• 대한세포병리학회지
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• 제4권2호
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• pp.146-149
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• 1993

Warthin's tumor is a benign salivary gland tumor, occurring primarily in the parotid gland. It's incidence is 4% of all salivary gland tumors. The cytologic finding of Warthin's tumor is characteristic and it consists of sheets of oncocytes and scattered lymphocytes in the background of granular material. We reports three cases of Warthin's tumor showing characteristic cytologic findings. The patients consisted of two males and a female and their ages were 60, 73, and 69 years, respectively. All the lesions were in the parotid gland. The cytologic findings showed sheets of oncocytic epithelial cells and scattered lymphocytes in the back-ground of granular materials and many red blood cells. In one case, the back-ground was composed of many Inflammatory cells including lymphocytes, neutrophils and macrophages.

• 대한치과의사협회지
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• 제9권4호
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• pp.175-181
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• 1971

• 대한세포병리학회:학술대회논문집
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• 대한세포병리학회 1993년도 제7차 춘계학술대회 초록집
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• pp.14-15
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• 1993

• 대한두경부종양학회지
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• 제11권2호
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• pp.153-157
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• 1995

The effects of radiation therapy on salivary function of parotid gland were studied 20 male patients by radiation for tumors of head and neck. Saliva samples were collected before, during the radiotherapy and follow up. Parotid salivary function was quantitatively evaluated using a sialometry, sialochemistry, and scintigraphy. Salivary flow rates decreased in all individuals after irradiation. Glands than were partially irradiated were more likely to have some residual function than fully irradiated glands. Sodium and chloride contents were increased in parotid saliva of radiation patients where as potassium content was not changed definitively, pH was not changed during radiotherapy, but increased during follow up period. Scintigraphic stimulatory response rates showed similar result as flow rates. These results showed that exclusion of partial parotid gland from radiation is necessary to prevent severe xerostomia.

• Asian Pacific Journal of Cancer Prevention
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• 제17권11호
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• pp.4973-4976
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• 2016

Objective: This article concerns evaluation of the sensitivity, specificity and accuracy of FNAB for pre-surgical diagnosis of benign and malignant lesions of major and minor salivary glands of patients treated in the Department of Head and Neck Surgery of Erasto Gartner Hospital. Methods: This retrospective study analyzed medical records from January 2006 to December 2011 from patients with salivary gland lesions who underwent preoperative FNAB and, after surgical excision of the lesion, histopathological examination. Results: The study had a cohort of 130 cases, but 34 cases (26.2%) were considered unsatisfactory regarding cytology analyses. Based on the data, sensitivity was 66.7% (6/9), specificity was 81.6% (71/87), accuracy was 80.2% (77/96), the positive predictive value was 66,7% (6/9) and the negative predictive value was 81.6% (71/87). Conclusion: Despite the high rate of inadequate samples obtained in the FNAB in this study the technique offers high specificity, accuracy and acceptable sensitivity.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제16권2호
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• pp.163-166
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• 1994

Pleomorphic adenoma(benign mixed tumor) is the most common tumor of the major salivary glands, constituting approximately 70 per cent of benign tumors of these glands. The term mixed tumor was introduced in the nineteenth century to stress the dual origin of this neoplasm from epithelial and mesenchymal elements, and the designation pleomorphic adenoma is preferred because it emphasizes both the epithelial origin and the variety of histological patterns found in this common salivary gland lesion. Rauch, in a review of 4245 pleomorphic adenomas, found 92.5 per cent in the major salivary glands and 6.5 per cent in the minor salivary glands, 8 per cent arose in the submandibular glands, and in another large series of over 6,000 cases, approximately 4 per cent arose in the hard and soft palates with equal frequency in each. The prognosis of pleomorphic adenoma depends more upon the choice and adequacy of treatment than upon histological appearances. The accepted treatment for this tumor is excision. With adequate surgery recurrence rates of less than 1 per cent can be obtained. In this hospital, I experienced two patients who were identified PMA which occurred in the hard palate and submandibular gland. The lesions were successfully treated by surgery.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제18권1호
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• pp.115-119
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• 1996

Myoepithelioma is composed exclusively of myoepithelial cells. Myoepithelial cells are ectodermally derived contractile cells that can be routinely identified in many normal tissues having secretory function such as major and minor salivary glands, lacrimal gland and sweat gland. Tumors composed exclusively of myoepithelial cells, so-called myoepitheliomas, are rare-less than 1% of all salivary gland tumors. Grossly, these tumors are well demarcated. The external surface is smooth and may be bosselated. The cut surface is white and homogenous. Microscopically, these tumors are surrounded by a thin fibrous capsule. They are composed of benign-appearing spindle- shaped and/or polygonal cells. Mitoses are rare. Frequently these tumors contain myxomatous stroma which is susceptible to alcial blue stain. Clinically, myoepitheliomas present as slow-glowing, painless masses and can not distinguished from pleomorphic adenomas. Treatment is the same as for pleomorphic adenoma, and the surgical excision should include a margin of normal tissue. Although the majority of myoepitheliomas have behaved in a beingn manner, pleomorphism and mitotic activity have been associated with local aggressiveness.

