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1.
J Ultrasound Med ; 33(4): 691-6, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24658950

RESUMO

OBJECTIVES: The purpose of this study was to determine how often a low-lying placenta, defined as a placenta ending within 2 cm of the internal cervical os but not covering it, diagnosed sonographically in the second trimester resolves before delivery. METHODS: After Institutional Review Board approval was obtained, 1416 pregnancies with a sonographically diagnosed low-lying placenta between 16 and 24 weeks' gestation were identified from our ultrasound database over a 5-year period. We reviewed medical records to determine the gestational age at which the low-lying placenta was first diagnosed, the gestational age at which the placenta was no longer sonographically low lying or covering the cervix, and, of those whose placentas that never cleared the internal cervical os sonographically, how many went on to cesarean delivery as a result of placental location. RESULTS: In total, 1220 of 1240 low-lying placentas (98.4%) that had sonographic follow up resolved to no previa before delivery; 89.9% of placentas cleared the cervix by 32 weeks, and 95.9% cleared by 36 weeks. Twenty patients (1.6%) had persistent sonographic placenta previa or a low-lying placenta at or near term, including 5 complete previas, 7 marginal previas, 5 low-lying placentas, and 3 vasa previas; all had cesarean deliveries. CONCLUSIONS: A low-lying placenta sonographically diagnosed in the second trimester typically resolves by the mid third trimester. Only rarely (1.6% of the time) does it persist to term or near term. Follow-up sonography is warranted to diagnose persistent placenta previa or vasa previa, a complication of a low-lying placenta.


Assuntos
Cesárea/estatística & dados numéricos , Placenta Prévia/diagnóstico por imagem , Placenta Prévia/epidemiologia , Resultado da Gravidez/epidemiologia , Segundo Trimestre da Gravidez , Ultrassonografia Pré-Natal/estatística & dados numéricos , Adulto , Boston/epidemiologia , Feminino , Humanos , Gravidez , Prevalência , Reprodutibilidade dos Testes , Estudos Retrospectivos , Medição de Risco , Sensibilidade e Especificidade , Adulto Jovem
2.
Skeletal Radiol ; 43(5): 615-22, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24496586

RESUMO

OBJECTIVE: To describe MRI, MDCT features, and clinical outcome of extremity leiomyosarcomas (LMS). MATERIALS AND METHODS: In this IRB-approved, HIPAA-compliant retrospective study, we included 47 patients (23 women, 24 men; mean age: 55.3 years, range: 17-85 years) with pathologically confirmed extremity LMS seen at our adult tertiary cancer center between 2000 and 2012. MRI/MDCT of primary tumors in 23 patients and follow-up in all patients were reviewed by two radiologists in consensus. Clinical data were extracted from electronic medical records. RESULTS: Primary tumors were distributed in bones (6 out of 47), deep soft tissues (24 out of 47), and superficial soft tissues (17 out of 47). On imaging (bone = 4, deep soft tissue = 11, superficial soft tissue = 8), compared with skeletal muscle, they were T1 iso-hypointense and T2 hyperintense. Bone LMS were metaphyseal tumors with cortical destruction (3 out of 4). Deep soft-tissue LMS were large with hemorrhage (7 out of 11) and necrosis (10 out of 11). Superficial soft-tissue LMS were relatively smaller, homogeneously enhancing (6 out of 8) tumors. Distant metastases developed in 32 out of 47 patients (bone LMS [6 out of 6], deep soft-tissue LMS [18 out of 24], superficial soft-tissue LMS [8 out of 17]), commonly to lung (29 out of 47) and bone (14 out of 47). At the time of writing, 22 out of 36 patients (bone LMS [4 out of 6], deep soft-tissue LMS [15 out of 24], superficial soft-tissue LMS [4 out of 17]) have died. There was no statistically significant correlation between metastatic disease and tumor size or grade. CONCLUSION: Extremity LMS arise in bones and in the deep and superficial soft tissues, frequently metastasize to the lungs, and have a poor prognosis. Superficial LMS tend to have a better prognosis than bone or deep soft-tissue LMS.


