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1.
J Obstet Gynaecol ; 42(5): 1419-1423, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34985379

RESUMEN

We conducted a study to assess the efficacy and outcome results of Manchester operation for women with symptomatic elongation of uterine cervix between 2010 and 2020. Forty-five women were enrolled. Mean age was 54.2 ± 10.5 years, 57.5% were premenopausal. Mean follow up was 4.53 years. Most patients were pleased from the surgery: 29 (76.3%) very pleased and three (7.9%) quite pleased. There were four cases of late postoperative complications: hematometra, pyometra, vesicovaginal fistula and small bowel evisceration through the posterior vaginal fornix. All four cases required surgical interventions with complete recovery. Manchester operation is an effective procedure for symptomatic elongation of uterine cervix. The surgery is short, minimal blood loss and without significant intraoperative complications. However, it is not free of late postoperative complications and it is therefore important that the surgery will be carried out with a strict technique and by skilled surgeons who are capable to manage unique postoperative complications.Impact StatementWhat is already known on this subject? Elongation of the uterine cervix is a condition that has not been sufficiently studied. Up-to-date data regarding the efficacy and safety of the Manchester operation for patients with cervical elongation and normal pelvic support are scarce, as most previously published studies included mainly patients with uterine prolapse.What do the results of this study add? The present study presents the efficacy, complications and clinical outcomes of Manchester operation for women with elongation of the uterine cervix. Our results show that Manchester operation is safe, effective method for symptomatic uterine cervix elongation.What are the implications of these findings for clinical practice and/or further research? This suggests Manchester operation is an effective procedure for symptomatic uterine cervix elongation should be implemented more widely. It must be carried out with a strict technique by skilled surgeons capable to manage unique postoperative complications.


Asunto(s)
Procedimientos Quirúrgicos Ginecológicos , Neoplasias del Cuello Uterino , Adulto , Femenino , Procedimientos Quirúrgicos Ginecológicos/métodos , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Resultado del Tratamiento
2.
Gynecol Oncol ; 150(1): 56-60, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29859673

RESUMEN

OBJECTIVE: The Silva invasion pattern-based classification system stratifies endocervical adenocarcinomas (ECAs) into 3 categories corresponding to risk of metastasis and recurrence, but has only been evaluated for HPV-associated ECAs of usual type. We examined whether the Silva system is applicable to all endocervical adenocarcinomas, especially those not associated with HPV. METHODS: Complete slide sets from 341 surgical specimens of ECA were collected from 7 institutions worldwide. All specimens were associated with clinical records covering at least 5 years of follow-up. Tumors were classified as HPV-associated (HPVA) or not (NHPVA) by both morphology and detection of HPV using in situ hybridization. Recurrence and survival were analyzed by multivariate Mantel-Haenszel methods. RESULTS: Most specimens (292; 85.6%) were HPVA, while 49 (14.3%) were NHPVA. All NHPVAs were Silva pattern C, while 76.0% of HPVAs were pattern C, 14.7% pattern A, and 9.3% pattern B. Including both HPVAs and NHPVAs, lymphovascular invasion (LVI) was detected in 0% of pattern A, 18.5% of pattern B and 62.6% of pattern C cases (p < 0.001). None of the pattern A or B cases were associated with lymph node metastases (LNM), in contrast to pattern C cases (21.8%). Among patients with Silva pattern C ECA, those with HPVA tumors had a lower recurrence rate and better survival than those with NHPVA; however, when adjusted for stage at diagnosis, the difference in recurrence and mortality was small and not statistically significant. CONCLUSIONS: Application of the Silva system is only relevant in HPVA cervical adenocarcinoma.


