• 제목/요약/키워드: 다형선종

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일차성 폐의 침샘형 악성 다형선종 (Primary Pulmonary Carcinoma Ex-pleomorphic Adenoma of the Salivary Gland Type)

  • 박상준;조성우;이희성
    • Journal of Chest Surgery
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    • 제43권2호
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    • pp.217-220
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    • 2010
  • 소위 다형선종이라 불리는 혼합종은 주로 침샘에 기원하며 폐에서 발생한 예는 세계적으로 보고된 예가 극히 드물다. 이 신생물은 저악성도를 나타내기도 하나 재발이나 원격전이와 같은 공격적인 성향을 보이는 경우도 있다. 우리는 종양의 완전 절제후 병리학적으로 폐의 일차성 악성 다형선종임을 확인하였고 술 후 다발성 전이와 같은 악성 신생물의 소견을 보이는 증례를 경험하여 이를 보고하는 바이다.

다형선종 수술 후 발생한 이하선 점액표피양암종 (A Case of Mucoepidermoid Carcinoma after Superficial Parotidectomy for Pleomorphic Adenoma)

  • 유준혁;박민우;백승국;채양석;정광윤
    • 대한두경부종양학회지
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    • 제28권1호
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    • pp.31-33
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    • 2012
  • Mucoepidermoid carcinoma is most frequent malignant tumor of parotid gland. However, mucoepidermoid carcinoma arising from pleomorphic adenoma has been disputed and rarely reported. 54-year-old woman with pleomorphic adenoma underwent superficial parotidectomy. And 15 years later, she diagnosed mucoepidermoid carcinoma at the same side. We report the case with a review of literature.

협부 종물 2례:부이하선의 다형선종과 혈관 평활근종 (Two Cases of Buccal Mass:Plemorphic Adenoma of an Accessory Parotid Gland and Angiomyoma)

  • 이상혁;이노희;박일석;김진환
    • 대한두경부종양학회지
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    • 제23권1호
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    • pp.63-66
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    • 2007
  • The differential diagnosis of lesions in buccal area include lipoma, neurofibromas, epidermoid cyst, salivary ducts calculus, hemangioma, lymphadenopathy. Accessory parotid glands is defined as salivary gland tissue adjacent to the parotid duct, but separated from the body of parotid and it may be found in approximately 20% of human parotid glands. The appearance of an accessory parotid tumor is rare, with a reported frequency of 7.7% of all parotid neoplasm. Angiomyoma, which is also termed angioleiomyoma, is a rare solitary subcutaneous tumors arising from the vascular smooth muscle. It often occur in the extremities and is rarely found in buccal area. We present 2 cases of rare tumor in buccal mass and resected surgically without facial nerve palsy.

조영증강 전산화단층촬영검사에서 보이지 않는 이하선의 다형선종 (Invisible Parotid Gland Pleomorphic Adenoma on Contrast Enhanced-Computed Tomography)

  • 허재형;김다미;구본석;장재원
    • 대한두경부종양학회지
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    • 제32권2호
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    • pp.85-89
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    • 2016
  • Pleomorphic adenomas is the most common tumor of parotid gland and usually located and confined in superficial lobe of parotid gland. Computed tomography (CT) is commonly used to initially evaluate salivary gland lesion, but contrast-enhanced CT may sometimes fail to reveal lesions in spite of a high clinical suspicion. For this reason, ultrasonography (US) can be used as the first-line image work-up in some cases of parotid gland benign tumors. We experienced a case of a 60-year-old woman without underlying disease presenting a palpable parotid mass in which the initial CT examination was reported as 'no obvious mass detected'. However, the lesion was revealed in US and histologically confirmed as pleomorphic adenoma. The patient underwent superficial parotidectomy through modified facelift incision. To the best of our knowledge, this is the first report of invisible major salivary gland tumor on CT in the Korean literature.

원발성 다형선종과 재발성 다형선종의 면역조직화학적 특성 (Immunohistochemical Characteristics of Primary and Recurrent Pleomorphic Adenoma)

  • 서명환;하정훈;이경분;정영호;권성근;김광현;성명훈
    • 대한두경부종양학회지
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    • 제21권2호
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    • pp.146-150
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    • 2005
  • Background and Objectives: When the pleomorphic adenoma(PA) recures, the tumor tends to become a multinodular mass that infiltrates into the normal tissue which is not a common condition for a benign tumor. This manifestation is probably due to the difference in cell biology of the recurrent tumor compared to that of the primary PA. The aim of this study is to assay the immunhistochemical characteristics of the recurrent PA compared to the primary PA and to evaluate whether this property can be used for developing a method that can select the patients who have higher risk to recur. Materials and Methods: Thirteen patients were enrolled in the primary PA group and 15 patients who had a recurrent PA were enrolled in the recurrent PA group. To evaluate the cell biology of the tumor, immunohistochemical stainings of Ki-67, bcl-2 and p53 were performed. Results: There was no difference in the expression of Ki-67 (p=0.117, p=.208) and p53 (p=.430, p=.328). The extent stained by bcl-2 was significantly larger in the recurrent PA group (p=.033, p=.014). The expression of bcl-2 did not increase while time passed. Conclusion: The high expression of bcl-2 seems to be a property of the recurrent PA group which can be found even during first operation before recurrence. By this immunhistochemical characteristic, we would be able to sort out the patients who have higher risk to recur.

