Nocardia asteroides infection typically presents with an abscess or multiple enhancing lesions, with neutrophilic pleocytosis in the cerebrospinal fluid.
The whole choroid fissure was clearly displayed as fissures full of cerebrospinal fluid on MRI.It go with choroid plexus of lateral ventricle congruously .
Right frontal encephalomalacia The frontal pole is largely replaced with the high signal of cerebrospinal fluid left after liquifaction necrosis in this old infarct.
Findings: Smooth midline cavity separating the frontal horns of the lateral ventricles (anterior to the foramen of Monro) and appearing isodense with cerebrospinal fluid.