• 대한한방내과학회지
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• 제40권4호
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• pp.723-729
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• 2019

Objective: This study was aimed at reporting on a patient with repeated recurrence of metastatic colorectal cancer treated with traditional Korean medicine (TKM) alone after operation and chemotherapy. Method: The patient with metastatic colorectal cancer received tumor resections four times and perioperative chemotherapy for repeated recurrence from February 2013 until March 2015. TKM, which included Gunchil-dan and Haeam-dan, was administered until June 2019 to prevent additional relapses. Results: After 49 months of TKM treatment, there was no tumor recurrence. A no evidence of disease (NED) state was maintained from March 2015 to June 2019. Recurrence-free survival (RFS) was shown for 49 months and overall survival (OS) for 78 months. Serious adverse events evaluated according to the Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0 were not identified. This study suggested that TKM with herbal medicine including aRVS might prolong survival and inhibit recurrence of tumors in patients with metastatic colorectal cancer.

• Korean Journal of Radiology
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• 제23권4호
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• pp.385-388
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• 2022

• 대한골관절종양학회지
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• 제13권2호
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• pp.81-87
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• 2007

목적: 연골모세포종은 원발성 골종양의 드문 양성 종양으로 국소 재발이나 원격 전이를 일으키는 것으로 알려져 있다. 본 연구에서는 연골모세포종 30례의 치료 결과를 분석하고 예후에 미치는 인자들을 분석하고자 하였다. 대상 및 방법: 1981년부터 2005년까지 연골모세포종으로 치료 받은 30례의 환자를 후향적으로 분석하였다. 최종적으로 30명이 분석에 포함되었으며 남자가 16명, 여자가 14명이었고 술 후 평균 추시관찰 기간은 평균 7.2년이었다.(범위, 1.6~21.2년) 발생 부위로는 상완골 근위부(6례), 경골 근위부(6례), 대퇴골 원위부(6례)와 대퇴골 근위부(4례)에서 주로 발생하였다. 발생 연령은 평균 20세였으며, 20명(67%)에서는 성장판이 닫힌 이후에 발생하였다. 대부분의 예에서 적극적 소파술(과 골 이식 또는 골 시멘트 주입술) 또는 광범위 en bloc 절제술을 시행하였다. 연골모세포종의 국소 재발율과 재발에 관련이 있는 것으로 알려진 임상적, 병리학적 인자들과 국소 재발과의 관계를 분석하였다. 결과: 국소 재발은 4례(13%)에서 발생하였고 발생 시기는 각각 술 후 4개월, 6개월, 7개월과 16개월이었다. 재발한 4례에서 1회(2례) 또는 2회(2례)의 소파술을 재시행 후 국소 재발은 발생하지 않았고 최종 추시시 모두 무병생존 상태였다. 종양이 불완전하게 제거된 2례에서 모두 재발하였고, 재발한 다른 두 례는 소파술과 골 이식(1례) 또는 골 시멘트 주입술(1례)을 시행한 환자였다. 성장판의 개폐 여부(open physis), 동맥류성 골낭종의 동반 여부와 종양의 발생 부위 등은 국소 재발과 관계가 없는 것으로 관찰되었다. 결론: 연골모세포종의 국소재발을 막기 위해 종양의 완전한 제거를 위한 적극적인 소파술 또는 광범위 절제술이 필요할 것으로 생각된다. 기존에 알려져 있는 성장판의 개폐 여부, 동맥류성 골낭종의 동반 여부와 종양의 발생 부위 등은 재발과 관련 없는 것으로 보인다.

• Journal of Korean Neurosurgical Society
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• 제55권6호
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• pp.387-387
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• 2014

• Asian Pacific Journal of Cancer Prevention
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• 제15권20호
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• pp.8587-8589
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• 2014

Background: Although a great deal of progress has been made in the management of colorectal cancer in terms of neoadjuvant modalities, surgical techniques and adjuvant therapies, the recurrence of tumors remains an enigmatic complication in patients. A better understanding of colorectal cancer and of factors that lead to recurrence of disease can provide helpful information for designing more effective screening and surveillance methods. Aim: To investigate the factors that may lead to local recurrence of colorectal cancers. Materials and Methods: The current retrospective case study evaluated 617 patients admitted to the Iranian Cancer Institute (the largest referral cancer center in the country) from 1995 to 2009 with confirmed colorectal cancer. Patients with distant metastasis, or with pathology other than adenocarcinoma and no follow-up, were excluded (175 patients). The remainder (442) included 294 (66.5%) with rectal cancer and 148 (33.5%) with colon cancer. The median duration of follow-up was 26 months. Results: The total rate of recurrence was 17.4%, comprising 19.6% and 16.3% recurrence rates in colon and rectal cancer, respectively. Conclusions: Recurrence of colorectal cancer was significantly correlated to tumor grade (p<0.008).