• 치위생과학회지
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• 제8권3호
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• pp.207-214
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• 2008

본 연구는 구강내 발생하는 소타액선 종양의 발생 빈도와 조직병리학적 특성에 대한 후향적 연구로서 한국인에서 나타나는 소타액선 종양의 특성을 연구하고자 1990년부터 2006년 8월까지 연세대학교 치과대학 부속병원 구강악안면외과, 연세대학교 의과대학 부속 영동 세브란스병원, 순천향대학교 부속 부천병원에 내원한 200명의 소타액선 종양 환자를 대상으로 치과 및 의과 임상 기록지 검토와 H/E 슬라이드를 재검토하여 다음과 같은 결론을 얻었다. 1. 200명의 환자 중 양성 종양은 123예(61.5%), 악성종양은 77예(38.5%)였으며 남성에서는 87예, 여성에서는 113예였다. 2. 가장 흔하게 발생한 소타액선 종양은 다형성 선종이며 선양 낭성 암종, 점액표피암종, 와틴씨 종양, 선암종과 다형성 선종에서 발생한 악성 종양, 림프관종 등의 순이었다. 3. 호발 부위는 경구개(42.5%), 연구개(9%), 협점막(6%), 입술(3.5%) 부위였다. 4. 발생 연령은 4세부터 70세까지 다양하게 분포하였으며 50대에서 가장 많았다. 양성 종양의 발생 평균 연령은 46.2세였으며 악성 종양의 발생 평균 연령이 56.1세였다. 5. 다형성 선종은 가장 호발한 소타액선 종양으로서 모두 104예였으며 남성 38명, 여성 66명에서 발생하였다. 평균 발생 연령은 46.7세였으며 구개 부위에서 가장 많이 발생하였다. 조직학적 소견은 관 구조 형성, 별 모양, 다각형, 방추형, 형질세포양(plasmacytoid), 연골양, 점액양 구조를 보였으며 불완전한 피막과 종양 피막을 뚫고 다발성으로 발생하는 소견이 관찰되었다. 6. 선양 낭성 암종은 가장 호발한 악성 타액선 종양으로 모두 32예였으며 남성 16명, 여성 16명에서 발생하였다. 평균 발생 연령은 57.4세였으며 경구개 부위에서 가장 많이 발생하였다. 조직학적 소견은 cribriform pattern, 관상 구조, 판상 구조 형성, 종양 세포의 신경 주위 침습 등을 보였다. 7. 점액표피암종은 모두 25예였으며 남성 10명, 여성 15명에서 발생하였다. 평균 발생 연령은 50.0세였으며 경구개 부위에서 가장 많이 발생하였다. 조직학적 소견은 점액 세포, epidermoid-type 세포, intermediate cell의 분포가 대부분 저등급을 보였다. 이외에도 와틴씨 종양, 선암종과 다형성 선종에서 발생한 악성종양, 림프관종 등이 발생하였다. 8. 한국인의 소타액선 종양의 발생 빈도는 양성 종양이 높으며 특히 다형성 선종이 많았고 여성 발생, 구개 부위 발생이 많았으며 다형성 저등급 선암종 등 특정 소타액선 종양의 발생이 극히 적었다.

• 대한세포병리학회지
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• 제12권2호
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• pp.97-103
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• 2001

Carcinoma ex pleomorphic adenoma(CXPA) is a rare malignant tumor of the salivary gland, fine needle aspiration cytology(FNAC) of which are rarely reported. We retrospectively reviewed FNAC of five cases of histologically proven CXPA of the salivary glands diagnosed in Seoul National University Hospital to evaluate their cytologic characteristics. Histologically, the carcinoma components were low-grade in three cases and high-grade in two cases. The cytologic diagnosis were malignancy in two cases(40%), suspicious for malignancy in one(20%), and benign(pleomorphic adenoma) in two(40%). All of the high-grade carcinomas were correctly diagnosed by FNAC, however, 2 cases of low-grade carcinomas were diagnosed as benign by FNAC. The low sensitivity in cytologic diagnosis is due to interpretative difficulties in low-grade tumors. The characteristic cytologic features of CXPA were high cellularity, necrotic, bloody, and inflammatory background, marked nuclear overlapping, coarsely granular chromatin, prominent macronucleoli, and atypical mitosis in epithelial component in addition to the typical biphasic pattern of pleomorphic adenoma consisting of epithelial cells admired with spindle-shaped cells and chondromyxoid stroma. Even though low-grade tumors show mild pleomorphism, the cytologic findings of necrotic background, moderate to high cellularity, and nuclear overlapping could lead to an accurate cytodiagnosis of CXPA.

• 대한두경부종양학회지
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• 제16권1호
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• pp.42-45
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• 2000

Background and Objectives: To review efficacy of the fine-needle aspiration cytology(FNAC) in patients with salivary glands lesions. Materials and Methods: From January 1994 through June 1999, FNACs and surgical biopsies were carried out on 109 patients with salivary gland diseases. The medical records were reviewed retrospectively. Benign tumor was found in 81 patients, and malignant tumor was in 19 patients. Nine patients had inflammatory lesion. Results: In 6 of 109 cases the aspiration was inadequate. Of the remaining 103 patients, FNAC correctly diagnosed 87 lesions(84.5%). For benign tumor lesions, the accuracy was 91%(71/78), and for malignant lesions 55.6%(10/18). The accuracy for inflammatory lesions was 85.7%(6/7). Regarding the capacity to discriminate between neoplastic and nonneoplastic lesions, sensitivity, specificity and total diagnostic accuracy were 99%, 85.7% and 84.5% respectively. Regarding the capacity to discriminate between malignant and benign tumors, sensitivity and specificity were 55.6% and 97.4% respectively. FNACs misdiagnosed malignant tumors as benign lesions in eight patients, in which three were with adenoid cystic carcinomas. Carcinoma ex pleomorphic adenoma, malignant lymphoma and mucoepidermoid carcinoma 'were others. Conclusion: FNAC showed high accuracy to diagnose benign lesions in salivary gland diseases. But the accuracy was rather low for malignant lesions. If a salivary gland lesion was suspected for malignant tumor, other diagnostic methods such as tissue biopsy should be seriously considered.