Asunto(s)
Adenocarcinoma/patología , Metástasis Linfática/inmunología , Papillomaviridae/patogenicidad , Infecciones por Papillomavirus/patología , Neoplasias del Cuello Uterino/patología , Adenocarcinoma/mortalidad , Femenino , Humanos , Recurrencia Local de Neoplasia , Factores de Riesgo , Tasa de Supervivencia , Neoplasias del Cuello Uterino/mortalidad
4.
Mol Hum Reprod ; 20(9): 844-9, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24874553

RESUMEN

The luteinizing hormone receptor (LHR) plays a pivotal role during follicular development. Consequently, its expression pattern is of major importance for research and has clinical implications. Despite the accumulated information regarding LHR expression patterns, our understanding of its expression in the human ovary, specifically at the protein level, is incomplete. Therefore, our aim was to determine the LHR protein localization and expression pattern in the human ovary. We examined the presence of LHR by immunohistochemical staining of human ovaries and western blots of mural granulosa and cumulus cells aspirated during IVF treatments. We were not able to detect LHR protein staining in primordial or primary follicles. We observed equivocal positive staining in granulosa cells and theca cells of secondary follicles. The first appearance of a clear signal of LHR protein was observed in granulosa cells and theca cells of small antral follicles, and there was evidence of increasing LHR production as the follicles mature to the pre-ovulatory stage. After ovulation, LHR protein was ubiquitously produced in the corpus luteum. To confirm the expression pattern in granulosa cells and cumulus cells, we performed western blots and found that LHR expression was stronger in granulosa cells than in cumulus cells, with the later demonstrating low, but still significant, amounts of LHR protein. In summary, we conclude that LHR protein starts to appear on granulosa cells and theca cells of early antral follicles, and low but significant expression of LHR exists also in the cumulus cells. These results may have implications for the future design of clinical protocols and culture mediums for in vitro fertilization and especially in vitro maturation of oocytes.


Asunto(s)
Regulación del Desarrollo de la Expresión Génica , Luteinización/metabolismo , Oogénesis , Ovario/metabolismo , Ovulación/metabolismo , Receptores de HL/metabolismo , Adolescente , Adulto , Cuerpo Lúteo/citología , Cuerpo Lúteo/crecimiento & desarrollo , Cuerpo Lúteo/metabolismo , Cuerpo Lúteo/patología , Células del Cúmulo/citología , Células del Cúmulo/metabolismo , Células del Cúmulo/patología , Femenino , Células de la Granulosa/citología , Células de la Granulosa/metabolismo , Células de la Granulosa/patología , Humanos , Inmunohistoquímica , Infertilidad Femenina/metabolismo , Infertilidad Femenina/patología , Persona de Mediana Edad , Ovario/citología , Ovario/crecimiento & desarrollo , Ovario/patología , Transporte de Proteínas , Receptores de HL/genética , Células Tecales/citología , Células Tecales/metabolismo , Células Tecales/patología , Adulto Joven
5.
Int J Gynaecol Obstet ; 163(2): 667-671, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37338053

RESUMEN

OBJECTIVE: The EnPlace® device is a novel minimally invasive tool allowing transvaginal sacrospinous ligament (SSL) fixation of apical pelvic organ prolapse (POP). The study aimed to investigate the safety and short-term efficacy of the EnPlace® SSL fixation for significant apical POP repair. METHODS: A retrospective cohort study of 123 consecutive patients (mean age 64.4 ± 11.1 years) with stage III or IV apical POP who underwent SSL fixation by the EnPlace® device. Safety and 6-month outcome results were analyzed and compared between 91 (74%) patients with uterine prolapse versus 32 (26%) patients with vaginal vault prolapse. RESULTS: There were no intraoperative or early postoperative complications. The mean (± standard deviation) duration of surgery was 30 ± 6.9 min and mean blood loss was 30.5 ± 18.5 mL. The average position of point C by POP-Quantification measurements before surgery and at 6 months postoperatively was 4.5 ± 2.8 cm and -3.1 ± 3.3 cm, respectively. Of 91 patients with preoperative uterine prolapse, eight (8.8%) patients developed a recurrent uterine prolapse within 6 months postoperatively. Of 32 patients with preoperative vault prolapse, two patients (6.3%) had recurrent vault prolapse. CONCLUSION: Short-term outcome results of EnPlace® SSL fixation suggest that it is a safe and effective minimally invasive transvaginal procedure for significant apical POP repair.


