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1.
Can J Urol ; 26(1): 9683-9685, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30797253

RESUMO

Primary spindle cell sarcoma of the prostate is exceedingly rare and accounts for 0.1% of all prostatic cancers. Typically, the disease course is rapid and portends a short and dismal prognosis. We report a case of prostatic stromal sarcoma (PSS) which likely lay dormant for several years after a transurethral resection of the prostate. This case is unique in that this cancer did not display the rapid growth of PSS in prior reports. Our patient received a cystoprostatectomy and an ileal conduit. This article describes a rare presentation of a rare tumor and a brief review of the literature.


Assuntos
Neoplasias da Próstata , Sarcoma , Humanos , Masculino , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/cirurgia , Sarcoma/diagnóstico , Sarcoma/cirurgia
2.
J Urol ; 199(1): 274-279, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28728991

RESUMO

PURPOSE: Malone antegrade continence enema has been a successful and widely used procedure for achieving fecal continence in children. We present data on the previously uninvestigated issue of patient and caregiver regret following surgery for intractable constipation and fecal incontinence. MATERIALS AND METHODS: We reviewed all patients undergoing antegrade continence enema or cecostomy creation at a single institution between 2006 and 2016. Patients and caregivers were assessed for decisional regret using the Decisional Regret Scale. Results were correlated with demographics, surgical outcomes and complications. RESULTS: A total of 81 responses (49 caregivers and 32 patients) were obtained. Mean followup was 49 months. Decisional regret was noted in 43 subjects (53%), including mild regret in 38 (47%) and moderate to severe regret in 5 (6%). No statistical difference in regret was noted based on gender, complications or performance of concomitant procedures. On regression analysis incontinence was strongly associated with decisional regret (OR 4.4, 95% CI 1.1-18.1, p <0.001) and regret increased as age at surgery increased, particularly when patients were operated on at age 13 to 15 years (OR 2.6, 95% CI 1.0-6.4 for age 13 years; OR 2.9, 95% CI 1.1-7.8 for age 14 years; OR 3.1, 95% CI 1.1-8.8 for age 15 years). CONCLUSIONS: This is the first known study describing decisional regret following surgery for fecal incontinence. Surgical factors aimed at achieving continence may be effective in decreasing postoperative regret. The finding of increased regret in teenage patients compared to younger children should be shared with families since it may impact the age at which surgery is pursued.


Assuntos
Cuidadores/psicologia , Cecostomia/efeitos adversos , Emoções , Incontinência Fecal/cirurgia , Participação do Paciente/psicologia , Complicações Pós-Operatórias/epidemiologia , Adolescente , Fatores Etários , Apêndice/cirurgia , Cateterismo/efeitos adversos , Cateterismo/métodos , Cecostomia/métodos , Criança , Tomada de Decisão Clínica/métodos , Constipação Intestinal/etiologia , Constipação Intestinal/cirurgia , Incontinência Fecal/etiologia , Feminino , Seguimentos , Humanos , Laparoscopia/efeitos adversos , Laparoscopia/métodos , Masculino , Intestino Neurogênico/complicações , Intestino Neurogênico/cirurgia , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Resultado do Tratamento
3.
Neurourol Urodyn ; 37(5): 1757-1763, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29441610

