9 results on '"William E. Sumner"'
Search Results
2. Outcomes of Pheochromocytoma Management in the Laparoscopic Era
- Author
-
William Wu, Scott M. Wilhelm, John I. Lew, Raquel E. Montano, Carmen C. Solorzano, Richard A. Prinz, William E. Sumner, Wendy Huang, and Danny Sleeman
- Subjects
Adult ,Male ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Adrenal Gland Neoplasms ,Pheochromocytoma ,Malignancy ,Diagnosis, Differential ,Paraganglioma ,Surgical oncology ,medicine ,Humans ,In patient ,Child ,Laparoscopy ,Aged ,Retrospective Studies ,Aged, 80 and over ,Tumor size ,medicine.diagnostic_test ,business.industry ,Adrenalectomy ,Middle Aged ,medicine.disease ,Magnetic Resonance Imaging ,Surgery ,3-Iodobenzylguanidine ,Oncology ,Female ,Neoplasm Recurrence, Local ,Tomography, X-Ray Computed ,business ,Follow-Up Studies - Abstract
Laparoscopic adrenalectomy (LA) is the preferred surgical approach for pheochromocytomas. We have investigated the changes in diagnosis, management and outcome of pheochromocytomas treated since the widespread advent of LA. Data were collected retrospectively from 96 patients with pheochromocytomas that had been surgically treated at three tertiary referral centers. There were 53 females. Mean age was 47 years (10–81). Tumors were found incidentally in 40% of patients. Of the 96 patients, 12 (13%) had familial syndromes. CT or MRI localized the adrenal lesion in all patients. MIBG scans obtained from 32 patients were concordant with the CT/MRI in 19, were false negative in 9 and misleading in 1, and altered management in only 3 patients. Mean tumor size was 5.6 cm (1.8–17). There were 92 adrenal pheochromocytomas and 9 paragangliomas. Laparoscopy was successful in 67 of 74 (91%) patients, with 20 of 67 (30%) having tumors of 6 cm or greater in size. Conversions to open procedures were performed in patients with 4 left, 2 right pheochromocytomas and 1 paraganglioma. Of the patients, 22 had an open procedure due to suspicion of malignancy or large tumors. Malignancy was observed in 4 of 92 (4.3%) pheochromocytomas and 4 of 9 (44%) paragangliomas. Average follow-up was 22 months (1–122). There were seven recurrences. Postoperative biochemical tests available in 64 patients were normal in 90%. The diagnosis of pheochromocytoma was made incidentally in 40% of patients. MIBG is not necessary for unilateral non-hereditary pheochromocytomas localized by CT/MRI. LA is possible with excellent results in most patients, including for treatment of lesions 6 cm or greater in size with no signs of invasion. Laparoscopy should be used cautiously for paragangliomas because of a high rate of malignancy.
- Published
- 2007
- Full Text
- View/download PDF
3. Dominant-negative transcription factor AP-2 augments SB-2 melanoma tumor growth in vivo
- Author
-
Tiffany L. Calderone, William E. Sumner, Zhi Wang, Suyun Huang, Menashe Bar-Eli, and Jeffrey E. Gershenwald
- Subjects
Male ,Cancer Research ,Lung Neoplasms ,Skin Neoplasms ,Melanoma, Experimental ,Mice, Nude ,Biology ,Transfection ,Mice ,Antigens, Neoplasm ,Cell Movement ,Genes, Reporter ,Gene expression ,Genetics ,medicine ,Animals ,Humans ,Neoplasm Invasiveness ,Northern blot ,Neoplasm Metastasis ,Melanoma ,Molecular Biology ,Transcription factor ,Genes, Dominant ,Mice, Inbred BALB C ,Neovascularization, Pathologic ,Reverse Transcriptase Polymerase Chain Reaction ,Blotting, Northern ,medicine.disease ,Molecular biology ,Culture Media ,DNA-Binding Proteins ,Platelet Endothelial Cell Adhesion Molecule-1 ,Alternative Splicing ,Drug Combinations ,Transcription Factor AP-2 ,Cell culture ,Tumor progression ,Lymphatic Metastasis ,Cutaneous melanoma ,Immunology ,Matrix Metalloproteinase 2 ,Proteoglycans ,Collagen ,Laminin ,Neoplasm Transplantation ,Transcription Factors - Abstract