Asunto(s)
Ligamentos , Prolapso de Órgano Pélvico , Prolapso Uterino , Anciano , Femenino , Humanos , Persona de Mediana Edad , Procedimientos Quirúrgicos Ginecológicos/métodos , Ligamentos/cirugía , Prolapso de Órgano Pélvico/cirugía , Estudios Retrospectivos , Resultado del Tratamiento , Prolapso Uterino/cirugía
6.
J Am Geriatr Soc ; 69(9): 2518-2523, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-33979457

RESUMEN

OBJECTIVES: To present a flexible protocol of vaginal pessaries for older women with significant pelvic organ prolapse (POP). DESIGN: A prospective cohort study of 140 consecutive older women (aged ≥65 years) with significant POP treated with individually fitted vaginal pessaries. After initial insertion, each patient was invited for a first evaluation after 1 month and subsequent follow-ups at increasing intervals of 1 month. During each examination, the pessary was removed and the vagina was inspected for infection, bleeding, or erosions. All patients were advised to use a vaginal estrogen cream twice a week. SETTING: The study was conducted during 2020 in the urogynecology clinic of a tertiary medical center. PARTICIPANTS: The study cohort included 140 consecutive older women with significant and symptomatic POP treated with vaginal pessaries. MAIN OUTCOME: Primary outcomes included time intervals between follow-up visits, pessary-associated complications, need to change the pessary, need to remove the pessary temporarily, and whether the patients eventually underwent POP surgery. RESULTS: The mean age of the patients at the time of pessary fitting was 76.7 ± 9.2 years (range 65-100 years). Mean interval between follow-up examinations was 3.3 ± 1.1 months (range 1-6 months). Most patients (83.6%) used a ring pessary with support, but only a small number of patients were able to maintain the pessary by themselves. Of the 140 patients, five (3.6%) patients only eventually underwent POP surgery, and in 11 (7.9%) patients, the vaginal pessary had to be removed for 2-4 weeks because of significant vaginal discharge or superficial erosions. Additionally, 12 (8.6%) patients developed stress urinary incontinence following pessary insertion. CONCLUSIONS: Customized management with vaginal pessary for symptomatic POP in older women is effective and safe, and is a suitable therapeutic alternative for older women who are unable or unwilling to undergo reconstructive pelvic surgery.


Asunto(s)
Prolapso de Órgano Pélvico/cirugía , Pesarios , Anciano , Anciano de 80 o más Años , Protocolos Clínicos , Diseño de Equipo , Femenino , Humanos , Estudios Prospectivos , Vagina
8.
J Reprod Med ; 52(7): 616-8, 2007 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-17847759

RESUMEN

OBJECTIVE: To analyze the incidence, possible risk factors, preoperative morbidity and outcome results in tension-free vaginal tape (TVT) cases complicated by lower urinary tract injury in a large, heterogeneous, consecutive group of women. STUDY DESIGN: Four hundred sixty consecutive women who underwent TVT surgery for correction of urodynamically proven stress urinary incontinence were enrolled prospectively. All the procedures were performed at 1 center by 3 experienced surgeons. RESULTS: In this series, 3.9% cases of lower urinary tract injury occurred. Most of the injuries occurred during the learning curve. TVT-related urinary tract injury was not associated with increased perioperative morbidity. The cure rates were similar with and without injury. De novo urge and persistent urge incontinence were slightly more common in patients with bladder perforation. CONCLUSION: Lower urinary tract injury during the TVT procedure is directly related to the inexperience of the surgeon. However, TVT-related lower urinary tract injury does not appear to affect medium-term outcome results.


Asunto(s)
Procedimientos Quirúrgicos Ginecológicos/efectos adversos , Cabestrillo Suburetral , Vejiga Urinaria/lesiones , Incontinencia Urinaria de Esfuerzo/cirugía , Procedimientos Quirúrgicos Urológicos/efectos adversos , Anciano , Competencia Clínica , Femenino , Estudios de Seguimiento , Procedimientos Quirúrgicos Ginecológicos/estadística & datos numéricos , Humanos , Incidencia , Israel/epidemiología , Errores Médicos/efectos adversos , Errores Médicos/estadística & datos numéricos , Persona de Mediana Edad , Procedimientos Quirúrgicos Mínimamente Invasivos/efectos adversos , Estudios Prospectivos , Vejiga Urinaria/cirugía , Procedimientos Quirúrgicos Urológicos/estadística & datos numéricos
9.
Biochim Biophys Acta ; 1138(3): 203-12, 1992 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-1547282

