• 대한기관식도과학회:학술대회논문집
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• 대한기관식도과학회 1993년도 제27차 학술대회 초록집
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• pp.106-106
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• 1993

후두암은 두경부 영역의 가장 빈번한 악성종양으로 예후가 비교적 양호한 질환이다. 그러나 경부임파절로의 전이빈도는 원발병소의 위치에 따라 매우 다른 것으로 되어 있고, 특히 성문상부암의 경우에는 경부임파절 전이가 매우 많은 것으로 되어 있다. 이에 저자는 1986년 부터 1992년 까지 본 병원에서 후두암으로 진단되어 일차 수술을 시행하였던 111례중 성문상부암 49례을 대상으로 성문상부암의 경부임파절 전이 빈도 및 병기에 따른 경부 곽청술의 필요성에 대하여 후향적 분석을 시행하였다. 결과적으로 성문상부암 중에서 외측에 속하는 피열후두개추벽에서 발생한 환자에서 정중위(후두개)에서 발생한 환자보다 경부임파절전이 빈도가 높았다. 그리고 경부 임파절 전이률은 T 병기에 관계없이 평균 51.0%이었다. 따라서 성문상부암, 특히 T2이상인 경우에는 경부곽청술이 필요하다고 사료된다.

• Tuberculosis and Respiratory Diseases
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• 제70권1호
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• pp.74-78
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• 2011

Herein, we report a case of recurrent pleural metastasis after complete resection of invasive thymoma that was successfully treated with surgical resection. Thymoma and thymic carcinoma are uncommon neoplasms derived from the epithelial cells of the thymus. Approximately 30% to 50% of thymomas are asymptomatic at the time of diagnosis. However, these cancers may present with constitutional or local pressure symptoms and sometimes with paraneoplastic syndromes, especially myasthenia gravis. Surgical resection is the mainstay of thymoma treatment and has been shown to remarkably improve long-term survival. Despite complete resection, local recurrences are frequent, and surgery is the cornerstone of therapy even in cases of recurrent thymoma. We experienced a 67-year-old male patient with pleural metastasis that developed 6 years after complete surgical resection of invasive thymoma. The pleural mass was excised by video-assisted thoracoscopic surgery. Histopathological examination revealed an invasive World Health Organization (WHO) type B2 thymoma.

• Archives of Plastic Surgery
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• 제38권5호
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• pp.711-714
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• 2011

Purpose: Angiosarcoma is a rare malignant neoplasm of endothelial type cells that line vessel walls. It tends to occur in aged male and the prognosis of angiosarcoma is very poor because of frequent local recurrence and early metastasis. The treatment regimen is yet to be established from its rare occurrence but the wide excision in early stage is known to be the most effective. The authors report two cases of near totally excised angiosarcoma with more than a safety margin of 5 cm. Methods: The two subjects were aged male patients, one of the two was diagnosed with angiosarcoma from our institution confirmed by the biopsy. The other one went through the wide excision with a safety margin of 2 cm and split-thickness skin graft but local recurrence was observed. The two patients underwent near total excision with more than a safety margin of 5 cm, leaving only the periosteum. After confirming that the angiosarcoma had not infiltrated the excision margin, reconstruction with split-thickness skin graft was performed. Results: Based on 6 months and 24 months post-surgery assessment, no local recurrence or remote metastasis in the lungs, liver, bones, and lymph nodes at the neck, where remote metastasis is common, was reported by the two subjects who underwent near total excision with a safety margin of 5 cm. Conclusion: Angiosarcoma has very poor prognosis from its frequent recurrence and metastasis. To enhance the survival rate of angiosarcoma patients, early diagnosis, timely surgical treatment, and radiotherapy after surgery are critical. In addition, authors suggest that it is necessary to further study the efficacy of wide excision using a wider safety margin as much as possible, and to apply this to more cases.

• Journal of Gastric Cancer
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• 제18권4호
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• pp.409-416
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• 2018

A 55-year-old man visited our hospital for a detailed examination of a gastric submucosal tumor that was first detected 10 years prior. The tumor continued to grow and had developed a depressed area in its center. A histopathological examination of biopsy specimens revealed gastric adenocarcinoma of the fundic gland type (GA-FG). It was diagnosed as T2 based on the invasion depth as determined by white-light endoscopy and endoscopic ultrasonography. A total gastrectomy with lymphadenectomy was performed and a GA-FG in the mucosa and submucosa was confirmed histopathologically. However, there was a gradual transition to an infiltrative tubular adenocarcinoma with poorly differentiated components in the muscular and subserosal layers. Metastasis was identified in a dissected lymph node (LN). This is the first report of a GA-FG progressing to an aggressive cancer with LN metastasis. These findings modify our understanding of the pathophysiology of GA-FG.

• Journal of Gastric Cancer
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• 제22권4호
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• pp.339-347
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• 2022

Purpose: Lymphovascular invasion is a criterion for non-curative resection in patients who have undergone endoscopic submucosal dissection (ESD) for early gastric cancer (EGC). We aimed to determine the rate of extragastric metastasis (EGM) and identify the predictors of EGM in patients with negative resection margins (R0 resection) and lymphovascular invasion in post-ESD pathology. Materials and Methods: A total of 2,983 patients underwent ESD for EGC. Among them, 110 had a pathology of R0 resection and positive lymphovascular invasion. Patients underwent additional gastrectomy (n=63) or further follow-up without gastrectomy (n=47). Results: The 110 patients were assigned to one of the 3 groups according to ESD indications based on post-ESD pathology. The first group satisfied the absolute indication for ESD (n=18), the second group satisfied the expanded indications for ESD (n=34), and the last group satisfied the beyond indication (n=58). The number of occurrences of EGM in each group was 1 (5.6%), 3 (8.8%), and 3 (5.2%), respectively. The logistic regression analysis adjusted for age, sex, tumor size, and indication for ESD, showed that larger tumor size was associated with EGM (odds ratio, 1.76; 95% confidence interval, 1.00-3.10; P=0.048). In contrast, ESD indication criteria did not affect EGM (P=0.349). Conclusions: Tumor size was the only predictive indicator for EGM in patients who underwent R0 resection and lymphovascular invasion on post-ESD pathology. Even patients with pathology corresponding to the absolute indication criteria of ESD had lymphovascular invasion, which means that they require additional gastrectomy due to the risk of EGM.

• 대한영상의학회지
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• 제85권3호
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• pp.631-636
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• 2024

흉막 전이는 흉막에 생기는 악성 질환 중 가장 흔한 원인으로 주로 흉수, 흉막의 결절, 흉막 비후 등의 소견을 보인다. 한편, 흉막폐실질 탄력섬유증(pleuroparenchymal fibroelastosis; 이하 PPFE)은 폐 첨부의 흉막과 주변 폐 실질의 섬유화를 특징으로 하는 질환이다. 저자들은 폐의 양 첨부에 기저 PPFE와 함께 좌하엽에 위치하는 원발성 폐암의 좌측 첨부 흉막 전이가 동반되었던 60세 남자 환자의 증례를 보고한다. 흉막 전이로 인한 좌측 첨부의 비대칭적인 흉막 비후 소견이 진단 초기에 기저 PPFE 병변으로 오인되었다. 또한 PPFE의 MRI 소견을 포함한 영상 소견 및 조직병리학적 소견을 함께 기술하였다.

• 대한두경부종양학회지
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• 제13권2호
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• pp.206-212
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• 1997