We have previously demonstrated that the transition of melanoma to the metastatic phenotype is associated with a loss of expression of the transcription factor AP-2. To further investigate the role of AP-2 in the progression of human melanoma, we attempted to inactivate AP-2 in primary cutaneous SB-2 melanoma cells by using a dominant-negative AP-2, or AP-2B, gene. AP-2B is an alternatively spliced AP-2 variant capable of inhibiting AP-2 trans-activator function. Stable transfection of primary cutaneous melanoma SB-2 cells with the dominant-negative AP-2B gene was confirmed by RT--PCR and Northern blot analyses. Electromobility shift assay using nuclear extracts from these cell lines demonstrated decreased functional binding of AP-2B-transfected cells to the AP-2 consensus binding sequence compared with neo-transfected controls. In addition, CAT activity driven by a construct containing the AP-2 consensus binding sequence was downregulated in the AP-2B transfected cells, indicating AP-2 activity was quenched in the transfected cells. Orthotopic (subcutaneous) injection of the dominant-negative (AP-2B)-transfected cell lines into nude mice increased their tumorigenicity compared to control neo-transfected cells. The AP-2B-transfected cells displayed an increase in MMP-2 expression (by Northern blot) and MMP-2 activity (by zymography), which resulted in an increase in invasiveness through Matrigel-coated filters. The AP-2B-transfected tumors also displayed an increase in MMP-2 expression, microvessel density, and angiogenesis in vivo. These results demonstrate that inactivation of AP-2 contributes to the progression of melanoma, at least partially via deregulation of the MMP-2 gene.
- Published
- 2001
- Full Text
- View/download PDF
4. How many lymph nodes are enough during sentinel lymphadenectomy for primary melanoma?
- Author
-
William E. Sumner, Merrick I. Ross, Russell S. Berman, Jeffrey E. Gershenwald, Jeffrey E. Lee, Paul F. Mansfield, and Geoffrey A. Porter
- Subjects
Male ,medicine.medical_specialty ,Skin Neoplasms ,Biopsy ,medicine.medical_treatment ,Sentinel lymph node ,chemistry.chemical_element ,Technetium ,Recurrence ,medicine ,Adjuvant therapy ,Humans ,Radionuclide Imaging ,Melanoma ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Reproducibility of Results ,Middle Aged ,medicine.disease ,Surgery ,Databases as Topic ,chemistry ,Lymphatic Metastasis ,Technetium Tc 99m Sulfur Colloid ,Cutaneous melanoma ,Lymph Node Excision ,Female ,Lymphadenectomy ,Lymph Nodes ,Radiology ,Lymph ,Radiopharmaceuticals ,business ,Follow-Up Studies - Abstract
Background: Sentinel lymph node (SLN) biopsy has been shown to reliably identify nodal metastases and the subsequent need for further surgical and adjuvant therapy in patients with cutaneous melanoma. Although SLN identification rates have improved with the addition of radioactive colloid to the blue dye technique, it remains unclear how many lymph nodes should be removed to accurately determine the histologic status of the nodal basin. The objective of this study was to determine the optimal extent of SLN biopsy in these patients. Methods: The records of 633 consecutive patients with melanoma (765 nodal basins) whose primary treatment included SLN biopsy with the use of a combination of blue dye and technetium Tc 99 labeled sulfur colloid were reviewed. SLN biopsy consisted of the removal of all of the blue-stained nodes and all nodes with radiotracer uptake activity of at least twice background. Results: SLN biopsy was successful in 765 of 772 basins (99%). A mean of 1.9 SLNs (median, 2 SLNs) per basin were excised. At least 3 SLNs were removed in 176 basins (23%). The overall histologic status of a basin was always established by the first or second SLN harvested (ie, in no patient was the third or subsequent SLN positive when 1 of the first 2 was not). Of the 124 basins containing lymphatic metastases, the SLN that contained the maximal radiotracer uptake (hottest) and/or stained blue was pathologically positive in 118 basins (95%). In only 6 of the 124 positive basins (5%) was the sole evidence of occult nodal metastases identified in an SLN that was neither blue-stained nor the hottest. All but 1 of these SLNs had counts that were at least 66% of the hottest node in the basin. Conclusions: With a combined modality approach to SLN biopsy, removal of more than 2 SLNs did not provide information that upstaged any patient with primary melanoma. Removal of additional nonblue SLN(s) that contained radioactive counts of at least twice background but lower than two thirds of the SLNs with maximal radiotracer uptake affected patient management in less than 0.2% of all cases. These findings may be helpful in minimizing the extent of surgery and perhaps in reducing the costs and resource use associated with operating room time and pathologic examination. (Surgery 2000;128:306-11.)
- Published
- 2000
- Full Text
- View/download PDF
5. 7201 carcinoids: increasing incidence overall and disproportionate mortality in the elderly
- Author
-
William E. Sumner, Nicole Hodgson, Leonidas G. Koniaris, David J. Lee, Sarah E. Snell, Eduardo A. Perez, Juan C. Gutierrez, Dido Franceschi, and Alan S. Livingstone
- Subjects
Male ,medicine.medical_specialty ,Carcinoid tumors ,Carcinoid Tumor ,Risk Factors ,Internal medicine ,Epidemiology ,medicine ,Humans ,Registries ,Intensive care medicine ,neoplasms ,Survival rate ,Aged ,Gastrointestinal Neoplasms ,business.industry ,Incidence (epidemiology) ,Incidence ,Respiratory tract neoplasm ,Vascular surgery ,Middle Aged ,medicine.disease ,digestive system diseases ,Respiratory Tract Neoplasms ,Cancer registry ,Survival Rate ,Florida ,Surgery ,Female ,business ,Abdominal surgery - Abstract
The aim of the study was to determine outcomes for respiratory and gastrointestinal carcinoid tumors utilizing a large cancer registry.Cases of respiratory and gastrointestinal carcinoid from the Florida Cancer Data System (FCDS) from 1981 to 2001 were reviewed. Descriptive statistics, age-adjusted tumor incidence, and survival rates were determined.A total of 7201 cases of malignant carcinoid were identified. Pulmonary and gastrointestinal carcinoid tumors comprised 82% of all carcinoids encountered. The mean age was 64.4 +/- 0.15 years. Stratified by location, there were 3000 (51.4%) foregut carcinoids (including those found in the respiratory tree-2325 in the lung), 2130 (36.5%) midgut carcinoids, and 712 (12.2%) hindgut carcinoids. Second, distinct malignancies were observed in 23% of cases. The total age-adjusted incidence rate has increased from 0.62 per 100,000 in 1980 to 5.17 per 100,000 in 2000. Overall median survival was 21.97 months. The median survival was 19.0 months for foregut carcinoids (excluding those arising in the respiratory tract); 33.9 months for midgut tumors; and 22.7 months for hindgut carcinoids. There was a statistically significant better survival for those with midgut tumors than for those in the other groups (P0.001). Age60 years, white race, and female sex were all associated with better survival (P0.01).The incidence of pulmonary and gastrointestinal carcinoids has dramatically increased since 1981. Tumor location and ageor = 60 years are the strongest predictors of mortality.