RESUMEN

31P- and 13C-NMR were used to determine the kinetics of choline and ethanolamine incorporation in T47D clone 11 human breast cancer cells grown as large (300 microns) spheroids. Spheroids were perfused inside the spectrometer with 1,2-13C-labeled choline or ethanolamine (0.028 mM) and the buildup of labeled phosphorylcholine (PC) or phosphorylethanolamine (PE) was monitored. To analyze the NMR kinetic data, it was assumed that each signal represents a weighted average of signal from the proliferating and non-proliferating compartments of the large spheroid. The average ATP pool size was 4 +/- 1 fmol/cell compared to 8 +/- 1 fmol/cell in small (150 microns) proliferating spheroids (P less than 0.0002). The average PC pool size at steady state was reduced to 11 +/- 6 fmol/cell compared to 22 +/- 8 (P less than 0.007). This could be correlated with an overall reduction of choline uptake in the non-proliferating spheroid fraction. The rate of the enzyme choline kinase was 0.3 fmol/(cell h) compared to 1.0 fmol/(cell h) (P less than 0.0001) for proliferating cells. The rate constant of CTP:phosphocholine cytidyltransferase (0.05 h-1) was not significantly altered, but the rate of the enzyme was reduced from 1.3 to 0.2-0.5 fmol/(cell h). The pool size of PE in medium containing serum ethanolamine (1.7 microM) was approximately the same (15 fmol/cell) in small and large spheroids. In the presence of high ethanolamine (0.028 mM) the average PE level decreased slightly (11 fmol/cell) and the rate of the enzyme ethanolamine kinase in the non-proliferating fraction was 0.7 fmol/(cell h) versus 1.0 fmol/(cell h) in the proliferating cells (P less than 0.07). The rate constant of CTP:phosphoethanolamine cytidyltransferase (0.07 h-1) was not significantly altered but the corresponding reaction rate was reduced from 1.4 to 0.2-0.8 fmol/(cell h). The kinetics of choline incorporation did not alter in the presence of 0.028 mM ethanolamine.


Asunto(s)
Neoplasias de la Mama/metabolismo , Colina/metabolismo , Etanolaminas/metabolismo , Fosforilcolina/metabolismo , Neoplasias de la Mama/patología , División Celular/fisiología , Etanolamina , Humanos , Espectroscopía de Resonancia Magnética , Matemática , Células Tumorales Cultivadas
10.
Biochim Biophys Acta ; 1095(1): 5-16, 1991 Oct 16.
Artículo en Inglés | MEDLINE | ID: mdl-1657190

RESUMEN

31P and 13C-NMR were used to determine the kinetics of choline and ethanolamine incorporation in T47D clone 11 human breast cancer cells grown as small (150 microns) spheroids. Spheroids were perfused inside the spectrometer with 1,2-13C-labeled choline or 1,2-13C-labeled ethanolamine (0.028 mM) and the buildup of labeled phosphoryl-choline (PC) or phosphorylethanolamine (PE) was monitored. Alternatively the PC and GPC pools were prelabeled with 13C and the reduction of label was monitored. 31P spectra were recorded from which the overall energetic status as well as total pool sizes could be determined. The ATP content was 8 +/- 1 fmol/cell, and the total PC and PE pool sizes were 16 and 14 fmol/cell, respectively. PC either increased by 50% over 24 h or remained constant, while PE remained constant in medium without added ethanolamine but increased 2-fold within 30 h in medium containing ethanolamine, indicating a dependence on precursor concentration in the medium. The 31P and 13C data yielded similar kinetic results: the rate of the enzymes phosphocholine kinase and phosphoethanolamine kinase were both on the order of 1.0 fmol/cell per h, and the rate constants for CTP:phosphocholine cytidyltransferase and CTP:phosphoethanolamine kinase were 0.06 h-1 for both enzymes. The kinetics of choline incorporation did not alter in the presence of 0.028 mM ethanolamine indicating that they have non-competing pathways.