• Journal of Chest Surgery
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• 제35권8호
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• pp.634-637
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• 2002

흉선 유암종 또는 흉선의 신경내분비 종양은 매우 드문 질환이며 재발이나 전이가 많아 예후가 좋지 못하다. 43세 남자 환자로 우측 흉부의 통증과 불편감으로 내원하였다. 단순 흉부 촬영상 우측 전종격동에 $7{\times}8$cm 크기의 종양을 발견하였으며 추가검사 후 수술적 절제를 시행하였다. 절제된 종괴는 조직학적, 면역조직화학적, 전자현미경적 소견상 흉선 낭종을 동반한 흉선의 비정형 유암종으로 진단 되었다. 수술 후 재발이나 전이 소견 없이 3개월째 외래 관찰중이다. 저자들은 흉선 낭종을 동반한 비정형 흉선유암종 1례를 치험하였기에 문헌고찰과 함께 보고하는 바이다.

• BMB Reports
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• 제51권7호
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• pp.319-326
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• 2018

Increasing evidence suggests that cancer stem cell (CSC) theory represents an important mechanism underlying the observed failure of existing therapeutic modalities to fully eradicate cancers. In addition to their more established role in maintaining minimal residual disease after treatment and forming the new bulk of the tumor, CSCs might also critically contribute to tumor recurrence and metastasis. For this reason, specific elimination of CSCs may thus represent one of the most important treatment strategies. Emerging evidence has shown that CSCs have a different metabolic phenotype to that of differentiated bulk tumor cells, and these specific metabolic activities directly participate in the process of CSC transformation or support the biological processes that enable tumor progression. Exploring the role of CSC metabolism and the mechanism of the metabolic plasticity of CSCs has become a major focus in current cancer research. The targeting of CSC metabolism may provide new effective therapies to reduce the risk of recurrence and metastasis. In this review, we summarize the most significant discoveries regarding the metabolism of CSCs and highlight recent approaches in targeting CSC metabolism.

• Radiation Oncology Journal
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• 제6권2호
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• pp.295-300
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• 1988

Chordoma is a malignant tumor arising from the primitive notochord involving the axial skeleton. It usually occurs at sacrococcygeal and besisphenoidal area but only rarely does at other vertebral areas, especially at the thoracic vertebrae. It has a slow growth rate and is locally aggressive with an extremely high rate of local recurrence. Either surgery or radiation alone often fails to cure the disease and the local failure is the main cause of treatment failure and death. Overall 5 year survival rate is less than $10\%$. Useful palliation or occasional cure can be obtained by the combination of surgery and radiotherapy. After incomplete resection, the tumor requires radiation dose of 7,000 cGy or more over 6-7 weeks for local control. Tumor regression is slow in response to irradiation and continuation of the regression for several months after completion of RT is not unusual. We report a case of chordoma of the thoracic vertebra, the site of extreme rarity, which showed good local control after partial resection and radiation therapy. He is well and alive without any evidence of recurrence after 13 months of treatment with near complete tumor regression.

• 대한두개안면성형외과학회지
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• 제17권2호
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• pp.90-92
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• 2016

Pleomorphic adenoma is the most common type of salivary gland tumor and the most common tumor of the parotid gland. Because of its propensity for invasion, pleomorphic adenoma of the parotid requires superficial parotidectomy or total parotidectomy to minimize the risk of tumor recurrence. We report a case of pleomorphic adenoma of the parotid gland with repeated recurrences. A 23-year-old male patient presented with a protruding neck mass. Six years prior to this presentation, the patient had undergone superficial parotidectomy for the removal of pleomorphic adenoma of the right parotid gland at our institution. The patient experienced recurrence at 17 months after the initial resection, which required a total parotidectomy with partial resection of the facial nerve. Pathologic examination revealed histologic findings consistent with pleomorphic adenoma across the surgical specimen from all three of the operations. The patient suffered from facial nerve paralysis, with facial expressions partially recovered over a year.

• 한국임상수의학회지
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• 제38권4호
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• pp.184-188
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• 2021

A 10-year-old spayed female Maltese with a history of vomiting and lethargy was referred to the hospital. Physical examination revealed dehydration and severe pain following abdominal palpation. A large mass was observed in the cranial abdomen through radiography and ultrasonography. Laparotomy was performed to find the origin of the mass. The mass was about 8 cm originating from the cecum and subsequently removed. Histopathologic evaluation revealed that the cecal mass was suspected to be a mesenchymal-derived tumor. Through immunohistochemistry, the mass was diagnosed as a gastrointestinal stromal tumor (GIST) based on the c-kit expression. Given its recurrence, postoperative preventive therapy was initiated with masitinib mesylate, which is a tyrosine kinase inhibitor. The animal did not show any side effects during the medication period. After 6 months of therapy, it was well controlled without any recurrence. In this case, we introduced a novel postoperative management of GIST using masitinib mesylate.