely accepted as standard treatment for early gastric cancer (EGC) without lymph node metastasis. The procedure is minimally invasive, safe, and convenient. However, surgery is sometimes needed after endoscopic mucosal resection (EMR)/endoscopic submucosal dissection (ESD) due to perforation, bleeding, or incomplete resection. We evaluated the role of surgery after incomplete resection. Materials and Methods: We retrospectively studied 29 patients with gastric cancer who underwent a gastrectomy after incomplete EMR/ESD from 2006 to 2010 at Korea University Hospital. Results: There were 13 incomplete resection cases, seven bleeding cases, three metachronous lesion cases, three recurrence cases, two perforation cases, and one lymphatic invasion case. Among the incomplete resection cases, a positive vertical margin was found in 10, a positive lateral margin in two, and a positive vertical and lateral margin in one case. Most cases (9/13) were diagnosed as mucosal tumors by endoscopic ultrasonography, but only three cases were confirmed as mucosal tumors on final pathology. The positive residual tumor rate was two of 13. The lymph node metastasis rate was three of 13. All lymph node metastasis cases were submucosal tumors with positive lymphatic invasion and no residual tumor in the gastrectomy specimen. No cases of recurrence were observed after curative resection. Conclusions: A gastrectomy is required for patients with incomplete resection following EMR/ESD due to the risk of residual tumor and lymph node metastasis.

• Korean Journal of Radiology
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• 제21권8호
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• pp.946-954
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• 2020

Objective: To investigate preoperative magnetic resonance imaging (MRI) findings associated with resection margin status in patients with invasive lobular carcinoma (ILC) who underwent breast-conserving surgery. Materials and Methods: One hundred and one patients with ILC who underwent preoperative MRI were included. MRI (tumor size, multifocality, type of enhancing lesion, distribution of non-mass enhancement [NME], and degree of background parenchymal enhancement) and clinicopathological features (age, pathologic tumor size, presence of ductal carcinoma in situ [DCIS] or lobular carcinoma in situ, presence of lymph node metastases, and estrogen receptor/progesterone receptor/human epidermal growth factor receptor type 2 status) were analyzed. A positive resection margin was defined as the presence of invasive cancer or DCIS at the inked surface. Logistic regression analysis was performed to determine pre- and postoperative variables associated with positive resection margins. Results: Among the 101 patients, 21 (20.8%) showed positive resection margins. In the univariable analysis, NME, multifocality, axillary lymph node metastasis, and pathologic tumor size were associated with positive resection margins. With respect to preoperative MRI findings, multifocality (odds ratio [OR] = 3.977, p = 0.009) and NME (OR = 2.741, p = 0.063) were associated with positive resection margins in the multivariable analysis, although NME showed borderline significance. Conclusion: In patients with ILC, multifocality and the presence of NME on preoperative breast MRI were associated with positive resection margins.

• Journal of Gastric Cancer
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• 제9권4호
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• pp.193-199
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• 2009

목적: 고려대학교 구로병원에서 14년간 위암으로 수술받은 예를 대상으로 임상병리학적 특성, 치료 결과 및 예후 인자를 분석하여 보고자 하였다. 대상 및 방법: 1993년부터 2006년까지 본 교실에서 수술받은 2,327명의 위암 환자를 대상으로 후향적 연구를 하였다 결과: 절제율은 92.8%였고 근치적 절제율은 90.8%였다. 5년 생존율은 절제 예 70.0%, 근치적 절제 예 79.2%, 비근치적 절제 예 3.7% 그리고 비절제 1.5%였으며, 절제 예에서 병기별 5년 생존율은 IA기 98.9%, IB기 94.4%, II기 77.3%, IIIA기 69.3%, IIIB기 38.9% 그리고 IV기 13.6%였다. 예후 인자의 단변량 분석결과 나이, 종양의 크기 및 위치, 육안적 형태, 위벽 침윤, 림프절 전이, 원격 전이가 통계적으로 유의하였고 다변량 분석 결과 독립적 예후 인자는 림프절 전이, 위벽의 침윤도, 정맥 침윤, 연령의 순으로 나타났다. 결론: 위암에서의 예후는 병기에 의해서 가장 많이 영향을 받으므로 예후 향상을 위해서는 조기발견이 가장 중요하고, 적극적이며 체계적인 외과적 치료가 위암의 생존율향상에 기여할 것으로 생각한다.

• Journal of Gastric Cancer
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• 제11권1호
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• pp.31-37
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• 2011

Purpose: We performed this study to evaluate the clinical presentation as well as the proper surgical intervention for ovarian metastasis from gastric cancers and these tumors were identified during postoperative follow-up. This will help establish the optimal strategy for improving the survival of patients with this entity. Materials and Methods: 22 patients (3.2%) with ovarian metastasis were noted when performing a retrospective chart review of (693) females patients who had undergone a resection for gastric cancer between 1981 and 2008. The covariates used for the survival analysis were the patient age at the time of ovarian relapse, the size of the tumor, the initial TNM stage of the gastric cancer, the interval to metastasis and the presence of gross residual disease after treatment for Krukenberg tumor. The cumulative survival curves for the patient groups were calculated with the Kaplan-Meier method and they were compared by means of the Log-Rank test. Results: The average age of the patients was 48.6 years (range: 24 to 78 years) and the average survival time of the 22 patients was 18.8 months (the estimated 3-year survival rate was 15.8%) with a range of 2 to 59 months after the diagnosis of Krukenberg tumor. The survival rate for patients without gross residual disease was longer than that of the patients with gross residual disease (P=0.0003). In contrast, patient age, the size of ovarian tumor, the initial stage of gastric adenocarcinoma, the interval to metastasis and adjuvant chemotherapy were not prognostic indicators for survival after the development of ovarian metastasis. Conclusions: Early diagnosis and complete resection are the only possible hope to improve survival. As the 3-year survival rate after resection of Krukenberg tumor is 15.8%, it seems worthwhile to consider performing tumorectomy as the second cytoreduction.

• Journal of Korean Neurosurgical Society
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• 제50권6호
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• pp.523-527
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• 2011

A 67-year-old woman presented for evaluation of severe coccygeal pain. The computed tomography scans and magnetic resonance imaging showed an asymmetric midline sacral tumor invading the right lower portion of S2. To preserve both S2 nerve roots and to obtain negative surgical margins, a modified mid-sacrectomy with an aid of a computed navigation system was performed. The sacral tumor was excised en bloc with negative tumor margins. Both S2 nerve roots were preserved and additional reconstruction was not necessary because of minimal resection of the sacroiliac joint. We report a case of a sacral chordoma which was excised en bloc with adequate surgical margins by a computer-assisted modified mid-sacrectomy. The computed navigation system may be a useful tool for tumor targeting and safe osteotomies in sacral tumor surgery via the posterior only approach.

• 대한골관절종양학회지
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• 제13권2호
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• pp.113-118
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• 2007

골반 골에 생기는 종양은 복잡한 해부학적 구조와 체부 깊숙이 위치하는 특성으로 인하여, 상당히 커진 후에야 발견되는 경우가 많아서 진단이 늦어지고, 수술이 어려워지는 경우가 많이 있다. 특히 비구 주위에 발생한 종양은 종양의 제거 후에 고관절의 기능을 유지 할 수 있는 재건술의 방법이 극히 제한되어 있고, 수술도 어려우며, 재건술의 예후 또한 예측하기 어렵다. 저자는 신장암이 골반 골 비구 주위로 단독 전이 된 환자의 광범위 종양절제 후 저온 가열 처리한 자가골 과 인공고관절로 재건 한 증례를 보고한다.