Asunto(s)
Neoplasias de la Mama/metabolismo , Colina/metabolismo , Etanolaminas/metabolismo , Neoplasias de la Mama/patología , Citidililtransferasa de Colina-Fosfato , Etanolamina , Glicerilfosforilcolina/metabolismo , Humanos , Cinética , Espectroscopía de Resonancia Magnética , Nucleotidiltransferasas/metabolismo , Fosforilcolina/metabolismo , ARN Nucleotidiltransferasas , Células Tumorales Cultivadas
11.
Harefuah ; 144(7): 502-5, 525, 2005 Jul.
Artículo en Hebreo | MEDLINE | ID: mdl-16082904

RESUMEN

Vaginal delivery is one of the main causes of anal incontinence. While previously postpartum anal incontinence was attributed to neurological damage to the pelvic floor and the rectal sphincter, today we know that mechanical injury plays an important role, especially when symptoms start soon after delivery. Risk factors for postpartum fecal incontinence are: forceps delivery, nulliparity, birth weight over 4 kilograms and persistent occiput posterior presentation of the fetal head. Anal incontinence developed in 42% of women who had posterolateral episiotomy. Therefore, the main focus of the treating physician should be on prevention by avoiding birth trauma followed by early recognition and skilful correction.


Asunto(s)
Trastornos Puerperales/fisiopatología , Incontinencia Urinaria/etiología , Peso al Nacer , Parto Obstétrico/métodos , Femenino , Humanos , Paridad , Embarazo , Factores de Riesgo
12.
Neoplasia ; 2(1-2): 152-65, 2000.
Artículo en Inglés | MEDLINE | ID: mdl-10933074

RESUMEN

The lack of information regarding the metabolism and pathophysiology of individual tumors limits, in part, both the development of new anti-cancer therapies and the optimal implementation of currently available treatments. Magnetic resonance [MR, including magnetic resonance imaging (MRI), magnetic resonance spectroscopy (MRS), and electron paramagnetic resonance (EPR)] provides a powerful tool to assess many aspects of tumor metabolism and pathophysiology. Moreover, since this information can be obtained nondestructively, pre-clinical results from cellular or animal models are often easily translated into the clinic. This review presents selected examples of how MR has been used to identify metabolic changes associated with apoptosis, detect therapeutic response prior to a change in tumor volume, optimize the combination of metabolic inhibitors with chemotherapy and/or radiation, characterize and exploit the influence of tumor pH on the effectiveness of chemotherapy, characterize tumor reoxygenation and the effects of modifiers of tumor oxygenation in individual tumors, image transgene expression and assess the efficacy of gene therapy. These examples provide an overview of several of the areas in which cellular and animal model studies using MR have contributed to our understanding of the effects of treatment on tumor metabolism and pathophysiology and the importance of tumor metabolism and pathophysiology as determinants of therapeutic response.


Asunto(s)
Imagen por Resonancia Magnética/métodos , Neoplasias/diagnóstico , Neoplasias/patología , Animales , Apoptosis , Humanos , Neoplasias/tratamiento farmacológico , Factores de Tiempo
13.
FEBS Lett ; 266(1-2): 147-9, 1990 Jun 18.
Artículo en Inglés | MEDLINE | ID: mdl-2365062

RESUMEN

The in vivo 31P NMR spectrum of T47D human breast cancer cells grown as spheroids shows changes in the phosphomonoester lipid precursors as a function of spheroid size. The ratio of phosphorylethanolamine (PE) to phosphorylcholine (PC) was 1.0 +/- 0.3 for 3-day-old, 150 microns spheroids. This ratio increased to 2.4 +/- 0.4 for spheroids 7 days and older and which were at least 300 microns in diameter. To investigate the phosphatidylethanolamine to phosphatidylcholine (PdylE/PdylC) ratio in the membranes, chloroform/methanol extracts of spheroids were performed. The 31P spectrum of these extracts showed no change with spheroid size, namely the PdylE/PdylC ratio was 0.5 +/- 0.06 for spheroids of all ages suggesting that membrane composition is strongly regulated at the precursor level.


