Diffuse astrocytoma and the diagnostic dilemma of an unusual phenotype: A case report

Abstract

Diffuse astrocytoma is an infiltrating type of glioma (World Health Organization grade II), which even with histopathology, is difficult to diagnose. Magnetic resonance imaging (MRI) is the cornerstone for diagnoses and follow-up of brain gliomas. This report describes a case of diffuse astrocytoma in a 48-year-old man who presented with sudden right-sided weakness and repeated convulsive attacks. On brain computed tomography, the case was diagnosed and treated as an acute infarction. Ten days later, the patient returned with a total loss of consciousness. Brain MRI images revealed an irregularly outlined lesion involving the splenium of the corpus callosum that extended into the left periventricular parietal lobe of the brain with cystic foci in the septum pellucidum. Contrast-enhanced and new sequences of MRI was helpful in approach to diagnosis because of its superior tissue characterization. The histopathology results ultimately confirmed the diagnosis of diffuse astrocytoma. The patient died postoperatively.

Role of Magnetic Resonance Imaging in Evaluation of Non-Traumatic Spinal Lesions in Children

“…According to a research by Alshoabi et al [28] , the astrocytoma mostly displayed heterogeneous enhancement more in its margins in the contrast enhanced T1WIs. The septum pellucidum and splenium of the corpus callosum were both affected in the lesion, which seemed to be diffuse and infiltrative.…”