The CT Angiogram Sign

Maldonado, Roberto L.

doi:10.1148/radiology.210.2.r99fe14323

Cited by 27 publications

(11 citation statements)

References 12 publications

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“…18). This sign has been described in the lobar form of bronchoalveolar cell carcinoma (17,24). Another important cause of the CT angiogram sign is pneumonia.…”

Section: Ct Angiogram Signmentioning

confidence: 86%

Signs in chest imaging: a pictorial review

Algın

Gökalp²,

Topal³

2009

Diagn Interv Radiol

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A radiological sign can sometimes resemble a particular object or pattern and is often highly suggestive of a group of similar pathologies. Awareness of such similarities can shorten the differential diagnosis list. Many such signs have been described for X-ray and computed tomography (CT) images. In this article, we present the most frequently encountered plain film and CT signs in chest imaging. These signs include for plain films the air bronchogram sign, silhouette sign, deep sulcus sign, Continuous diaphragm sign, air crescent ("meniscus") sign, Golden S sign, cervicothoracic sign, Luftsichel sign, scimitar sign, doughnut sign, Hampton hump sign, Westermark sign, and juxtaphrenic peak sign, and for CT the gloved finger sign, CT halo sign, signet ring sign, comet tail sign, CT angiogram sign, crazy paving pattern, tree-in-bud sign, feeding vessel sign, split pleura sign, and reversed halo sign.

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“…18). This sign has been described in the lobar form of bronchoalveolar cell carcinoma (17,24). Another important cause of the CT angiogram sign is pneumonia.…”

Section: Ct Angiogram Signmentioning

confidence: 86%

Signs in chest imaging: a pictorial review

Algın

Gökalp²,

Topal³

2009

Diagn Interv Radiol

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“…First described as being specific to the pneumonic form of BAC, the angiogram sign can be seen in numerous entities, such as infectious pneumonia, pulmonary edema, postobstructive pneumonia, lymphoma, and metastases. (19) Aspects of bronchioloalveolar carcinoma and of adenocarcinoma with a bronchioloalveolar component: CT findings J Bras Pneumol. 2012;38(2):218-225…”

Section: Consolidationmentioning

confidence: 99%

“…Some findings, such as the angiogram sign, air bronchograms, ground-glass opacities, and air-space nodules (Figure 6), can be observed in BAC and in lobar pneumonia. (3,19) Lymph node enlargement and pleural effusion can also be found in both entities. (16) Parenchymal consolidation that remains unresolved after opacities is crucial.…”

Section: Consolidationmentioning

confidence: 99%

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Aspectos tomográficos do carcinoma bronquíolo-alveolar e dos adenocarcinomas mistos com componente bronquíolo-alveolar

Torres

Capobianco

Júnior³

et al. 2012

J. bras. pneumol.

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Bronchioloalveolar carcinoma has various presentations and a wide spectrum of imaging patterns, as does adenocarcinoma with a bronchioloalveolar component. The objective of this essay was to describe and illustrate the CT findings that are most characteristic of these tumors. Three presentations are described: solitary pulmonary nodule, consolidation, and diffuse pattern. The last two should be included in the differential diagnosis, together with infectious diseases. Knowledge of the various presentations and the use of proper diagnostic procedures are crucial to early diagnosis and to improving survival.Keywords: Lung neoplasms; Adenocarcinoma, bronchiolo-alveolar; Tomography, X-ray computed. ResumoO carcinoma bronquíolo-alveolar e os adenocarcinomas mistos com componente bronquíolo-alveolar têm apresentações variadas e múltiplos padrões por imagem. O objetivo deste ensaio foi descrever e ilustrar os achados mais característicos desses tumores em TC. São descritas três apresentações: nódulo pulmonar solitário, consolidação e apresentação difusa, sendo que as duas últimas são importantes no diagnóstico diferencial com acometimento infeccioso. O conhecimento das diversas apresentações e a utilização de propedêutica diagnóstica adequada são definitivos para o diagnóstico precoce e o aumento na sobrevida.Descritores: Neoplasias pulmonares; Adenocarcinoma bronquíolo-alveolar; Tomografia computadorizada por raios X. * Study carried out at Multimagem Diagnósticos, Goiânia, at Fleury Medicine and Health, São Paulo, and at the Heart Hospital, São Paulo, Brazil. Correspondence to: Pedro Paulo Teixeira e Silva Torres Rua S-4, 452, apto. 102, Bela Vista, CEP 74823-450, Goiânia, GO, Brasil. Tel. 55 62 3212-1015. E-mail: pedroptstorres@yahoo.com Pictorial EssayAspects of bronchioloalveolar carcinoma and of adenocarcinoma with a bronchioloalveolar component: CT findings J Bras Pneumol. 2012;38(2):218-225 219 diagnostic criteria. (11) Although there is a need for universally accepted criteria for subtypes of adenocarcinoma, the authors of the proposal are aware that there will be a period of adaptation to the new terms and recommend that they be initially used concomitantly with the current nomenclature. (11) The objective of the present essay was to describe the CT findings that are most characteristic of BAC and adenocarcinoma with a bronchioloalveolar component by means of a series of illustrative cases. Imaging patterns of BAC and adenocarcinoma with a bronchioloalveolar component Pulmonary nodule and focal groundglass opacitiesA solitary pulmonary nodule, usually in the periphery of the upper lobes, is described as the most common CT finding in BAC and adenocarcinoma with a bronchioloalveolar component. (12) Most of these nodules are semisolid, with solid and ground-glass components, as well as exhibiting irregular borders and pleural indentation. (7) Although cavitation is rare in the initial presentation, some nodules can have focal lucent areas, known as pseudocavitation ( Figure 1). (7,13) There might be ca...

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“…It consists of normally enhancing branching pulmonary vessels in a homogeneous low-attenuating consolidation of lung parenchyma relative to the chest wall musculature, which can be caused by the production of mucin within the air spaces 35 . Recently, the CT angiogram sign was reported in both benign and malignant entities, including bronchioloalveolar carcinoma, pneumonia, pulmonary edema, obstructive pneumonitis due to central lung tumors, lymphoma, and metastasis from gastrointestinal carcinomas 36 . Although the angiogram sign is not specific for bronchioloalveolar carcinoma, it may still be considered a useful sign in imaging, including MRI.…”

Section: Other Characteristic Findings On Contrast-enhanced Mrimentioning

confidence: 99%

Usefulness of contrast-enhanced magnetic resonance imaging for evaluating solitary pulmonary nodules

Fujimoto

2008

Cancer Imaging

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Evaluation of solitary pulmonary nodules (SPNs) poses a challenge to radiologists. Chest computed tomography (CT) is considered the standard technique for assessing morphologic findings and intrathoracic spread of an SPN. Although the clinical role of magnetic resonance imaging (MRI) for SPNs remains limited, considerable experience has been gained with MRI of thoracic diseases. Dynamic MRI and dynamic CT are useful for differentiating between malignant and benign SPNs (especially tuberculomas and hamartomas). Furthermore, dynamic MRI is useful for assessing tumor vascularity, interstitium, and vascular endothelial growth factor expression, and for predicting survival outcome among patients with peripheral pulmonary carcinoma. These advantages make dynamic MRI a promising method and a potential biomarker for characterizing tumor response to anti-angiogenic treatment as well as for predicting survival outcomes after treatment.

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The CT Angiogram Sign

Cited by 27 publications

References 12 publications

Signs in chest imaging: a pictorial review

Signs in chest imaging: a pictorial review

Aspectos tomográficos do carcinoma bronquíolo-alveolar e dos adenocarcinomas mistos com componente bronquíolo-alveolar

Usefulness of contrast-enhanced magnetic resonance imaging for evaluating solitary pulmonary nodules

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