- Published
- 2007
6. Results of 23,810 cases of ductal carcinoma-in-situ
- Author
-
Jodeen Powell, William E. Sumner, Eli Avisar, Sarah E. Snell, Leonidas G. Koniaris, Dido Franceschi, Frederick L. Moffat, Alan S. Livingstone, and Seth A. Spector
- Subjects
Oncology ,medicine.medical_specialty ,Databases, Factual ,medicine.medical_treatment ,Sentinel lymph node ,Breast Neoplasms ,Modified Radical Mastectomy ,Breast cancer ,Age Distribution ,Internal medicine ,medicine ,Humans ,Mass Screening ,Prospective Studies ,Registries ,Practice Patterns, Physicians' ,skin and connective tissue diseases ,Survival rate ,Mass screening ,Mastectomy ,Aged ,business.industry ,Incidence ,Ductal carcinoma ,Middle Aged ,medicine.disease ,Cancer registry ,Survival Rate ,Carcinoma, Intraductal, Noninfiltrating ,Treatment Outcome ,Florida ,Surgery ,Female ,Radiology ,Neoplasm Recurrence, Local ,business ,Mammography - Abstract
Screening mammography has increased the number of patients diagnosed with ductal carcinoma-in-situ (DCIS) in the past 20 years. The Florida Cancer Data System is the largest single source incident cancer registry in the United States. We analyzed this registry to determine the changing incidence and treatment patterns for DCIS. Patients with DCIS from 1981 to 2001 were identified. Age-adjusted rate, descriptive statistics, and incidence of future DCIS and invasive breast cancer were calculated. A total of 23,810 DCIS patients were identified. The age-adjusted rate of DCIS has risen from 2.4 to 27.7 per 100,000 women between 1981 and 2001. Median age was 64 years; 85% of patients were white, 6.6% African American, and 7.5% Hispanic. Median tumor size was .9 cm. Forty-seven percent of patients had breast-conserving therapy (BCT). Half of the 53% of patients undergoing mastectomy underwent a modified radical mastectomy. Eight percent received no surgical treatment. Sentinel lymph node biopsy was used in 2.7% of patients who underwent a mastectomy. After BCT, 37.5% received adjuvant radiotherapy, and only 13% were treated with hormonal therapy. The incidence of DCIS has risen dramatically with the advent of screening mammography. Increasing numbers of these patients are treated with BCT, although a large proportion are still treated with mastectomy, in some cases combined with axillary dissection. Sentinel lymph node biopsy and tamoxifen are important components of therapy, the use of which is slowly increasing in the treatment of DCIS.
- Published
- 2005
7. Implications of lymphatic drainage to unusual sentinel lymph node sites in patients with primary cutaneous melanoma
- Author
-
Jeffrey E. Gershenwald, Jeffrey E. Lee, Merrick I. Ross, Victor G. Prieto, Christopher W. Schacherer, Paul F. Mansfield, and William E. Sumner
- Subjects
Male ,Cancer Research ,medicine.medical_specialty ,Skin Neoplasms ,Sentinel lymph node ,Metastasis ,medicine ,Humans ,Radionuclide Imaging ,Lymph node ,Melanoma ,Retrospective Studies ,business.industry ,Sentinel Lymph Node Biopsy ,Middle Aged ,medicine.disease ,Surgery ,Lymphatic system ,medicine.anatomical_structure ,Oncology ,Lymphatic Metastasis ,Cutaneous melanoma ,Lymph Node Excision ,Female ,Lymph ,Lymph Nodes ,Neoplasm Recurrence, Local ,business ,Gamma probe - Abstract
BACKGROUND Sentinel lymphadenectomy reliably identifies the first site(s) of regional lymphatic drainage and, therefore, the most likely lymph nodes to contain occult metastasis in patients with primary cutaneous melanoma. Although in most patients lymphatic drainage from the primary melanoma first reaches a standard lymph node basin, a sentinel lymph node (SLN) may be identified in an unusual location. The objective of this study was to determine the frequency and significance of unusual sentinel lymph node drainage patterns in a large cohort of patients with primary melanoma. METHODS The records of 1145 consecutive primary melanoma patients who underwent SLN biopsy were reviewed. Preoperative lymphoscintigraphy was performed in all patients with truncal melanoma and in many patients with distal extremity lesions. Unusual lymph node sites were defined as epitrochlear, popliteal, or ectopic/interval (in-transit or any other nonstandard lymph node-bearing area). RESULTS At least one SLN was harvested in 1117 patients (98%). SLN biopsy of an unusual lymph node site was attempted in 59 patients (5%). Successful intraoperative