RESUMO

OBJECTIVE: To describe and compare differences in perception of independence, urinary continence, and quality of life in an adult spina bifida (SB) population. METHODS: We collected data on adult neurogenic bladder patients which included demographics, relevant procedures, and quality of life (QoL) questionnaires. QoL and functional outcomes were assessed using spinal cord independence measure (SCIM) and SF-8 health questionnaire. International consultation of incontinence questionnaire (ICIQ) was used to assess incontinence. Comparisons were drawn between patients who underwent surgical reconstruction and those who did not. Student t-tests were used for comparisons and a P-value <0.05 was considered statistically significant. RESULTS: Fifty-four patients with SB were included. A total of 43% underwent bladder augmentation (BA) and 30% underwent antegrade continence enema (ACE). Patients with BA scored 49 ± 25 on the SCIM survey while those without had higher scores of 68 ± 19 with a P-value of 0.016. This difference remained evident when patients with ACE were excluded. When comparing ICIQ and SF-8, no statistically significant differences were found between those who underwent surgical procedures and those who did not. CONCLUSIONS: Assessing QoL in congenital NGB patients is a complex task. In our cohort, patients who underwent BA and ACE were shown to have decreased SCIM scores. SCIM scores for BA patients were significantly higher in patients who did not receive a BA independent of ACE status. SF-8 and ICIQ scores did not show any statistically significant difference in quality of life survey scores in those who underwent procedures versus those who did not.


Assuntos
Qualidade de Vida/psicologia , Disrafismo Espinal/psicologia , Bexiga Urinaria Neurogênica/psicologia , Incontinência Urinária/psicologia , Adulto , Estudos de Coortes , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Disrafismo Espinal/complicações , Inquéritos e Questionários , Bexiga Urinaria Neurogênica/etiologia , Incontinência Urinária/etiologia , Adulto Jovem
4.
Neurourol Urodyn ; 36(4): 973-978, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-27276694

RESUMO

BACKGROUND: Adolescents with neurogenic bladder are a vulnerable population that severely lacks consistent transitional care from pediatric to adult urology settings. AIMS: Our practice determined that 100 patients with spina bifida and other neurogenic bladder conditions were not appropriately transferred to the adult setting once reaching adulthood. METHODS: We initiated a transitional program to establish a dedicated and formal process for adolescent patients to transition to adult urology. The REACH clinic implements a formalized staging framework to facilitate migration of adolescents and young adults to the adult health setting. A social worker was incorporated to act as a patient advocate, behavioral health consultant, and resource specialist. RESULTS: To date 45 patients have been enrolled in the transition program. We have identified and categorized according to the appropriate stage. The REACH clinic has appropriately outlined the goals and mission of the program and resources utilized are financially practical and feasible by conducting a monthly combined clinic. The program has been instrumental in improving tracking and monitoring of these patients through their transition period. CONCLUSION: Through the efforts of the pediatric and adult urology teams, the REACH program is a dedicated framework that provides structure for transition of the adolescent patient. The addition of a social worker has resulted in enriched rapport and will likely result in improved compliance. This program allows for surveillance and evaluation of patient outcome indicators in this patient population. We believe that early introduction and frequent encounters with the adult urologic team is crucial to successful transitions. Neurourol. Urodynam. 36:973-978, 2017. © 2016 Wiley Periodicals, Inc.


Assuntos
Cuidado Transicional/organização & administração , Cuidado Transicional/normas , Bexiga Urinaria Neurogênica/terapia , Adolescente , Algoritmos , Criança , Pré-Escolar , Humanos , Lactente , Recém-Nascido , Avaliação de Programas e Projetos de Saúde , Inquéritos e Questionários , Bexiga Urinaria Neurogênica/etiologia , Adulto Jovem
5.
Urol Int ; 95(2): 240-2, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25871265

RESUMO

Endodermal sinus (yolk sac) tumors (ESTs) are rare neoplasms that most commonly arise in the ovaries or testis. Only six cases of prostatic ESTs have been reported in the literature. We report a case of prostatic EST, the first case in which the patient had a history of previous testis cancer. Treatment included cisplatin-based chemotherapy and radical prostatectomy. Previous cases of primary ESTs and use of cisplatin-based therapy as well as metastatic tumors to the prostate are discussed.


Assuntos
Tumor do Seio Endodérmico/diagnóstico , Neoplasias da Próstata/diagnóstico , Neoplasias Testiculares/patologia , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bleomicina/uso terapêutico , Cisplatino/uso terapêutico , Intervalo Livre de Doença , Tumor do Seio Endodérmico/tratamento farmacológico , Tumor do Seio Endodérmico/secundário , Tumor do Seio Endodérmico/cirurgia , Etoposídeo/uso terapêutico , Humanos , Masculino , Metástase Neoplásica , Prostatectomia , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/secundário , Neoplasias da Próstata/cirurgia , Recidiva , Procedimentos Cirúrgicos Robóticos , Resultado do Tratamento , Vincristina/uso terapêutico
6.
Urol Nurs ; 35(5): 231-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26630779

RESUMO

A systematic review of the literature was performed to identify barriers, themes, or additional insight specific to the transitional care processes from a pediatric to an adult health care setting for patients with spina bifida.


Assuntos
Doença Crônica/terapia , Transição para Assistência do Adulto , Adolescente , Criança , Humanos , Adulto Jovem
7.
Curr Urol Rep ; 15(6): 408, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24740271

RESUMO

Urolithiasis is a common condition in patients with spinal cord injury (SCI). Surgical management of stones in this population is more challenging and associated with lower clearance rates than the general population. The rate of complications - specifically infectious complications - is also high due to the chronic bacterial colonization. Shock wave lithotripsy (SWL) has a low clearance rate of 44-73 %. Percutaneous nephrolithotripsy is indicated for larger nephrolithiasis, but multiple procedures may be required to clear the stones. Ureteroscopy has been associated with low success rates because of difficulty in obtaining ureteral access. Historically, bladder stones were managed with open surgery or SWL. Recently, good results have been reported with the combination of endoscopic and laparoscopic techniques. Surgical management of urolithiasis in patients with SCI should be performed in high-volume centers in light of the technical challenges and higher rate of perioperative complications.


Assuntos
Nefrostomia Percutânea/métodos , Traumatismos da Medula Espinal/complicações , Ureteroscopia/métodos , Infecções Urinárias/complicações , Urolitíase/cirurgia , Humanos , Litotripsia/métodos , Cálculos da Bexiga Urinária/cirurgia , Urolitíase/complicações
8.
J Okla State Med Assoc ; 106(11): 435-8, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24596985

RESUMO

Uropathogenic E. coli (UPEC) strains are described as extraintestinal pathogenic E. coli with preference for the urinary tract. Bottone et al2 recently described the first documentation of a hypermucoviscous phenotype of a UPEC strain that displays a "stringing" phenomenon analogous to those produced by Klebsiella pneumonia strains known to invade the liver. The occurrence of this hypermucoviscous phenotype of UPEC strains causing urinary tract infection has not been well established. Following, we present a case report of two separate renal isolates from a patient with recurrent renal abscesses yielding the aforementioned hypermucoviscous phenotype of UPEC strains.


Assuntos
Abscesso/complicações , Infecções por Escherichia coli/complicações , Nefropatias/complicações , Infecções Urinárias/complicações , Escherichia coli Uropatogênica/isolamento & purificação , Abscesso/diagnóstico por imagem , Abscesso/tratamento farmacológico , Antibacterianos/uso terapêutico , Ceftriaxona/uso terapêutico , Ciprofloxacina/uso terapêutico , Drenagem/métodos , Infecções por Escherichia coli/tratamento farmacológico , Feminino , Humanos , Nefropatias/diagnóstico por imagem , Nefropatias/tratamento farmacológico , Pessoa de Meia-Idade , Fenótipo , Tomografia Computadorizada por Raios X/métodos , Sistema Urinário/microbiologia , Infecções Urinárias/tratamento farmacológico
9.
Urology ; 180: 285-290, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37451365