Assuntos
Neoplasias Ósseas/diagnóstico , Leiomiossarcoma/diagnóstico , Imageamento por Ressonância Magnética/métodos , Tomografia Computadorizada Multidetectores/métodos , Neoplasias de Tecidos Moles/diagnóstico , Adolescente , Adulto , Idoso , Extremidades/diagnóstico por imagem , Extremidades/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Adulto Jovem
3.
Emerg Radiol ; 20(4): 259-66, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23604978

RESUMO

The purpose of this paper is to determine the relative frequency of multi-detector CT (MDCT) findings of pancreatic injury in blunt trauma and to determine their diagnostic accuracy in predicting main pancreatic duct injury. Fifty-three patients (31 male, 22 female; mean 44.1 years) with blunt trauma and admission MDCT findings suspicious for pancreatic injury or who underwent MDCT and had a discharge diagnosis of pancreatic trauma were included in this study. Two radiologists reviewed all images and recorded findings suspicious for pancreatic injury, which were subsequently compared to surgical findings to generate diagnostic accuracy. MDCT imaging findings suggestive of pancreatic injury included low attenuation peripancreatic fluid (n = 51), hyperattenuating peripancreatic fluid (n = 13), pancreatic contusion (n = 7), active hemorrhage (n = 2), and pancreatic laceration (n = 16). Diagnostic accuracy of the various imaging findings varied for diagnosing main duct injury; there were highly sensitive, nonspecific imaging findings such as the presence of low attenuation peripancreatic fluid (sensitivity, 100 %; specificity 4.9 %) as well as insensitive, specific findings such as visualizing a pancreatic laceration involving >50 % of the parenchymal width (sensitivity, 50 %; specificity, 95.1 %). In the setting of blunt abdominal trauma, MDCT imaging findings can be grouped into two categories for determining integrity of the main pancreatic duct: indirect, highly sensitive but nonspecific findings and direct, specific but insensitive findings. Awareness of the clinical implications of the various MDCT imaging findings of pancreatic trauma is useful in interpreting their significance.


Assuntos
Tomografia Computadorizada Multidetectores/métodos , Pâncreas/diagnóstico por imagem , Pâncreas/lesões , Ferimentos não Penetrantes/diagnóstico por imagem , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Meios de Contraste , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pâncreas/cirurgia , Ductos Pancreáticos/diagnóstico por imagem , Ductos Pancreáticos/lesões , Ductos Pancreáticos/cirurgia , Valor Preditivo dos Testes , Estudos Retrospectivos , Sensibilidade e Especificidade , Ácidos Tri-Iodobenzoicos , Ferimentos não Penetrantes/cirurgia
4.
Dent Today ; 29(5): 128-31, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20506920

RESUMO

This article has described the different age groups that present for noninvasive injectable lip and perioral augmentation, as well as the breakdown of 3 subgroups that present within the 4 general age groups. With the fundamental understanding of these presenting groups and subgroups, the practicing augmenter will be able to better treatment plan and educate the patient on realistic and optimal aesthetic outcomes.


Assuntos
Técnicas Cosméticas , Rejuvenescimento , Adulto , Fatores Etários , Materiais Biocompatíveis/administração & dosagem , Bochecha/anatomia & histologia , Feminino , Humanos , Injeções , Lábio/anatomia & histologia , Masculino , Pessoa de Meia-Idade , Envelhecimento da Pele , Adulto Jovem
5.
Dent Today ; 28(5): 94-7, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19485016

RESUMO

BTX-A cosmetic injections around the lip and perioral area take approximately 20 minutes of clinical time to perform. The procedure is a minimally invasive way to provide substantial cosmetic improvement to the signs of aging around the lips and can provide an adjunct to lip augmentation. Incorporating this new treatment into your clinical practice requires additional training. It is best to attend training on both BTX-A injectable fillers for a complete education. (There a many more techniques and injection locations for different lip and perioral cosmetic effects). The above case and dosages demonstrated a conservative approach to achieve a superior lip and perioral result.


