Imaging diagnosis of primary brain lymphoma

Primary central nervous system lymphoma, a rare incidence of primary intracranial tumors account for about 1%. In recent years, reported in the literature, whether it is normal or immune function in immune functions are defective upward trend, there are statistics for nearly 20 years by the incidence rate increased two-fold over the past 4 times. Wang Jianhua, etc. The study found the incidence of this disease aged 45 to 83 years, mean age was 53 years, more common in the elderly. No characteristic clinical manifestations, common manifestations were headache, dizziness, vomiting, slurring in speech, seizures and limb function disorders. 12 cases of patients, 8 cases of single and multiple in 4 cases. Lesions occurred mainly in the frontal, temporal lobe and basal ganglia, the majority of lesions were located near the midline of the brain parenchyma deep. All the B-cell non-Hodgkin's lymphoma.

Case imaging: CT scan showed massive patchy groups, etc., or slightly higher density of shadow, the edge of lesions clearly see the light or moderate lesions surrounding edema, mass effect more than a slight increase even after scanning, see lesions significantly enhanced the edge can be seen umbilical-like notch. MRI Performance: lesions in T1-weighted images Duocheng other signals, followed by low signal in T2-weighted images as the slightly resembles the signal, followed by, etc., or high signal. Injection of Gd DTPA enhanced scan, the lesions even strengthened, the edge can be seen umbilical-like notch. MRI showed edema of the tumor compared with CT clear, and the tumor was peripheral edema and tumor volume inconsistencies, tumor size larger and showed a slight or no peripheral edema.