Four patients with lateral sinus thrombosis were studied by radionuclide (RN) dynamic studies and RN static brain scans. Findings included abrupt termination of RN activity in the midportion of a lateral sinus ('stump sign'); nonvisualization on dynamic, increased visualization on static images ipsilateral to a prominent sinus groove on a plain skull radiograph; and increased activity on static images with nonfilling on angiography. RN demonstration of the 'stump sign' is pathognomonic of lateral sinus occlusion; the latter 2 patterns require radiographic demonstration of an ipsilateral sinus groove or angiography for significance.
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging