• Asian Pacific Journal of Cancer Prevention
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• 제15권12호
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• pp.4909-4913
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• 2014

Malignant ovarian germ cell tumors (MOGCT) are rare neoplasms that most frequently occur in women at a young reproductive age. There have been limited data regarding this disease from Southeast Asian countries. We therefore conducted a retrospective study to analyze the clinical characteristics and the treatment outcomes of MOGCT treated at our institute between January, 2003 and December, 2012. Seventy-six patients were recruited from this period with the mean age of 21.6 years and 11.8% were pre-puberty. The two most common symptoms were pelvic mass and pelvic pain. Two-thirds of the studied patients presented at an early stage. The most common histology was immature teratoma (34.2%) followed by endodermal sinus tumor (28.9%), dysgerminoma (25%), mixed type (10.5%) and choriocarcinoma (1.3%). Over 80% of these patients received fertility sparing surgery and about 70% received adjuvant chemotherapy with the complete response rate at 73.3% and partial response at 11.1%. The most frequent chemotherapy was BEP regimen (bleomycin, etoposide, cisplatin). With the mean follow up time at 56.0 months, 12 patients (15.8%) developed recurrence and only an advanced stage was the independent prognostic factor. The ten year progression free survival (PFS) and overall survival rate of our study were 81.9% and 86.2%, respectively. In conclusion, MOGCT often occurs at a young age. Treatment with fertility sparing operations and adjuvant chemotherapy with a BEP regimen showed a good outcome. An advanced stage is a significant prognostic factor for recurrence.

• 한국임상수의학회지
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• 제26권6호
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• pp.612-615
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• 2009

10년령의 수컷 잡종견이 3개월 간의 구강내 궤양성 종양을 주증으로 내원하였다. 신체검사상 오른쪽 상악 잇몸에서 돌출된 구강내 종양이 관찰되었다. 내원당시 전이소견은 관찰되지 않았으며 구강 종양의 절제생검을 통한 조직검사결과 전반적인 상피양 세포와 일부 방추세포를 가진 전형적인 신경내분비종으로 의심되는 소견이 관찰되었다. 멜라닌 과립으로 추정되는 소견은 관찰되지 않았지만 악성종양에서 관찰되는 세포의 유사분열은 다수 관찰되었다. 확진을 위해 조직 절제 단면에 Melan A를 이용한 면역화학조직 염색을 실시하였으며, 그 결과는 강한 양성반응을 나타내었다. 조직검사와 조직면역염색을 통하여 종양은 멜라닌 결핍 악성흑색종으로 진단되었다. 결론적으로 본 증례의 경우 개에서 멜라닌결핍 악성흑색종의 진단에 Melan A를 이용한 면역화학조직염색이 유용함을 보여준다고 생각된다.

• 대한두개안면성형외과학회지
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• 제23권2호
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• pp.77-82
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• 2022

Sarcomatoid squamous cell carcinoma (SSCC), a biphasic malignant tumor consisting of atypical squamous epithelial and mesenchymal elements mixed with epithelioid and spindle cells, is a variant of squamous cell carcinoma. Cutaneous SSCC is very rare and aggressive and has a poor prognosis. Here, we report a case of cutaneous SSCC with satellites and in-transit metastases. A 79-year-old woman presented with a protruding mass on the left temporal area sized 1.2×1.0 cm. The punch biopsy report indicated keratoacanthoma or well-differentiated squamous cell carcinoma. The size of the tumor increased to 2.7×2.0 cm after 8 days. An excisional biopsy was performed with a 2 mm safety margin. The tumor was identified as SSCC with a clear resection margin. Reoperation was performed thrice with an increased safety margin of 10 mm; however, the cancer recurred along with satellites and in-transit metastases. Chemoradiotherapy was administered; however, the size of the tumor increased along with satellites and in-transit metastases. The patient expired 162 days after the initial excision. Complete excision and immediate multidisciplinary approach should be combined during the early stages due to the aggressiveness and poor prognosis of cutaneous SSCC with satellites and in-transit metastasis.

• IMMUNE NETWORK
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• 제16권2호
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• pp.116-125
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• 2016

Medical records of 139 tumors from 114 dogs that underwent surgery from May 2010 through March 2015 were retrospectively reviewed. Among 114 dogs, females (64.9%) were significantly more common than males (35.1%) (p<0.05). Dogs aged 6 to 10 years were more presented than non-tumor patients, however, there was no significant difference. The mean age (±SD) was 10.3±3.0 years. Although we found no significant difference of breed predisposition, the most common breed was Maltese (19.3%), followed by Shih-Tzu (14.0%), and Yorkshire terrier (13.2%). Proportional morbidity ratios (PMRs) of mammary gland, oral cavity, and skin tumors were high in Poodles, Yorkshire terriers, and Golden retrievers, respectively. Mammary gland (36.0%) was the most common site, followed by skin and soft tissues (12.2%), oral cavity (10.8%), and digestive organs (8.6%), but there was no significant difference. The objectives of surgery were curative surgery (86.2%), biopsy (4.9%), and palliative surgery (6.5%). In this study, 123 of 139 tumors had histopathological diagnoses. Adenocarcinoma was the most common type (n=24), followed by adenoma (n=17), soft tissue sarcoma (n=13), benign mixed tumor (n=5), and others (n=64). Recurrence or suspected metastasis was identified in 26 dogs. Median survival times of malignant mammary gland tumors, skin and subcutaneous tumors, and splenic tumors were 1,563.0±1,201.7, 469, and 128 days, respectively.

• 대한두경부종양학회지
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• 제26권2호
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• pp.240-242
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• 2010

Primary squamous cell carcinoma of the thyroid gland is a very rare event, representing much less than 1% of all malignant tumors of the thyroid gland. The cancer is characterized by rapidly progressive clinical course in spite of its differentiated morphologic features. In most cases, a squamous epithelium is believed to be a result of metaplasia of a follicular epithelium, although in rare exceptions, it can originate from a remnant of the thyroglossal duct or ultimobranchial body. Squamous cell carcinoma of the thyroid gland can occur in a pure form or mixed with adenocarcinoma. Because their clinical behavior is more aggressive than that of other malignant neoplasm of thyroid gland, the tumor should be treated more vigorously at its initial stage. Recently, authors experienced one case of primary squamous cell carcinoma of the thyroid gland. We report our case with a brief review of literature.

• 대한두경부종양학회지
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• 제40권1호
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• pp.37-41
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• 2024

Carcinoma ex pleomorphic adenoma is an uncommon malignant salivary gland tumor that arises from a long-standing pleomorphic adenoma. The carcinomatous component of carcinoma ex pleomorphic adenoma can possess virtually any histologic subtype of salivary gland cancer. We experienced a case of a 61-year-old patient who presented with a right parotid mass that was initially palpated 20 years ago, with a sudden increase in size in the last few months. Radiological and cytological findings from fine needle aspiration biopsy could not exclude malignancy. Total parotidectomy and selective neck dissection were performed for treatment, and carcinoma ex pleomorphic adenoma with mixed carcinoma components of salivary duct carcinoma and myoepithelial carcinoma was diagnosed. After receiving postoperative radiation of 6000 cGy over 6 weeks, there has been no recurrence up to the 18-month follow-up. We report this rare case of carcinoma ex pleomorphic adenoma with mixed malignancy subtypes, accompanied by a review of literature.

• 생명과학회지
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• 제17권12호
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• pp.1766-1770
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• 2007

본 증례는 개의 유선에서 발생한 골형성성의 악성 혼합 유선 종양으로 샘포의 암종성 변화를 동반하고 있다. 종양은 12년령 암캐의 좌측 5번째 유선에서 절제되었으며 직경 $2{\sim}2.5cm$의 단단한 mass로 절단 시 경도가 높은 골성의 구조를 가지고 있었다. 현미경학적 관찰 시, 골유사 물질이 미네랄 침착되고 있었으며 다수의 골형성 세포와 일부 파골세포가 골생성 종양 기질 전반에 걸쳐서 관찰되었다. 이러한 골유사 병변은 높은 밀집도를 보이는 근상피 세포와 연접하고 있었으며 이러한 세포들은 수 개의 유사분열상을 나타내고 있었다. 이와 더불어, 유선세관과 샘포의 암종성 변화를 보이는 세포들이 인접 기질로 침습하고 있는 모습이 관찰되었고 이것 역시 증가된 근상피 세포들로 둘러싸여 있었다. 본 증례에서 볼 수 있는 이러한 세포들의 출현은 동시 발생된 악성 종양의 형태를 제시할 수 있으며 종양의 기원은 상피 유래의 암종성 조직과 중간엽 유래의 육종성 연골 및 골 조직으로 구별할 수 있겠다.

