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1.
J Ultrasound Med ; 35(6): 1113-22, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27091918

RESUMO

The purpose of this review is to discuss the rationale and indications for transvaginal ultrasound-guided biopsy. Transvaginal ultrasound-guided biopsy can be a helpful tool for diagnosis and treatment planning in the evaluation of pelvic masses, particularly when the anatomy precludes a transabdominal or posterior transgluteal percutaneous biopsy approach. A step-by-step summary of the technique with preprocedure and postprocedure considerations is included.


Assuntos
Neoplasias Pélvicas/diagnóstico por imagem , Ultrassonografia de Intervenção/métodos , Feminino , Humanos , Biópsia Guiada por Imagem/métodos , Pelve/diagnóstico por imagem , Vagina/diagnóstico por imagem
2.
J Clin Microbiol ; 53(8): 2773-6, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26063867

RESUMO

A man with newly diagnosed AIDS presented with months of back pain and fever. Computed tomography (CT) results demonstrated aortitis with periaortic tissue thickening. DNA amplification of biopsy tissue revealed Bartonella quintana, and Bartonella serologies were subsequently noted to be positive. The patient improved with prolonged doxycycline and rifabutin treatment. This case illustrates how molecular techniques are increasingly important in diagnosing Bartonella infections.


Assuntos
Síndrome da Imunodeficiência Adquirida/complicações , Aortite/diagnóstico , Aortite/patologia , Bartonella quintana/isolamento & purificação , Febre das Trincheiras/diagnóstico , Febre das Trincheiras/patologia , Antibacterianos/uso terapêutico , Anticorpos Antibacterianos/sangue , Aortite/tratamento farmacológico , Biópsia por Agulha , Análise por Conglomerados , DNA Bacteriano/química , DNA Bacteriano/genética , DNA Ribossômico/química , DNA Ribossômico/genética , Doxiciclina/uso terapêutico , Genes de RNAr , Histocitoquímica , Humanos , Masculino , Microscopia , Pessoa de Meia-Idade , Dados de Sequência Molecular , Filogenia , RNA Ribossômico 16S/genética , Rifabutina/uso terapêutico , Análise de Sequência de DNA , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Febre das Trincheiras/tratamento farmacológico
3.
Skeletal Radiol ; 44(12): 1785-94, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26290325

RESUMO

OBJECTIVE: To determine the characteristics of femoral condyle insufficiency fracture (FCIF) lesions and their relative associations with the risk of clinical progression. MATERIALS AND METHODS: This HIPAA-compliant retrospective study was approved by our Institutional Review Board. Seventy-three patients (age range, 19-95) were included after excluding patients with post-traumatic fractures, bone marrow infarct, osteochondritis dissecans, or underlying tumor. Two board-certified musculoskeletal radiologists classified morphologic findings including lesion diameter, associated bone marrow edema pattern, and associated cartilage/meniscus damage. Electronic medical charts were evaluated for symptoms, risk factors, and longitudinal outcomes, including total knee arthroplasty (TKA). Imaging characteristics were correlated with clinical findings, and comparison of outcome groups was performed using a regression model adjusted for age. RESULTS: The majority of patients with FCIF were women (64.4%, 47/73), on average 10 years older than men (66.28 ± 15.86 years vs. 56.54 ± 10.39 years, p = 0.005). The most common location for FCIF was the central weight-bearing surface of the medial femoral condyle; overlying full thickness cartilage loss (75.7%, 53/70) and ipsilateral meniscal injury (94.1%, 64/68) were frequently associated. Clinical outcomes were variable, with 23.9% (11/46) requiring TKA. Cartilage WORMS score, adjacent cartilage loss, and contralateral meniscal injury, in addition to decreased knee range of motion at presentation, were significantly associated with progression to TKA (p < 0.05). CONCLUSIONS: FCIF are frequently associated with overlying cartilage loss and ipsilateral meniscal injury. The extent of cartilage loss and meniscal damage, in addition to loss of knee range of motion at the time of presentation, are significantly associated with clinical progression.


