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1.
Artigo em Inglês | MEDLINE | ID: mdl-38777715

RESUMO

Thoracic endovascular aneurysm repair (TEVAR) has replaced open surgical repair as the treatment of choice for several aortic conditions. Despite its lower morbidity and mortality, several TEVAR-related complications can occur and some of which may necessitate surgical or endovascular re-intervention. The current article reviews common and rare complications of TEVAR procedure with emphasis on complications identifiable on cross-sectional imaging and potential pitfalls of pre-procedural planning.

2.
Cureus ; 12(6): e8583, 2020 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-32670718

RESUMO

Coagulopathy and thromboembolic disease, including pulmonary embolism (PE), are reported complications of coronavirus disease 2019 (COVID-19). The mechanism is not fully understood. We present three patients with COVID-19 and concurrent PE.

3.
Radiographics ; 39(2): 344-366, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30844346

RESUMO

Radiation therapy is one of the cornerstones for the treatment of thoracic malignancies. Although advances in radiation therapy technology have improved the delivery of radiation considerably, adverse effects are still common. Postirradiation changes affect the organ or tissue treated and the neighboring structures. Advances in external-beam radiation delivery techniques and how these techniques affect the expected thoracic radiation-induced changes are described. In addition, how to distinguish these expected changes from complications such as infection and radiation-induced malignancy, and identify treatment failure, that is, local tumor recurrence, is reviewed. ©RSNA, 2019.


Assuntos
Mama/efeitos da radiação , Coração/efeitos da radiação , Pulmão/efeitos dos fármacos , Neoplasias Induzidas por Radiação/diagnóstico por imagem , Lesões por Radiação/diagnóstico por imagem , Radiografia/métodos , Radioterapia/efeitos adversos , Osso e Ossos/diagnóstico por imagem , Osso e Ossos/efeitos da radiação , Mama/diagnóstico por imagem , Feminino , Coração/diagnóstico por imagem , Humanos , Pulmão/diagnóstico por imagem , Linfonodos/diagnóstico por imagem , Linfonodos/efeitos da radiação , Masculino , Doses de Radiação , Lesões por Radiação/etiologia , Radioterapia/métodos , Tomografia Computadorizada por Raios X
4.
Abdom Radiol (NY) ; 43(12): 3468-3478, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-29974177

RESUMO

Neuroendocrine cervical cancer (NECC) is a rare and aggressive subtype of cervical cancer, accounting for less than 2% of cervical tumors. They are divided into low-grade and high-grade tumors. High-grade NECC is associated with human papillomavirus (HPV) 18 and to a smaller extent type 16. The most common molecular alterations in NECC include PIK3CA, KRAS, and TP53 mutations. Immunohistochemical staining for CD56, synaptophysin, and chromogranin is a helpful tool in the diagnosis. NECCs pose a significant clinical and therapeutic challenge because of their aggressive nature which is explained by their tendency towards early nodal and hematogenous spread. They have a median survival of 21-22 months, compared to 10 years in cervical squamous cell carcinomas. NECCs have a homogeneous high T2 signal intensity, homogeneous contrast enhancement and lower ADC values in MRI, compared to non-neuroendocrine tumors of the cervix. It is recommended to treat NECC with a multimodality therapeutic approach combining radical hysterectomy, systemic chemotherapy, and radiotherapy. The objective of this manuscript is to address the pathogenesis of NECC, elaborate the role of radiological imaging in the diagnosis and staging of NECCs, evaluate their prognosis, and summarize the suggested management plans for this lethal disease.


