Pulmonary Sparganosis: Tunnel Sign and Migrating Sign on Computed Tomography

The Wall Eclipsing Sign on Pulmonary Artery Computed Tomography Angiography Is Pathognomonic for Pulmonary Artery Sarcoma

BACKGROUND The objective of this study was to evaluate the imaging characteristics of pulmonary artery sarcoma (PAS) on pulmonary artery computed tomography angiography (PACTA) that can be used to differentiate between PAS and pulmonary thromboembolic diseases, including chronic thromboembolic pulmonary hypertension (CTEPH) and acute pulmonary embolism (APE). METHODS The clinical data and ima...

Sigmoid volvulus showing a "whirl sign" on computed tomography

Background Sigmoid volvulus is a rare condition. A high incidence has been reported in debilitated, or chronically constipated patients. It is important to recognize this condition early and then initiate prompt treatment. Endoscopic treatment has a high perforation risk. The "whirl sign", was first described by Fisher, as suggesting volvulus of the small bowel, and it was considered that this ...

Multiplanar computed tomography reconstruction to aid in recognition of the middle cerebral artery “Dot” sign: The sagittal string sign

While non-contrast head computed tomography is effective in detecting blood, it is not sensitive in diagnosing hyperacute ischemic stroke. One neuroradiologic marker for early thromboembolic occlusion of the distal middle cerebral artery is the middle cerebral artery "dot" sign. The "dot" seen on the typical axial plane represents a hyperdensity of the middle cerebral artery in the Sylvian fiss...

Angioinvasive aspergillosis with halo sign on computed tomography of the lungs.

1. Departamento de Diagnóstico por Imagem, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP. 2. Centro de Medicina Diagnóstica Fleury, São Paulo, SP. Address to: Dr. Gustavo de Souza Portes Meirelles. Alameda Itu 78/1404, Cerqueira César, 01421-000 São Paulo, SP. Tel: 55 11 8350-9120; 55 11 5014-6806 e-mail: [email protected] Recebido para publicação em: 29/10/20...

Vein of trolard sign on noncontrast computed tomography in Behcet's disease.