localization and biopsy was performed in 54 (92%) of 59 patients for a total of 56 unusual sites. Of these, 7 (13%) were popliteal, 8 (14%) were epitrochlear, and 41 (73%) were ectopic/interval. Preoperative lymphoscintigraphy was performed in 41 of these 54 patients and correctly identified unusual SLN locations in 12 (29%); the majority of unusual SLNs were identified only with the assistance of the intraoperative gamma probe. In four patients (7%), the unusual lymph node site was the only site from which SLNs were harvested. In the remaining 50 patients (93%), biopsies were performed on SLNs from both unusual sites and from a standard lymph node basin. Among the 54 patients who underwent a SLN biopsy of an unusual nodal site, 7 (13%) had lymph node metastases in that location. In four of the seven patients, the only positive SLN was from the unusual site. CONCLUSIONS Sentinel lymphatic drainage patterns include lymph node-bearing areas that may be outside established standard lymph node basins and may represent the only site of regional lymph node metastases. Although preoperative lymphoscintigraphy may assist in the identification of unusual SLN drainage patterns, intraoperative use of the gamma probe is recommended to identify accurately and completely all sites of regional lymph node drainage. Cancer 2002;95:354–60. © 2002 American Cancer Society. DOI 10.1002/cncr.10664
- Published
- 2002
8. The Clinical Utility of Blood Pressure Load in Hypertension
- Author
-
William E. Sumner and Prince K. Zachariah
- Subjects
medicine.medical_specialty ,Ambulatory blood pressure ,business.industry ,Diastole ,Prehypertension ,Surgery ,Left ventricular mass ,Blood pressure ,Internal medicine ,Ambulatory ,Internal Medicine ,medicine ,Cardiology ,business ,Normal range - Abstract
The variability of blood pressure and its consequences suggests that ambulatory blood pressure (ABP) data should be analyzed not only by mean ambulatory blood pressure (MABP), but also by looking at blood pressure load (BPL, the percentage of measurements >140/90 mm Hg while awake and >120/80 while asleep). In one study, several hypertensive patients whose ambulatory diastolic blood pressure was
- Published
- 1993
- Full Text
- View/download PDF
9. Disparities in breast cancer among 236,101 patients in Florida
- Author
-
D. Fraceschi, Fredrick Moffat, William E. Sumner, C. P. Bowen-Wells, and Eli Avisar
- Subjects
Patterns of care ,Cancer Research ,medicine.medical_specialty ,Breast cancer ,Oncology ,business.industry ,Family medicine ,Health care ,Medicine ,Racial differences ,business ,medicine.disease - Abstract
10790 Background: For minorities with breast cancer, access to healthcare has been an issue. A number of studies have reported racial differences in the pattern of care for women with breast cancer. A recent publication in New England Journal of Medicine indicated that the trend has narrowed between whites and black. In our institution we have noted a persistent higher rate of advanced breast cancer in minority patients. Studies have also showed that minority patients present with more advance disease and are more likely to have receptor negative tumors. Minority patients have higher mortality than whites. Younger minorities appear to do worse than older minorities as a result of lack of insurance. Minorities are less likely to be part of clinical trials. Method: We reviewed the Florida Cancer Data System (FCDS), a large cancer registry. 236,101 cases of breast cancer patients were identified between 1981–1992. Comparisons were made by Chi Square test. Results: Ninety one percentages (91%) of the patients were Whites, 6.8% were Blacks and 2.2% represented all others. Most patients presented with localized disease: Whites had 49%; Blacks had 36% and the other minority 36.3%. Blacks had a significantly higher incidence of regional disease (see figure), and had the highest percentage of metastatic disease at presentation (p < 0.01). Conclusion: Disparities in breast cancer care still clearly exist amongst ethnic group in Florida. The disparities are resulting in higher mortality among non-whites as compared to whites. Better results could be achieved with sets at prevention, education about early detection, screening and access. No significant financial relationships to disclose.
- Published
- 2006
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.