RESUMO

OBJECTIVE: To evaluate short and long-term adherence and nonadherence patterns within a staged transition clinic developed in 2014 to assist congenital neurogenic bladder patients transfer from pediatric to adult urologic care. METHODS: We performed a retrospective chart review of all congenital neurogenic bladder patients who had been prospectively identified in the transition clinic and adult urology clinic since 2014. Demographic and clinical data were collected and analyzed to determine patient adherence with transfer of care, to study long-term compliance with follow-up, and to identify factors that positively and negatively influenced transition clinic success. RESULTS: 157 patients participated in the transition clinic. 76/79 (96.2%) patients ready to transition successfully transferred to adult care. 55/76 (72.4%) remain active. Greater number of visits between transition stages was significant among patients who maintained active follow-up after transition (P = .006). 171 patients initiated care in our adult urology clinic without transition. Irrespective of nontransitioned patients longer follow-up, formally transitioned adult patients had higher yearly participation rates, with 55 (72.4%) transitioned patients compared to 63 (36.8%) nontransitioned patients remaining active (P < .001). CONCLUSION: Congenital neurogenic bladder patients who participated in a transition clinic were successful transferring from pediatric to adult care, with improved clinic adherence in adulthood, compared to patients who initiated adult care without structured transition. Early introduction to adult providers and increased number of visits positively impacted adherence upon transition to adult care. Noncompliance with pediatric provider visits negatively impacted transition adherence.

10.
Transl Androl Urol ; 12(9): 1408-1415, 2023 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-37814693

RESUMO

Background: Decisional regret (DR) has previously been applied to other urologic issues (hypospadias, prostate cancer). The present study seeks to evaluate certain patient factors that directly correlate to high DR scores in anti-incontinence procedures. Methods: Medical records for 119 patients undergoing anti-incontinence procedures between 2009 and 2020 were retrospectively reviewed. Forty-one patients were accessible for telephone follow-up and provided a Decisional Regret Scale (DRS) questionnaire. If patients had both a sling and an artificial urinary sphincter (AUS) placed, questionnaires were administered for each. DRS score was quantified in accordance with prior literature, with scores ranging 0-100. We subdivided patients based on demographics and surgical data, correlating this with DRS score. Results: In 41 patients, 46 procedures (13 slings, 33 AUS) were performed. Thirty-nine (95.1%) men underwent robotic-assisted laparoscopic prostatectomy, and 11 (26.8%) men reported prior pelvic radiation. Post-procedural continence, irrespective of procedure, yielded an average 2±1.56 pads per day (PPD). Mean DRS score across the cohort was 29.78. DRS score was subdivided into mild, moderate, and severe, with majority noting "none to mild" regret (63%), 15.2% reporting moderate and 21.7% severe. Predictors of higher regret included history of radiation (P=0.056), choice of anti-incontinence procedure (P=0.011), and need for surgical revision (P=0.00042). DR was unrelated to race, complete continence, and time to follow-up. Conclusions: DRS has recently been applied to anti-incontinence procedures for male stress incontinence; our study highlights novel findings not previously assessed. Majority of men had minimal regret with a subset that had significant regret-history of radiation, multiple revisions/explant, and those who elected for sling upfront. These results highlight the importance of patient selection and pre-operative counselling.

11.
J Pediatr Rehabil Med ; 16(4): 605-619, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38073338

RESUMO

PURPOSE: This study aimed to analyze organ system-based causes and non-organ system-based mechanisms of death (COD, MOD) in people with myelomeningocele (MMC), comparing urological to other COD. METHODS: A retrospective review was performed of 16 institutions in Canada/United States of non-random convenience sample of people with MMC (born > = 1972) using non-parametric statistics. RESULTS: Of 293 deaths (89% shunted hydrocephalus), 12% occurred in infancy, 35% in childhood, and 53% in adulthood (documented COD: 74%). For 261 shunted individuals, leading COD were neurological (21%) and pulmonary (17%), and leading MOD were infections (34%, including shunt infections: 4%) and non-infectious shunt malfunctions (14%). For 32 unshunted individuals, leading COD were pulmonary (34%) and cardiovascular (13%), and leading MOD were infections (38%) and non-infectious pulmonary (16%). COD and MOD varied by shunt status and age (p < = 0.04), not ambulation or birthyear (p > = 0.16). Urology-related deaths (urosepsis, renal failure, hematuria, bladder perforation/cancer: 10%) were more likely in females (p = 0.01), independent of age, shunt, or ambulatory status (p > = 0.40). COD/MOD were independent of bladder augmentation (p = >0.11). Unexplained deaths while asleep (4%) were independent of age, shunt status, and epilepsy (p >= 0.47). CONCLUSION: COD varied by shunt status. Leading MOD were infectious. Urology-related deaths (10%) were independent of shunt status; 26% of COD were unknown. Life-long multidisciplinary care and accurate mortality documentation are needed.