Asunto(s)
Neoplasias de la Mama/metabolismo , Fosfolípidos/metabolismo , Humanos , Técnicas In Vitro , Espectroscopía de Resonancia Magnética , Lípidos de la Membrana/metabolismo , Organoides , Fosfatidilcolinas/metabolismo , Fosfatidiletanolaminas/metabolismo , Factores de Tiempo , Células Tumorales Cultivadas
14.
J Nucl Med ; 41(10): 1753-9, 2000 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-11038008

RESUMEN

UNLABELLED: Many studies suggest that changes in the uptake of the glucose analog FDG after therapy, compared with pretreatment uptake, predicts tumor response to therapy. However, clinical interpretation is compromised by a limited understanding of the effect of therapy on FDG and 2-deoxy-D-glucose (DG) uptake at the tumor cell level. METHODS: Uptake of 2-deoxy-D-[1-(3)H]glucose (3H-DG) by SW620 colonic tumor cells was measured before and 8, 16, 24, and 48 h after treatment with the novel platinum drug oxaliplatin and the novel thymidylate synthase inhibitor Tomudex. Glucose transport was determined by measuring the initial rate of uptake of the nearly nonmetabolized glucose analog 3-O-methyl-D-[1-(3)H]glucose (3H-OMG). The effect of these drugs on cell cycle kinetics was determined using flow cytometry. RESULTS: Treatment of SW620 cells with oxaliplatin was found to decrease uptake of 3H-DG after up to 24 h, but uptake returned to control levels after longer treatment. The initial decrease in 3H-DG incorporation was associated with a lower rate of glucose transport. Treatment of cells with Tomudex induced an increase in 3H-DG uptake that depended on treatment duration. Both glucose transport and the volume of distribution of 3H-OMG were higher in Tomudex-treated cells than in control cells. Flow cytometry showed that oxaliplatin induced a G2 and M arrest, whereas a buildup of cells in the S phase was associated with Tomudex treatment. Both treatments induced apoptosis in SW620 cells. CONCLUSION: Changes in uptake of DG by SW620 colonic tumor cells responding to therapy is specific to the drug type. Modulation of glucose transport was associated with changes in 3H-DG uptake.


Asunto(s)
Antineoplásicos/farmacología , Inhibidores Enzimáticos/farmacología , Compuestos Organoplatinos/farmacología , Quinazolinas/farmacología , Tiofenos/farmacología , Transporte Biológico , Ciclo Celular/efectos de los fármacos , Neoplasias del Colon/patología , Desoxiglucosa/metabolismo , Citometría de Flujo , Glucosa/metabolismo , Humanos , Oxaliplatino , Timidilato Sintasa/antagonistas & inhibidores , Factores de Tiempo , Tritio , Células Tumorales Cultivadas/efectos de los fármacos , Células Tumorales Cultivadas/metabolismo
15.
Chest ; 115(5): 1473-5, 1999 May.
Artículo en Inglés | MEDLINE | ID: mdl-10334178

RESUMEN

A patient with end-stage renal failure, due to IgA nephropathy, was found to have a mediastinal mass. Biopsy specimen of the mass showed a necrotizing vasculitis. Antineutrophil antibodies to myeloperoxidase were strongly positive. To our knowledge, no case of a mediastinal mass due vasculitis has been reported in the literature, and our observation should lead to broadening of the spectrum of clinical manifestations of vasculitis.


Asunto(s)
Anticuerpos Anticitoplasma de Neutrófilos/análisis , Hemoptisis/etiología , Enfermedades del Mediastino/complicaciones , Vasculitis/complicaciones , Glomerulonefritis por IGA/complicaciones , Humanos , Masculino , Enfermedades del Mediastino/diagnóstico , Persona de Mediana Edad , Necrosis , Vasculitis/diagnóstico , Vasculitis/inmunología
16.
Ann Thorac Surg ; 70(2): 671-2, 2000 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-10969705

RESUMEN

A 30-year-old nonsmoking man underwent a left lower lobectomy with bronchoplasty for an obstructing lesion of the left lower lobe. Pathology results demonstrated a psammomatous melanotic schwannoma, a rare pigmented neural tumor of which only 25 cases have been reported as originating in the respiratory tract.