Assuntos
Carcinoma Neuroendócrino/diagnóstico por imagem , Carcinoma Neuroendócrino/patologia , Diagnóstico por Imagem/métodos , Neoplasias do Colo do Útero/diagnóstico por imagem , Neoplasias do Colo do Útero/patologia , Colo do Útero/diagnóstico por imagem , Colo do Útero/patologia , Feminino , Humanos , Estadiamento de Neoplasias
5.
Radiol Clin North Am ; 56(4): 535-548, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29936946

RESUMO

Dual-energy CT (DECT) is an emerging technology that has potential to enhance diagnostic performance and radiologists' confidence in the evaluation of thoracic malignancies. DECT clinical applications include characterization of solitary pulmonary nodule, lung masses and mediastinal tumors. DECT-derived iodine uptake quantification may assist in characterization of tumor differentiation and gene expression. The use DECT in oncology has potential to improve lung cancer staging, therapy planning, and assessment of response to therapy as well as detection of incidental pulmonary embolism.


Assuntos
Neoplasias Cardíacas/diagnóstico por imagem , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias do Mediastino/diagnóstico por imagem , Neoplasias Pleurais/diagnóstico por imagem , Imagem Radiográfica a Partir de Emissão de Duplo Fóton/métodos , Tomografia Computadorizada por Raios X/métodos , Coração/diagnóstico por imagem , Humanos , Pulmão/diagnóstico por imagem , Mediastino/diagnóstico por imagem , Pleura/diagnóstico por imagem
6.
Semin Ultrasound CT MR ; 39(3): 260-272, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29807636

RESUMO

Lung cancer is the leading cause of cancer death in both men and women in the United States. The National Lung Screening Trial (NLST) demonstrated that low-dose computed tomography (CT) screening reduces lung cancer mortality by 20% compared to screening with chest radiography. Currently, many institutions in the US are implementing lung cancer screening programs. The use of lung-RADS as a quality assurance tool allows standardization of lung cancer screening CT lexicon, reporting and management recommendations, and reduces confusion in lung cancer screening CT interpretations. Lung-RADS will also facilitate outcome monitoring and future auditing of lung cancer screening programs, assist research, and consequently refine and improve lung cancer screening practices. Familiarity with lung-RADS version 1.0 is essential not only for radiologists interpreting low-dose computed tomography screening studies, but all medical personnel involved in multidisciplinary lung cancer screening programs. This article reviews the Lung-RADS categories and management recommendations using a case-based approach.


Assuntos
Neoplasias Pulmonares/diagnóstico por imagem , Sistemas de Informação em Radiologia , Tomografia Computadorizada por Raios X/métodos , Humanos , Pulmão/diagnóstico por imagem
7.
Radiol Clin North Am ; 56(3): 353-363, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29622071

RESUMO

The number of screening-detected lung nodules is expected to increase as low-dose computed tomography screening is implemented nationally. Standardized guidelines for image acquisition, interpretation, and screen-detected nodule workup are essential to ensure a high standard of medical care and that lung cancer screening is implemented safely and cost effectively. In this article, we review the current guidelines for pulmonary nodule management in the lung cancer screening setting.


Assuntos
Neoplasias Pulmonares/diagnóstico por imagem , Nódulo Pulmonar Solitário/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Detecção Precoce de Câncer , Humanos , Pulmão/diagnóstico por imagem
8.
Semin Ultrasound CT MR ; 38(6): 559-570, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29179896

RESUMO

Malignant pleural mesothelioma is the most common primary neoplasm of the pleura. Imaging evaluation is essential in diagnosis, staging, and assessment of treatment response in malignant pleural mesothelioma. Computed tomography is the most commonly used modality for tumor staging. Assessment of tumor extension and lymph node involvement is essential in imaging evaluation as locally advanced tumors are amenable to resection. Knowledge of the full imaging spectrum of this rare disease, differential diagnosis, staging classification, and the current guidelines for diagnostic evaluation and follow-up are essential in accurate interpretation to optimize patient management.


Assuntos
Neoplasias Pulmonares , Mesotelioma , Neoplasias Pleurais , Diagnóstico Diferencial , Diagnóstico por Imagem , Seguimentos , Humanos , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/terapia , Mesotelioma/diagnóstico , Mesotelioma/terapia , Mesotelioma Maligno , Estadiamento de Neoplasias , Neoplasias Pleurais/diagnóstico , Neoplasias Pleurais/terapia , Fatores de Risco
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