Assuntos
Hidrocefalia , Meningomielocele , Feminino , Humanos , Meningomielocele/complicações , Meningomielocele/cirurgia , Estudos Retrospectivos , Causas de Morte , Derivação Ventriculoperitoneal/efeitos adversos , Hidrocefalia/cirurgia
12.
J Okla State Med Assoc ; 104(4): 125-7, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21678757

RESUMO

Ewing sarcoma, also referred to as primitive neuroectodermal tumor (PNET), is a malignancy, histologically characterized by Homer-Wright rosettes and small round cells, that presents most commonly in bone or soft tissue in the pediatric and adolescent populations. We report the case of a patient that presents with intermittent gross hematuria, abdominal mass and elevated blood pressure. After surgical excision of the renal mass, the rare finding of a primary renal Ewing's sarcoma was discovered. After surgery the patient was additionally treated with chemotherapy. After presenting this case, we briefly discuss the unique case of isolated renal Ewing's sarcoma, including incidence and treatment.


Assuntos
Neoplasias Renais/diagnóstico , Sarcoma de Ewing/diagnóstico , Adulto , Humanos , Neoplasias Renais/cirurgia , Masculino , Sarcoma de Ewing/cirurgia
13.
J Biomed Opt ; 14(3): 030506, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19566288

RESUMO

In vivo trans-rectal near-infrared (NIR) optical tomography was performed concurrently with, albeit reconstructed without spatial a prior of, trans-rectal ultrasound (US) on transmissible venereal tumor (TVT) developed as a model in the canine pelvic canal. Studies were taken longitudinally at prior to, 14 days after, and 35 days after the TVT injection. As the tumor grew, the nodules became increasingly hyperabsorptive and moderately hyperscattering on NIR. The regions of strong NIR contrast, especially on absorption images, correlated well with those of US hypoechoic masses indicative of tumors. Combining the information of trans-rectal NIR and US detected the tumor more accurately than did the US alone at 14 days postinjection.


Assuntos
Doenças do Cão/diagnóstico por imagem , Tomografia Óptica/métodos , Ultrassom Focalizado Transretal de Alta Intensidade/métodos , Tumores Venéreos Veterinários/diagnóstico por imagem , Animais , Linhagem Celular Tumoral , Modelos Animais de Doenças , Cães , Raios Infravermelhos , Masculino , Transplante de Neoplasias , Neoplasias Pélvicas/diagnóstico por imagem , Pelve/diagnóstico por imagem , Próstata/diagnóstico por imagem , Ultrassonografia
14.
J Urol ; 179(2): 764-9, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18082196