Asunto(s)
Neoplasias de los Bronquios/patología , Neurilemoma/patología , Adulto , Bronquios/cirugía , Neoplasias de los Bronquios/cirugía , Humanos , Masculino , Neurilemoma/cirugía
17.
Arch Pathol Lab Med ; 124(6): 872-6, 2000 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-10835524

RESUMEN

Calcifying epithelial odontogenic tumor, also known as Pindborg tumor, is a rare benign tumor with locally aggressive behavior. It is characterized by squamous epithelial cells, calcifications, and eosinophilic deposits that have been identified as amyloid. We report a case of calcifying epithelial odontogenic tumor and investigate the nature of the amyloid, using histologic, immunohistochemical, and ultrastructural studies. The amyloid was immunohistochemically negative for basement membrane components and positive for all cytokeratin stains performed (cocktail of cytokeratins 1, 5, 6, 8, 13, and 16, and cytokeratins AE1 and AE3). The amyloid stained focally in a glandular-like pattern, reminiscent of the epithelial glandlike structures of the tumor. We conclude that the amyloid is derived from filamentous degeneration of keratin filaments that originate from the tumor squamous epithelium. The keratin degeneration is part of a developmental or aging process that the tumor undergoes.


Asunto(s)
Amiloide/análisis , Queratinas/análisis , Neoplasias Maxilares/patología , Tumores Odontogénicos/patología , Calcinosis/patología , Células Epiteliales/patología , Femenino , Humanos , Inmunohistoquímica , Neoplasias Maxilares/diagnóstico por imagen , Neoplasias Maxilares/cirugía , Persona de Mediana Edad , Tumores Odontogénicos/diagnóstico por imagen , Tumores Odontogénicos/cirugía , Radiografía
18.
Acad Manage Rev ; 6(1): 61-74, 1981 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-10249891

RESUMEN

The results from recent studies on the compressed work week have been compiled and categorized in order to provide some basis for generalizing the effects of the work schedule on employee attitudes and behavior. It appears that attitudes toward the compressed week are favorable, with some generalization to job attitudes. Performance outcomes are ambiguous, although there are no reported decreases; fatigue seems to be the only negative aspect of the longer day. An examination of mediating variables suggests more complex relationships between the implementation of the compressed work week and potential outcomes. These relationships are described and directions are indicated for future research.


Asunto(s)
Satisfacción en el Trabajo , Administración de Personal , Admisión y Programación de Personal , Trabajo , Actitud , Humanos , Factores de Tiempo
19.
J Pediatr Ophthalmol Strabismus ; 17(5): 323-4, 1980.
Artículo en Inglés | MEDLINE | ID: mdl-7441445

RESUMEN

A case presenting with three episodes of recurrent benign abducens palsy is reported. The patient experienced her first episode at age of 3 years, her second when she was 13 years old, and the last at the age of 25 during pregnancy. Full recovery was attained within approximately three months after each episode.


Asunto(s)
Nervio Abducens/fisiopatología , Fiebre/complicaciones , Oftalmoplejía/etiología , Adulto , Femenino , Humanos , Embarazo , Recurrencia
20.
J Pediatr Ophthalmol Strabismus ; 16(2): 119-21, 1979.
Artículo en Inglés | MEDLINE | ID: mdl-458517

RESUMEN

The importance of early management of sight in a baby with Hallermann-Streiff-Francois syndrome is described. Surgery for bilateral cataract was performed. Special postcataract contact lenses were fitted.


Asunto(s)
Extracción de Catarata , Síndrome de Hallermann/terapia , Disostosis Mandibulofacial/terapia , Catarata/complicaciones , Lentes de Contacto , Córnea/anomalías , Síndrome de Hallermann/diagnóstico , Humanos , Lactante , Recién Nacido , Masculino , Microftalmía/complicaciones , Microftalmía/terapia
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