Assuntos
Toxinas Botulínicas Tipo A/administração & dosagem , Estética Dentária , Lábio/anatomia & histologia , Feminino , Humanos , Injeções Intramusculares , Pessoa de Meia-Idade , Rejuvenescimento , Envelhecimento da Pele
6.
Am J Surg Pathol ; 31(2): 161-9, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17255760

RESUMO

Proposed origins of pelvic serous carcinoma include the ovary, fallopian tube, and peritoneum. Prophylactic salpingo-oophorectomies in BRCA+ women have recently identified the fimbria as a site of origin for early serous carcinoma (tubal intraepithelial carcinoma or TIC). We explored the relationship of TIC to pelvic serous carcinomas in consecutive cases with complete adnexal exam (SEE-FIM protocol). Cases positive (group A) or negative (group B) for endosalpinx (including fimbria) involvement, were subclassified as tubal, ovarian, or primary peritoneal in origin. Coexisting TIC was recorded in group A when present and p53 mutation status was determined in 5 cases. Of 55 evaluable cases, 41 (75%) were in group A; including tubal (n = 5), peritoneal (n = 6), and ovarian (n = 30) carcinomas. Foci of TIC were identified in 5 of 5, 4 of 6, and 20 of 30, respectively. Ninety-three percent of TICs involved the fimbriae. Five of 5 TICs and concurrent ovarian carcinomas contained identical p53 mutations. Thirteen of 14 cases in group B were classified as primary ovarian carcinomas, 10 with features supporting an origin in the ovary. Overall, 71% and 48% of "ovarian" serous carcinomas had endosalpinx involvement or TIC. TIC coexists with all forms of pelvic serous carcinoma and is a plausible origin for many of these tumors. Further studies are needed to elucidate the etiologic significance of TIC in pelvic serous carcinoma, reevaluate the criteria for tubal, peritoneal, and ovarian serous carcinoma, and define the role of the distal tube in pelvic serous carcinogenesis.


Assuntos
Carcinoma in Situ/patologia , Cistadenocarcinoma Seroso/patologia , Neoplasias das Tubas Uterinas/patologia , Segunda Neoplasia Primária/patologia , Neoplasias Pélvicas/patologia , Carcinoma in Situ/genética , Carcinoma in Situ/metabolismo , Cistadenocarcinoma Seroso/genética , Cistadenocarcinoma Seroso/metabolismo , Neoplasias das Tubas Uterinas/genética , Neoplasias das Tubas Uterinas/metabolismo , Feminino , Genes p53/genética , Humanos , Mutação , Segunda Neoplasia Primária/genética , Segunda Neoplasia Primária/metabolismo , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/metabolismo , Neoplasias Ovarianas/patologia , Neoplasias Pélvicas/genética , Neoplasias Peritoneais/genética , Neoplasias Peritoneais/metabolismo , Neoplasias Peritoneais/patologia , Lesões Pré-Cancerosas , Proteína Supressora de Tumor p53/metabolismo
9.
J Law Med Ethics ; 42(4): 412-9, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25565609

RESUMO

Since the passage of Medicare, the self-regulation characteristic of professionalism in health care has come under steady assault. While Canadian physicians chose to relinquish financial autonomy, they have enjoyed far greater professional autonomy over their medical judgments than their U.S. counterparts who increasingly have their practices micromanaged. The Affordable Care Act illustrates the ways that managerial strategies and a market model of health care have shaped the financing and delivery of health care in the U.S., often with little or no evidence of their effectiveness.


Assuntos
Comércio , Medicare , Patient Protection and Affordable Care Act , Autonomia Profissional , Profissionalismo , Humanos , Estados Unidos
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