MR imaging - an unreliable and potentially misleading diagnostic modality in patients with intracerebral calcium depositions. Case report.

Background: Since magnetic resonance imaging (MRI) is a method of choice for establishing the correct diagnosis in a great majority of neurologic disorders, especially in detection the causes of seizures and both acute and slowly progressive neurologic disturbances, computerized tomography is becoming more frequently excluded from obligate spectrum of diagnostic protocol.

Methods: MRI was performed on 1.5 T MR scanner in two patients, in one suffering from pseudohypoparathyroidism, and in another with Fahr disease, while CT was initially excluded from the diagnostic protocol.