González-Ruiz C A, Isla A, Pérez-Higueras A, Blázquez M G
Service of Neurosurgery, Hospital Infantil La Paz, Madrid, Spain.
Pediatr Radiol. 1990;20(4):283-4. doi: 10.1007/BF02019668.
We report an unusual case of cerebral hydatid cyst which was found with CT. Unenhanced CT showed a hyperdense, not calcified, ring surrounding the cyst cavity. This has never been reported before. We propose a possible explanation for such abnormal behaviour.