Presentation
Incidental findings were noted during the workup for metastasis.
Patient Data
Age: 40 years
Gender: Male
From the case:
Ring artifact
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/145743/annotated_viewer_json?lang=us"}
A few concentric, alternating hypo- and hyperdense ring artefacts are observed in the brain parenchyma, centered on the left high parietal region, centrum semi-ovale, and thalamus. No mass effect is noted, and there is no midline shift.
Case Discussion
The current CT findings reveal ring artefacts, indicating a fault in the CT gantry as detailed.
A ring artifact is a phenomenon that occurs due to miscalibration or failure of one or more detectors in a CT scanner.
Unable to process the form. Check for errors and try again.