• Nuclear Medicine and Molecular Imaging
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• 제40권1호
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• pp.16-22
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• 2006

목적 :. 악성 혼합 뮬러리안 종양(malignant mixed Mullerian tumor, MMMT)은 매우 드문 자궁의 악성질환으로 매우 치명적인 임상경과를 보인다. 현재까지의 적절한 치료법은 수술적으로 완전제거를 하는 것이다. 이 연구에서는 MMMT 환자에서 진단시 병기결정과 추적관찰에 재발 및 잔류암을 진단하는데 FDG PET의 역할을 알아보고자 하였다. 대상 및 방법: MMMT로 진단 후 수술적 치료전 병기결정을 위해 검사한 환자가 1명, 수술 및 치료후 재발 및 잔류암을 검사하기 위해 9명의 환자가 FDG PET을 시행하였다. PET의 판독은 국소 대사항진 병소를 주로 육안적으로 판정하였다. 추적관찰 기간 동안의 종양표지자 CA 125 값과 영상검사, 병리조직 소견을 비교 평가하였다. 결과: 10명의 환자 중 3명에서 PET에서 이상 섭취소견이 있었다. FDG 양성인 환자의 한 예에서는 CA 125가 증가하였으며 이 경우 병리학적 소견에서 선암분획(carcinomatous element)인 높은 양상이었다. 이 경우 해부학적 영상법으로 찾을 수 없는 병소를 PET 영상에서만 찾을 수 있었다. 이에 반하여 다른 한 예에서는 CA 125가 추적관찰기간 동안 정상이었는데 PET 영상에서 재발 병소를 찾을 수 있었으며 해부학적 영상법보다 더 많은 병소를 찾을 수 있었다. 이 경우는 병리학적인 소견이 주로 육종분획(sarcomatous element)이 높은 양상이었다. 다른 한 예에서도 추적 기간 동안의 CA 125 상승이 관찰되었고 이 경우 선암분회이 역시 높게 관찰되었다. PET 검사에서 이상 소견이 없는 7 예에서는 추적관찰 기간($51.7{\pm}12.2$개월) 동안 종양표지자의 상승이나 재발의 소견은 없었으며 평균 재발없는 생존기간이 $36.4{\pm}6.0$ 개월이었다. 추적기간 중 PET상 이상 소견이 있었던 2명의 예에서는 추적관찰 기간($6.0{\pm}4.2$개월) 내에 모두 재발이 확인되었다. 결론: FDG PET은 MMMT 환자의 진단 당시 예상치 못했던 원위부의 전이나 치료 후 추적관찰 기간 동안 재발이나 잔류암의 진단에 유용한 검사법으로 이용할 수 있겠다.

• Journal of Korean Neurosurgical Society
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• 제57권6호
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• pp.473-477
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• 2015

A 69-year-old man was referred with left exophthalmos. Computed tomographic (CT) findings detected a well-circumscribed mass in the left side of the intraorbital cavity. At that time, he refused the further evaluation and treatment. About three years later, the size of the mass had enlarged, and the patient's symptoms were getting worse. The mass was completely removed with frontotemporal craniotomy and superolateral orbitotomy. In operative findings, the mass had originated in the lacrimal gland and was well-encapsulated without invasion to the surrounding tissue. In the pathologic findings, the tumor consisted of pleomorphic adenoma with osteosarcomatous change of stromal components. Postoperatively, the adjuvant radiotherapy was done four weeks later. The patient's symptoms were improved. The pleomorphic adenoma with osteosarcomatous change is extremely rare and appropriate treatment is not clearly established. We would like to report this rare case with a review of the literature.

• Journal of Chest Surgery
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• 제14권2호
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• pp.127-130
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• 1981

A 39-year-old male was admitted to Dept. of Thoracic Cardiovasc. Surgery, Korea University Hospital with the chief complaints of progressively enlarged mass on right upper lung which revealed on routine chest P-A since 4 Years ago. Chest PA and tomography revealed well circumscribed huge mass of 7cm. in diameter without invasion on bronchus. so, right upper lobectomy was performed under impression of lung cancer. Postoperative pathologic examination revealed pulmonary blastoma. Pulmonary blastoma is accepted as a distinctive neoplasm recently. One case of typical pulmonary blastoma is reported, and the previous literature is reviewed. There are no specific clinical or radiologic feature of pulmonary blastoma. The presentation is can be that of any other pulmonary tumor although a peripheral situation is usual and a large size is often attained before detection. Pulmonary blastoma is a mixed tumor with malignant epithelial and connective tissue components with a distinctive resemblance to fetal lung. The treatment of choice is surgical excision but the overall prognosis is poor. There is no evidence of recurrence or metastasis on follow-up study during 6 months period after right upper lobectomy.