RESUMO

PURPOSE: Expression of the proteoglycan core proteins biglycan, decorin, perlecan and syndecan-1, and differentiation related markers of keratins 18 and 20 were examined to determine the origins of the loss of the glycosaminoglycan layer and investigate more fully the altered differentiation of the urothelium in interstitial cystitis. MATERIALS AND METHODS: Formalin fixed biopsies from 27 patients with interstitial cystitis and 5 controls were immunohistochemically labeled for the described proteins and scored using a modification of previous scoring for other markers. Inflammation was scored from hematoxylin and eosin stained slides. By combining previous with new data, cluster analysis showed the relationships among the markers and samples. RESULTS: Interstitial cystitis specimens clustered into 4 groups, ranging from most biomarkers abnormal to most biomarkers normal, but all clustered separately from normal controls. One group of interstitial cystitis specimens mainly showed aberrant expression of E-cadherin, which might represent an early abnormality. The biomarkers fell into 2 major groupings. One group consisted of chondroitin sulfate, perlecan, biglycan, decorin and the tight junction protein ZO-1. A second cluster consisted of uroplakin, the epithelial marker keratin 18 and 20, and the morphology of the layer. E-cadherin and syndecan-1 showed little relation to the other 2 clusters or to each other. Inflammation correlated moderately with syndecan-1 but to no other marker. CONCLUSIONS: Findings strongly suggest abnormal differentiation in the interstitial cystitis urothelium with a loss of barrier function markers and altered differentiation markers being independent and occurring independently of inflammation. Loss of the glycosaminoglycan layer was associated with a loss of biglycan and perlecan on the luminal layer.


Assuntos
Cistite Intersticial/metabolismo , Queratinas Tipo I/metabolismo , Proteoglicanas/metabolismo , Urotélio/metabolismo , Adulto , Idoso , Biomarcadores/metabolismo , Estudos de Casos e Controles , Análise por Conglomerados , Cistite Intersticial/patologia , Feminino , Glicosaminoglicanos/metabolismo , Humanos , Masculino , Proteínas de Membrana/metabolismo , Pessoa de Meia-Idade , Fosfoproteínas/metabolismo , Urotélio/patologia , Proteína da Zônula de Oclusão-1
15.
Opt Express ; 16(22): 17505-20, 2008 Oct 27.
Artigo em Inglês | MEDLINE | ID: mdl-18958031

RESUMO

We demonstrate trans-rectal optical tomography of the prostate using an endo-rectal near-infrared (NIR) applicator integrated with a transrectal ultrasound (TRUS) probe. The endo-rectal NIR applicator incorporated a design presented in our previously reported work. A continuous-wave NIR optical tomography system is combined with a commercial US scanner to form the dual-modality imager. Sagittal transrectal imaging is performed concurrently by endo-rectal NIR and TRUS. The TRUS ensures accurate positioning of the NIR applicator as well as guides NIR image reconstruction using the spatial prior of the target. The use of a condom, which is standard for TRUS, is found to have minimal effect on trans-rectal NIR imaging. Tests on avian tissues validates that NIR imaging can recover the absorption contrast of a target, and its accuracy is improved when the TRUS spatial prior is incorporated. Trans-rectal NIR/US imaging of a healthy canine prostate in situ is reported.


Assuntos
Raios Infravermelhos , Próstata/diagnóstico por imagem , Reto/diagnóstico por imagem , Tomografia Óptica/instrumentação , Animais , Calibragem , Galinhas , Cães , Masculino , Imagens de Fantasmas , Ultrassonografia
16.
Urology ; 102: 79-84, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27693572