림프절 전이가 발생한 전이성 다형선종 1예 (A Case of Metastasizing Pleomorphic Adenoma Metastasized to Lymph Node)

  • 박성호;김남영;김경헌;이국행;이병철;이명철;최익준
    • 대한두경부종양학회지
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    • 제32권2호
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    • pp.15-18
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    • 2016
  • Pleomorphic adenoma is the most common benign neoplasm of salivary glands. Pleomorphic adenoma can metastasis without malignant transformation. Metastasizing pleomorphic adenoma is equal to pleomorphic adenoma histologically yet metastasis to distant sites. Most Metastasizing pleomorphic adenoma are diagnosed many years following the initial treatment. 45-year-old man was found to have an asymptomatic right submandibular mass. A right submandibular gland excision and selective neck dissection was performed and pathology confirmed metastasizing pleomorphic adenoma. We report this case with a brief literature review.

악하선에 발생한 종양 혈전을 동반한 다형선종유래 선암종 (A Case of Adenocarcinoma Ex Pleomorphic Adenoma with Tumor Thrombus of Submandibular Gland)

  • 권철;박철언;신일호;은영규;권기환
    • 대한두경부종양학회지
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    • 제26권2호
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    • pp.216-220
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    • 2010
  • Carcinoma ex pleomorphic adenoma is rare, aggressive, poorly understood malignancy that occurs in the salivary glands. The patient was 70-year-old male presenting ovoid elevated submandibular mass that has been present for 30 years and rapid growing for 6 months. The initial cytologic finding by fine needle aspiration biopsy showed highly malignant cells and the radiologic finding revealed a $3.6{\times}3.7{\times}4.8cm$ sized mass with cervical lymphadenopathy. After wide excision of submandibular gland and modified radical neck dissection, the histologic examination revealed that tumor was composed partly of a benign pleomorphic adenoma and partly of an adenocarcinoma component with areas of calcification and frequent angiolymphatic invasion. We present a rare case of adenocarcinoma ex pleomorphic adenoma with tumor thrombus in the submandibular gland.

상측경부에 발생한 악하선 외 다형선종 1예 (A Case of Extra-Submandibular Gland Pleomorphic Adenoma in Upper Lateral Neck)

  • 홍석정;이미지;김승우
    • 대한두경부종양학회지
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    • 제34권2호
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    • pp.65-67
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    • 2018
  • Pleomorphic adenoma (PA) is a benign tumor which usually originates from major and minor salivary glands. This tumor arising outside submandibular gland (SMG) is extremely rare. To author's knowledge, only four cases have been reported so far in English literature. Its pathogenesis is still unclear, but it can be explained by embryologic theory of major salivary gland. A 68-year-old man with an incidental mass on left upper lateral neck visited to our clinic. The radiologic findings showed well-margined round mass outside left SMG. The excisional biopsy revealed a pleomorphic adenoma. We report the rare and unique case with a brief literature review.

수술 전 세침흡인세포검사에서 악성으로 의심되었던 이하선 양성 종양 1예 (A Case of Benign Parotid Tumor Misdiagnosed for Parotid Cancer on Preoperative Cytology)

  • 이은정;황혜진;변형권
    • 대한두경부종양학회지
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    • 제31권1호
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    • pp.9-13
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    • 2015
  • Fine needle aspiration cytology as a diagnostic workup of parotid gland tumor is a simple and useful method. Although fine needle aspiration cytology could not predict accurate diagnosis in all cases, it is usually helpful in differentiating malignancy and benign lesions. A 35-year-old female was found to have a parotid mass for 1 year. Preoperative evaluation including computed tomography and magnetic resonance imaging were non-diagnostic, but, fine needle aspiration cytology on parotid mass showed the suspicion of a low-grade mucoepidermoid carcinoma. Superficial parotidectomy and selective neck node dissection were done based on cytology. However, final pathological examination confirmed benign pleomorphic adenoma. Here, the diagnostic accuracy and cautions in interpretation of result of fine needle aspiration cytology is discussed with respect to the case.

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귀밑샘에 생긴 다형선종의 수술적 치료로써의 제한적 국소절제술 (Lumpectomy as a Surgical Treatment of Primary Benign Pleomorphic Adenoma of the Parotid Gland)

  • 이형석;김준식;김남균;이경석;이윤정
    • Archives of Plastic Surgery
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    • 제37권4호
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    • pp.447-451
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    • 2010
  • Purpose: Pleomorphic adenoma is the most common benign neoplasm in parotid gland. Superficial parotidectomy was usually used to remove the pleomorphic adenoma. But, this method has to remove tumor with normal parotid tissue. Authors did lumpectomy to remove pleomorphic adenoma in parotid gland, because pleomorphic adenoma is wrapped in a capsule as it grows. The purpose of this study is to evaluate the efficacy of lumpectomy as a treatment of pleomorphic adenoma in parotid gland. Method: From 2002 to 2008, 8 patients underwent the lumpectomy of the pleomorphic adenoma in parotid gland. Occurrence of the complications and recurrance were evaluated. Result: Patients were followed-up for a mean 45 months. There were no recurrance or no complication after lumpectomy. Conclusion: Authors suggest that the lumpectomy lead to decrese complications, recurrane and can be used as a procedure for the resection of pleomorphic adenoma in parotid gland.