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1.
OBJECTIVE: The aim of this study was to evaluate the effectiveness of fine-needle aspiration (FNA) in the diagnosis of primary lymphoid processes of the salivary gland. DESIGN: A retrospective study. METHOD: Between 1987 and 1994, 35 patients who underwent fine-needle aspiration (FNA) of the salivary gland had a diagnosis of a primary lymphoid process. Most presented with palpable parotid (28 patients) or submandibular (4 patients) gland masses which prompted a clinical diagnosis of pleomorphic adenoma. FNA was performed with immediate on-site evaluation. Flow cytometric cell-surface-marker analysis was performed in 28 of the 35 cases to determine the clonality of the B-cell proliferations. RESULTS: Sixteen cases of reactive hyperplasia and nine cases of malignant lymphoma diagnosed by FNA were confirmed by subsequent histopathologic examination. Lymphoma was confirmed in six of eight cases diagnosed as suspicious for lymphoma by FNA. Hodgkin's disease was suspected but not confirmed in one case and was diagnosed as a probable Warthin's tumour in another case. In all cases, the FNA diagnosis of either a reactive or malignant lymphoid process was unexpected and influenced the patient's further management. For patients diagnosed with an intraparotid lymph node, surgery could be deferred for a short period with the hope that the lymphadenopathy would spontaneously regress. For patients with a preoperative FNA diagnosis of lymphoma, a more limited biopsy could be performed, thereby reducing the operative risk to the patient and plans to process the tissue according to the institution's lymphoma protocol could be made. CONCLUSION: Clinically, reactive intraparotid lymph nodes and lymphomas present as parotid enlargements that are indistinguishable from pleomorphic adenomas. FNA is the only method of accurately establishing a preoperative diagnosis in these patients.  相似文献   

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The authors study the ultrasound signs of the adrenal gland based on 5 different types of operated adrenal tumours (a lipoma, an adrenal cortical adenoma, a cyst, a corticoadrenaloma, an adrenal metastasis from a renal cell carcinoma). The ultrasonographic morphological criteria of the normal adrenal gland and each type of tumour are recalled and are illustrated by clinical cases. The value of ultrasonography in the investigation of this organ was evaluated in comparison with other imaging techniques. It constitutes a good first-line diagnostic guiding examination, but needs to be completed by other investigations (computed tomography, magnetic resonance imaging, etc.). Ultrasonography can also reveal asymptomatic adrenal tumours ("adrenal incidentalomas") in which the therapeutic decision (surveillance or surgery) must be based on criteria of size and appearance after a complete laboratory and morphological assessment.  相似文献   

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Records of 60 patients with primary salivary gland tumors were retrospectively analyzed. Most were European Jews, 60% were males, and the average age was 57 years. The parotid gland was the most frequent site of origin (76%). The main presenting symptom was painless swelling. Pain or facial palsy were rare and associated with poor prognoses. The most common types were mucoepidermoid, adenocystic, adenocarcinoma and malignant, mixed carcinomas (in descending order of frequency). Squamous cell carcinoma was the most prevalent histologic type. Most patients presented at an advanced stage. Treatment was mainly surgical and postoperative radiotherapy was given to those with advanced disease. Most recurrences occurred within 3 years of initial treatment. Actuarial 10-year survival for all patients was 40%. Superior survival rates were achieved in women, probably due to less aggressive malignancies. Low grade mucoepidermoid carcinoma had a favorable prognosis, whereas anaplastic carcinoma had the worst. Other significant prognostic factors included stage and grade of disease.  相似文献   

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I discuss radiation-induced salivary gland tumors, with special emphasis on those tumors thought to be secondary to childhood head and neck irradiation for benign diseases. I report such a case and review the literature. Statistically, 77.6% of irradiation-induced tumors occur in the parotid gland and 22.4% in the submaxillary and minor salivary glands. A greater proportion of malignant tumors are noted in the submaxillary and minor salivary glands. At present, there is no demonstrable relationship between tumor occurrence and the amount of radiation recieved. Young children are more susceptible to irradiation-induced salivary tumors than older individuals.  相似文献   

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OBJECTIVE: To evaluate the frequency of human papillomavirus (HPV) 16 and 18 infection in patients with different grades of cervical intraepithelial neoplasia (CIN). METHOD: Five-hundred and five patients with CIN, referred for conization, were included in this study. Before conization, cytological material for in situ hybridization was obtained from the uterine cervix to detect the presence of HPV 16 and 18 infection. RESULT: Among all patients with CIN, 82 (16.2%) were solely HPV 16 and 51 (10.1%) were solely HPV 18 positive. There were 133 patients (26.3%) positive for HPV 16 or HPV 18 and 31 patients (6.1%) were positive for both viral types, giving an overall HPV 16/18 infection rate of 32.4%. There were 15 (55.5%) HPV 16 or HPV 18 positive patients with CIN 1, 45 (33.8%) HPV 16 or HPV 18 positive patients with CIN 2 and 104 (30.2%) HPV 16 or HPV 18 positive patients with CIN 3. CONCLUSION: In patients with CIN 1, HPV 16 and 18 infection was more frequent than in patients with CIN 2, but the difference was not significant. Patients with CIN 2 were infected slightly more frequently, but not significantly, than patients with CIN 3. On the other hand, patients with CIN 1 were significantly more frequently infected than patients with CIN 3.  相似文献   

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OBJECTIVE: To identify preoperative and perioperative features that may lead to a risk of surgical-site infection (SSI) after coronary artery bypass surgery. DESIGN: 884 patients who underwent coronary artery bypass grafting in 1992 and 1993 were studied. The associations between 23 preoperative and perioperative features and the presence of SSI at the donor site or in the chest area were evaluated by univariate analysis followed by multivariate logistic regression analysis. SETTING: A university hospital. RESULTS: 172 patients (19.5%) either had an SSI recorded before discharge or had received antibiotics prescribed for a suspected SSI during the 1-month surveillance period after discharge. Multivariate logistic regression analysis showed an extreme body mass index (BMI; P=.015), female gender (P=.023), and chronic obstructive pulmonary disease (COPD; P=.030) to be independent risk features for SSI. The donor site was infected in 136 patients (15.4%), an event for which female gender (P=.003) was the only independent risk feature. Forty-seven patients (5.3%) had an SSI of the chest area, with diabetes (P=.003) and extreme BMI (P=.010) as independent risk features. CONCLUSION: Extreme BMI, female gender, and COPD are highly significant independent predictors of the development of SSI. Female gender is a risk feature specifically for SSI at the donor site, whereas diabetes and extreme BMI predict it in the chest area.  相似文献   

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This paper reports on epithelial tumours arising primarily in the major and minor salivary glands. The purpose of this presentation is to summarize our experience of salivary gland tumours on the basis of a material comprising of approximately 3000 salivary gland tumours as well as a review of the literature to date. The tumours are classified according to the classification recommended by WHO 1972. The incidence, location, symptomatology, grade of malignancy and treatment of the different tumour types in this classification are reviewed. Diagnostic procedures are discussed and a scheme for surgical treatment and radiotherapy of the different types of salivary gland tumours is proposed.  相似文献   

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The records of 27 patients operated for parotid tumors were reviewed retrospectively. Pleomorphic adenoma was the most frequent tumor (37.1%) and required subtotal parotidectomy in all cases. Twenty percent presented permanent facial paralysis of the marginal mandibular branch. No recurrence has been observed in five years of follow-up. Warthin's tumor, found in 11.1% of patients, was removed by either superficial or subtotal parotidectomy. Parotidean cysts were observed in 7.4% and were excised by superficial parotidectomy. The malignant tumors included squamous cell carcinoma (22.2%), adenoid cystic carcinoma (14.8%), melanoma (3.7%), and renal-cell metastasis (3.7%). All were treated by total parotidectomy with conservation of the facial nerve in 67%. Twenty-five percent had postoperative facial paralysis and 33% developed Frey's syndrome. Thirty-three percent died in the next 5 years from locoregional metastases.  相似文献   

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To define better the risk of epipodophyllotoxin-related acute myeloid leukemia (AML) after extended follow-up and to assess responses to intensive salvage therapy, all patients who developed this complication after treatment for acute lymphoblastic leukemia (ALL) or non-Hodgkin lymphoma (NHL) in consecutive clinical trials at St Jude Children's Research Hospital from 1979 to 1994 were studied. Cases with 'lineage switch' or 'clonal selection' were excluded. Epipodophyllotoxin-related AML developed in 32 of 1140 patients treated for ALL and in three of 332 treated for NHL; it was a first adverse event in 25 and two cases, respectively. The complication was diagnosed at 12-130 months (median 34 months) after the initiation of treatment with epipodophyllotoxins; all but one of the cases occurred within 73 months, indicating that the risk is negligible after 6 years. The predominant karyotypic feature was 11q23 translocations (71% of cases); 21q22 rearrangements were rare. In a stepwise Cox regression analysis, two factors increased the risk of this complication: weekly or twice weekly administration of epipodophyllotoxins (P < 0.001); and the administration of asparaginase immediately before epipodophyllotoxin therapy (P < 0.001). Initial responses to salvage therapy were comparable to those reported for de novo AML: 92% of the evaluable patients entered complete remission after combination treatment. Single-agent therapy with 2-chlorodeoxyadenosine induced complete or partial remissions in one-half of the patients treated. The long-term survival rate was dismal. Of the 17 evaluable patients treated exclusively with chemotherapy, only one is alive at 84 months, compared to three of 16 patients who underwent bone marrow transplantation (alive at 10, 23 and 73 months). Cases of epipodophyllotoxin-related AML constitute a unique clinical syndrome that will require innovative strategies for cure.  相似文献   

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The occurrence of secondary hypogonadism is a common finding in males who seek help with erectile dysfunction, although the relationship to diminished testosterone is unclear. Two possibilities exist regarding both the genesis and maintenance of the hypogonadotropic hypogonadal state. First, a defect in hypothalamic function, resulting in downregulation as well as in alterations of anterior pituitary function; second, estradiol inhibition of gonadotropin release, both of which result in decreased testosterone production. As testosterone levels decrease and estradiol levels increase, the ratio of free testosterone to estradiol reaches a critical point and the estrogenic gonadotropin suppressive effects predominate. This ratio may signal the biological point of no return and could become one of the criteria for defining the separation of the transitional hypogonadal state from the final 'end stage' hypogonadotropic hypogonadal state. As the aging process continues, there is a relative accumulation of fatty tissue, and aromatization accelerates the conversion of testosterone to estradiol. This additional secondary estradiol inhibition results in the maintenance of the testosterone deficient state, and the aging process continues uncontested.  相似文献   

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The clinical course of 130 patients treated for malignant parotid tumors at the three institutions have been reviewed. Fifty-six of these 130 patients developed recurrences following their primary treatment by a surgical procedure. There were a total of 109 recurrences among these 56 patients. The average number of recurrences was two per patient. The average survival from first recurrence was 3.7 years, with the median survival 2 years. The range of survival was 0.5 to 17 years. Once recurrence developed, treatment was by surgery, radiation therapy, chemotherapy, or a combination. Of 56 patients with recurrence, 33 are dead and 9 patients are alive with disease. Fourteen patients are alive and well with no evidence of disease. These NED patients had an average number of 1.6 recurrences and a median survival to date of only 3 years. Our study indicates that for the majority of patients who develop recurrence, survival is relatively short and treatment is usually ineffective in three of four patients. The authors conclude that after a surgical procedure for malignant salivary gland tumors, a trial of wide field postoperative radiation therapy to high dose should be considered as part of the initial treatment.  相似文献   

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BACKGROUND: DNA content determination is a useful tool in the characterization of different malignant tumors. AIM: To measure DNA content in cells of salivary gland tumors as adjunct to histological diagnosis, correlating morphologic and biological features of these tumors. MATERIAL AND METHODS: From the archives of the Pathology service of a general hospital, 21 salivary gland tumors, 15 pleomorphic adenomas, 3 mucoepidermoid carcinomas and 3 cystic adenoid carcinomas were selected. DNA content was determined in the histological samples using a flow cytometric DNA analysis. RESULTS: All pleomorphic adenomas had a normal or diploid DNA content. Fifty percent of malignant tumors had an aneuploid DNA content (1 mucoepidermoid carcinoma and 2 cystic adenoid carcinomas). CONCLUSIONS: DNA determination may help in the histological diagnosis of salivary gland tumors. The presence of aneuploidy suggests malignity.  相似文献   

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Transitional-cell carcinoma is the dominant histological type of malignant tumors of the urinary bladder. There is limited information on risk factors for non-transitional-cell carcinoma (NTCC) of the bladder. We used data from 9 case-control studies on bladder cancer from 6 European countries to examine the association between NTCC, tobacco smoking and occupation. Information on 146 cases diagnosed with NTCC were matched by age, gender and study center to 727 non-cancer population or hospital controls and also with 722 transitional-cell-bladder-cancer controls. Lifetime smoking and occupational history were evaluated. A statistically significant excess risk for NTCC was observed for current smoking [odds ratio (OR) = 3.61, 95% confidence interval (CI) 2.08-6.28]. The risk increased with higher tobacco consumption (OR for highest tertile of pack-years = 7.01, 95% CI 3.60-13.66). The risks were higher for squamous-cell carcinomas than for other types of NTCC. Among major occupational groups, a significant excess risk was seen for field-crop and vegetable-farm workers (OR = 2.06, 95% CI 1.03-4.10). These results indicate that NTCC of the bladder is associated with smoking and specific occupations. The risk pattern seems to differ, in part, from that observed for transitional-cell carcinoma of the bladder.  相似文献   

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OBJECTIVE: To describe an additional case of this rare disease entity, with special reference to its diagnosis and treatment, and to briefly review the literature. METHODS: We report on an 82-year-old male with adrenal myelolipoma that had been incidentally discovered during evaluation for another condition. A left adrenalectomy was performed due to the large size of the tumor and in order to determine its benign or malignant nature. RESULTS: The histopathological findings disclosed an andrenal myelolipoma. CONCLUSIONS: Adrenal myelolipoma is an uncommon tumor type. CT is the most effective diagnostic method. Surgery is advocated in symptomatic cases and in asymptomatic cases with a large tumor mass.  相似文献   

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