RESUMO

OBJECTIVE: To describe clinical management of Fournier's gangrene and to characterize predictive factors associated with inpatient mortality and extended hospital stay. MATERIALS AND METHODS: The National Inpatient Sample was queried from 2004 to 2012 based on the International Classification of Diseases, Ninth Revision, Clinical Modification procedural and diagnosis codes. Patients admitted for Fournier's gangrene who underwent debridement were selected. Multivariate logistic regression analysis was performed to identify predictors of inpatient mortality and extended hospital stay. RESULTS: A total of 9249 patients were identified for a weighted estimate of 43,146 cases. Inpatient mortality was 4.7%. The median length of stay was 9 days (interquartile range 5-17 days). The most common procedure in addition to debridement was a complex closure (8.82%), followed by suprapubic tube placement (5.70%) and fecal diversion (4.68%). Increasing age, yearly hospital volume >10 cases, and Medicaid insurance status were associated with increased risk of mortality. Increasing age, teaching hospital status, increasing number of comorbidities, and Medicaid as a payor were predictive of increased hospital stay. Suprapubic tube placement (odds ratio [OR] 2.8 [95% confidence interval {CI} 1.92-4.07], P ≤ .001), fecal diversion (OR 11.1 [95% CI 6.20-19.7], P ≤ .001), and complex wound closure (OR 4.89 [95% CI 3.97-6.89], P ≤ .001) were also predictive of increased length of stay. CONCLUSION: Identifiable patient and hospital characteristics are predictive of both mortality and length of stay in the management of Fournier's gangrene. Overall inpatient mortality appears lower than what has been reported in the majority of prior reports. The strongest predictor for increased length of stay is the need for complex wound closure, and urinary or fecal diversion.


Assuntos
Procedimentos Cirúrgicos Ambulatórios/tendências , Gangrena de Fournier/mortalidade , Gangrena de Fournier/cirurgia , Tempo de Internação , Adulto , Idoso , Idoso de 80 Anos ou mais , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos
17.
Mol Cancer ; 4(1): 30, 2005 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-16086835

RESUMO

BACKGROUND: Tumor metastasis and changes in host immunosurveillance are important components in cancer development. Tumor cell invasion into the bloodstream is an essential step for systemic metastasis. Currently, the detection of tumor cells in the circulation is mainly dependent upon the utilization of known epithelial cell markers. However, expression of these molecules is not limited to cancer patients; healthy people also have a small number of epithelial cells in their circulation. Utilizing these markers to detect circulating tumor cells (CTCs) cannot adequately explain the mechanisms of tumor cell survival or their development of metastatic potential in peripheral blood. The immune system can also evolve along with the cancer, actually promoting or selecting the outgrowth of tumor variants. Unfortunately, both metastasis and immunosurveillance remain mysterious and are debatable because we have yet to define the molecules that participate in these processes. We are interested in identifying the existence of expressed genes, or mRNA species, that are specifically associated with circulating cells of cancer-bearing patients using prostate cancer (PCa) as a model. RESULTS: We established two comprehensive subtracted cDNA libraries using a molecular technique called suppression subtractive hybridization. This technique selectively amplifies transcripts that are specifically expressed in circulating cells of either PCa patients or healthy men. Following sequencing reaction, we showed that 17 out of 23 (73.9%) sequenced clones did not match any mRNAs in the GenBank database. This result suggests that genes associated with alterations in circulating cells of cancer-bearing patients are largely unknown. Semi-quantitative RT-PCR confirmed that two genes are up-regulated in circulating cells of PCa patients, whereas another two genes are down-regulated in the same patients. CONCLUSION: The comprehensive gene expression analysis is capable of identifying differentially expressed genes in circulating cells of healthy men and PCa patients. We did not attempt to enrich specific cell types in this study because phenotypes of CTCs and subsets of leukocytes participating in immunosurveillance remain largely unknown. Continuous studies of these differentially expressed genes will eventually lead us to understand the mechanisms involved in tumor metastasis and immune modulation during cancer development.


Assuntos
Células Neoplásicas Circulantes/metabolismo , Células Neoplásicas Circulantes/patologia , Neoplasias da Próstata/genética , Neoplasias da Próstata/patologia , Biomarcadores Tumorais/sangue , DNA Complementar/genética , Regulação Neoplásica da Expressão Gênica , Biblioteca Gênica , Saúde , Humanos , Hibridização Genética , Masculino , RNA Mensageiro/genética , Transcrição Gênica/genética
18.
Urol Case Rep ; 2(3): 83-4, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-26955553

RESUMO

We present a patient with extensive keratinizing squamous metaplasia that progressed to squamous papilloma over the course of follow-up. To our knowledge, this is the first published case of keratinizing squamous metaplasia with melanotic deposits of an unknown material with synchronous development of squamous papilloma.

