Signs in Thoracic Radiology-For the Radiology Residents
CT angiogram sign-Enhancing braching pulmonary vesseles visualised against a low attenuation lung parenchyma.
The CT angiogram sign was initially described as a specific sign of lobar bronchoalveolar cell carcinoma; specificity can be as high as 92.3%. Recently, the results of several retrospective studies have challenged the specificity of the CT angiogram sign; the CT angiogram sign was reported to be seen in both benign and malignant entities, including bronchoalveolar cell carcinoma, pneumonia, pulmonary edema, obstructive pneumonitis due to central lung tumors, lymphoma, and metastasis from gastrointestinal carcinomas.
An excellent article with image, differentials and findings here-
Signs in Thoracic Radiology-For the Radiology Residents
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Reviewed by Sumer Sethi
on
Monday, January 16, 2006
Rating:
Sumer Sethi
Unique blend of academic excellence and entrepreneurship, heading leading firms in India- Teleradiology Providers, pioneering company providing teleradiology services and DAMS (Delhi Academy of Medical Sciences) Premier test preparation institute in India for MD/MS/MCI preparation. He has also been an invited faculty member at various conferences, including Teleradiology in IRIA 2008 and 2011, Hospital Build Middle East, Congress of the Brain Tumor Radiology in Neuro-oncology Society. Dr. Sethi is Editor-in-Chief of Internet Journal of Radiology. He has a keen interest in Web 2.0 technologies and in maintaining his famous radiology blog, which has been featured in multiple international journals.
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