Assuntos
Doenças das Cartilagens/epidemiologia , Fraturas do Fêmur/epidemiologia , Fraturas do Fêmur/cirurgia , Fraturas de Estresse/epidemiologia , Fraturas de Estresse/cirurgia , Osteonecrose/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Artroplastia do Joelho/estatística & dados numéricos , Doenças das Cartilagens/patologia , Causalidade , Comorbidade , Feminino , Fraturas do Fêmur/patologia , Fraturas de Estresse/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Osteonecrose/patologia , Prevalência , Prognóstico , Estudos Retrospectivos , Medição de Risco , São Francisco/epidemiologia , Resultado do Tratamento , Adulto Jovem
4.
J Am Coll Radiol ; 19(11S): S433-S444, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36436968

RESUMO

Mesenteric ischemia is a serious medical condition characterized by insufficient vascular supply to the small bowel. In the acute setting, endovascular interventions, including embolectomy, transcatheter thrombolysis, and angioplasty with or without stent placement, are recommended as initial therapeutic options. For nonocclusive mesenteric ischemia, transarterial infusion of vasodilators, such as papaverine or prostaglandin E1, is the recommended initial treatment. In the chronic setting, endovascular means of revascularization, including angioplasty and stent placement, are generally recommend, with surgical options, such as bypass or endarterectomy, considered alternative options. Although the diagnosis of median arcuate ligament syndrome remains controversial, diagnostic angiography can be helpful in rendering a diagnosis, with the preferred treatment option being a surgical release. Systemic anticoagulation is recommended as initial therapy for venous mesenteric ischemia with acceptable rates of recanalization. If anticoagulation fails, transcatheter thrombolytic infusion can be considered with possible adjunctive placement of a transjugular intrahepatic portosystemic shunt to augment antegrade flow. The ACR Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision process support the systematic analysis of the medical literature from peer reviewed journals. Established methodology principles such as Grading of Recommendations Assessment, Development, and Evaluation or GRADE are adapted to evaluate the evidence. The RAND/UCLA Appropriateness Method User Manual provides the methodology to determine the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where peer reviewed literature is lacking or equivocal, experts may be the primary evidentiary source available to formulate a recommendation.


Assuntos
Isquemia Mesentérica , Radiologia , Humanos , Isquemia Mesentérica/diagnóstico por imagem , Isquemia Mesentérica/terapia , Sociedades Médicas , Medicina Baseada em Evidências , Anticoagulantes/uso terapêutico
5.
Pediatr Radiol ; 40 Suppl 1: S68-70, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20827472

RESUMO

Liposarcoma is a soft-tissue sarcoma typically seen in adults. It is extremely rare in children. It most often occurs in the extremities or in the retroperitoneum. We present a very rare case of an anterior mediastinal liposarcoma of the pleomorphic subtype in a 17-year-old girl, along with radiological and pathological correlation. The location, patient age and histological subtype are exceedingly uncommon for this tumor.


Assuntos
Lipossarcoma/diagnóstico , Neoplasias do Mediastino/diagnóstico , Mediastino/diagnóstico por imagem , Mediastino/patologia , Doenças Raras/diagnóstico , Adolescente , Feminino , Humanos , Radiografia , Estatística como Assunto
6.
Pediatr Radiol ; 38(2): 209-15, 2008 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17994231

RESUMO

Proximal symphalangism (SYM1) is an autosomal-dominant developmental disorder of joint fusion. This disorder is best known from famous historical descriptions of two large kindred: Cushing's description in 1916 of the "straight-fingered" Brown family of Virginia and Drinkwater's description in 1917 of the British Talbot family of noble blood, descended from the English war hero John Talbot, the first Earl of Shrewsbury (1388-1453). Recent genetic studies link this phenotype to expression of abnormal genes at future joint sites: too little expression of NOG, a growth antagonist, or overexpression of GDF5, a growth agonist, results in cartilage overgrowth and bony fusion. This review unites in depth the first historical accounts of SYM1 with a clinical description and reviews the current understanding of the molecular mechanism underlying what is likely the oldest dominant trait ever studied.


Assuntos
Articulações dos Dedos/anormalidades , Artropatias/história , Proteínas Morfogenéticas Ósseas/genética , Proteínas de Transporte/genética , Articulações dos Dedos/diagnóstico por imagem , Fator 5 de Diferenciação de Crescimento , História do Século XX , Humanos , Artropatias/diagnóstico por imagem , Artropatias/genética , Mutação , Fenótipo , Radiografia
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