19.
Diagn Pathol ; 9: 81, 2014 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-24735727

RESUMO

BACKGROUND: Melanotic Xp11 translocation renal cancer is a rare tumor belonging to the family of microphthalmia-associated transcription factor (MiTF)/transcription factor E (TFE) neoplasms. This tumor family also includes alveolar soft part sarcoma, perivascular epithelioid cell neoplasms, Xp11 translocation renal cell carcinoma, and melanoma. To date, six confirmed melanotic Xp11 translocation cancers (five renal, one ovarian) have been reported in the literature. CASE REPORT: Here, we report the clinical, histologic, immunohistochemical, and molecular features of a unique melanotic Xp11 translocation renal cancer arising in a 34-year-old African-American female. Histologically, the tumor was composed of epithelioid tumor cells arranged in a nested pattern. The cells had clear to eosinophilic granular cytoplasm, vesicular nuclear chromatin, and prominent nucleoli. Multifocal intracytoplasmic deposits of granular brown melanin pigment were identified and confirmed by Fontana-Masson stain. An unusual histologic feature, not previously reported in melanotic Xp11 translocation renal cancer, was a sarcoid-like granulomatous reaction consisting of tight epithelioid granulomas with lymphocytic cuffing, numerous giant cells, and calcifications. Nuclear transcription factor E3 expression was identified by immunohistochemistry and TFE3 rearrangement was confirmed by fluorescence in situ hybridization. Additional immunohistochemical findings included immunoreactivity for HMB45, cathepsin K, and progesterone receptor; negative staining was seen with actin, desmin, cytokeratins, epithelial membrane antigen, CD10, vimentin, and PAX-8. The patient is currently free of disease, two years following initial clinicoradiologic presentation and twenty-two months following partial nephrectomy without additional therapy. CONCLUSION: This report further expands the spectrum of morphologic and clinical findings previously described in melanotic Xp11 translocation renal cancer, a distinctive tumor showing overlapping features between Xp11 translocation renal cell carcinoma, melanoma, and perivascular epithelioid cell neoplasms. VIRTUAL SLIDES: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/7225796341180634.


Assuntos
Biomarcadores Tumorais/genética , Carcinoma de Células Renais/genética , Carcinoma de Células Renais/patologia , Cromossomos Humanos X , Neoplasias Renais/genética , Neoplasias Renais/patologia , Translocação Genética , Adulto , Fatores de Transcrição de Zíper de Leucina e Hélice-Alça-Hélix Básicos/genética , Biomarcadores Tumorais/análise , Carcinoma de Células Renais/química , Carcinoma de Células Renais/cirurgia , Feminino , Rearranjo Gênico , Predisposição Genética para Doença , Humanos , Imuno-Histoquímica , Hibridização in Situ Fluorescente , Neoplasias Renais/química , Neoplasias Renais/cirurgia , Melaninas/análise , Nefrectomia , Fenótipo , Resultado do Tratamento
20.
Urology ; 81(4): e25-6, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23453077

RESUMO

Pelvic fractures are commonly associated with urethral disruption; however, urethral injury from the repair of these fractures is rarely reported. Thus, the management of these injuries has not been well defined. We report a case of urethral injury from orthopedic screw insertion presenting 3 months postoperatively and effectively managed with removal of the screw and temporary Foley catheterization.


Assuntos
Parafusos Ósseos/efeitos adversos , Fixação Interna de Fraturas/efeitos adversos , Hematúria/etiologia , Uretra/lesões , Remoção de Dispositivo , Fixação Interna de Fraturas/instrumentação , Fraturas Ósseas/cirurgia , Hematúria/cirurgia , Humanos , Masculino , Ossos Pélvicos/lesões , Ossos Pélvicos/cirurgia , Cateterismo Urinário
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