H$\"{u}$rthle cell neoplasm of the thyroid gland is an uncommon, but potentially malignant lesion. However, in many instances, the malignant potential of the H$\"{u}$rthle cell neoplasm is very difficult to judge histologically. For this reason, the biologic behavior of this tumor and its optimal treatment have come under considerable debate in recent years. In order to review the clinicopathologic features of the H$\"{u}$rthle cell neoplasm and to determine its optimal treatment modalities, we studied 26 patients with path logical proof of H$\"{u}$rthle cell tumor from January 1987 to September 1997. We also performed an immunohistochemical study using the monoclonal antibodies against antigen CD34 for the angiogenic activity of this tumor and evaluated the differences of microvessel density(MVD) between benign and malignant tumors. The age of the patients ranged from 1 to 71 years with a mean of 44.2 years. There were 6 males and 20 females(M : F= 1 : 3.3). The accuracies of fine needle aspiration biopsy and frozen section were very low; 6.3% and 34.8%, respectively. There were 20 benign tumors and 6 malignant tumors(23.1%). All the malignant tumors were microinvasive(intermediate) type which had minimal capsular invasion and most of them(5 cases) were diagnosed postoperatively. Any specific clinicopathologic differences were not seen between benign and intermediate groups. Most of the cases had conservative surgeries(15 ipsilateral lobectomy-isthmusectomy, 7 subtotal thyroidectomy) while total thyroidectomy was performed in 4 cases. Of the cases with malignant tumor, 2 had ipsilateral lobectomy-isthmusectomy, 3 had subtotal thyroidectomy and the remaining 1 had total thyroidectomy. Mean size of the tumors was 3.0 cm(0.1- 8.5 cm) in the greatest diameter and multiple tumors were seen in 6 cases(23.1 %). During the follow-up period, only one recurrence(3.8%) of benign tumor occurred but distant metastasis or cause-specific death was seen in the benign or intermediate groups. Mean MVDs of the benign(n=13) and intermediate(n=6) groups were $121.7{\pm}35.3$ and $114.3{\pm}31.7$, respectively and there was no statistical significance between them. In conclusion, because of the low accuracies of fine needle aspiration biopsy and frozen section for the H$\"{u}$rthle cell neoplasm, the extent of surgery could be individualized based on permanent pathologic examination; Conservative surgery would be adequate for patients with benign or intermediate H$\"{u}$rthle cell neoplasm and total or near-total thyroidectomy for those with definite malignancy.

• 대한두경부종양학회지
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• 제31권2호
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• pp.54-57
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• 2015

Angiosarcoma is a rare and highly malignant neoplasm which develops from the endothelium of blood vessels. A few cases of primary angiosarcoma of the parotid gland have been reported. However, there is no report of primary angiosarcoma of the accessory parotid gland. In this case, we report a primary angiosarcoma of the accessory parotid gland in a 45-year-old man with growing cheek mass. Ultrasonography revealed a $2.0{\times}2.6cm$ sized homogeneous hypoechoic mass and computed tomography showed a contrast enhanced homogeneous mass. Fine needle aspiration biopsy suggested a benign tumor. The mass was completely excised with a minimal vertical incision. The histopathology showed anastomosing vascular channels lined by atypical endothelial cells and many branching vessels with staghorn appearance with positive immunohistochemical staining for CD34, a highly specific endothelial marker. The patient underwent postoperative radiotherapy and was followed for 8 years without recurrence and metastasis.

• Journal of Chest Surgery
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• 제31권3호
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• pp.319-323
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• 1998

흉선의 유암종은 매우 드문 종격동 종양으로, 1972년에 Rosai와 Higa에 의해 기술되었다. 흉선의 유암종은 Kultschizky 세포에서 생기는 종양으로 생각되어지며, 흉선종과 다른 종양으로 간주되어 왔다. 흉선의 유암종의 병리학적인 진단으로 병리학적, 면역조직화학적, 전자현미경적 소견을 이용한다. 유암종의 50% 정도에서는 내분비 질환을 가진다. 재발과 흉곽외 전이가 특징적이다. 발견당시나 재발의 경우에 외과적인 절제가 가장 효과적이라고 생각된다. 그러나 방사선 치료나 항암치료의 역할은 분명하지 않다. 저자들은 수술 및 병리학적으로 증명된 57세 남자의 흉선 유암종 1예를 경험하였기에 간단한 문헌 고찰과 함게 보고하는 바이다.

• 대한두경부종양학회지
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• 제8권2호
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• pp.106-111
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• 1992

Ten patients with $H\"{u}rthle$ cell tumor of the thyroid gland from Dec. 1987 to Sep. 1992 were reviewed to delinate an acceptable policy of treatment. Patients varied from age 23 years to 66 and consisted of nine females and one male, most of whom had an asymptomatic solitary cold nodule. Four patients had benign neoplasm and six patients had malignant neoplasm proven by capsular or vascular invasion or nodal metastasis. Associated thyroid lesions occurred in five patients, three adenomatous goiter, one Graves' disease and one follicular cell carcinoma. Surgery consisting of lobectomy and isthmectomy in four patients, bilateral subtotal thyroidectomy in one patients, total thyroidectomy in five patients. Lymph node dissection was not performed. Only one patient was experienced transient hypocalcemia. The period of observation varied from 15 to 58 months(mean, 30.5 months). Although our case was small and short follow up period, there were no recurrences or deaths. We suggested early aggressive surgical approach was appropriate because of lower recurrence rate and fewer operation, high bilateralism, lower surgical complication.