X-ray examination in diseases of the cerebellum

X-ray diagnostics of pathological processes in the cerebellum is based on the calcification in tumor tissue, sometimes like a tree branching identified on the side of the x-ray of the skull (Fig. 7), and calcification in nonneoplastic lesions (tuberculoma, bruises, and so on). Another group of local characteristics due to the direct effects on adjacent bone is Uzury, thinning and destruction of bone tissue. Tumors of the posterior cranial fossa quite early cause occlusion in the rear of the communication ways and holes liquor system. So often in the bones of the cranial vault and in the Turkish saddle occur secondary changes, resulting from increased intracranial pressure, which on the localization process cannot be judged.

Fig. 7. Calcified tumors of the cerebellum. Typical shade tree of calcification in the material hemisphere of the cerebellum.

The big help in the differential diagnosis of tumors of cerebellar hemispheres have pneumoencephalography or pneumoencephalography without removal of CSF (see Encephalography). The main pneumographic signs of tumors of the posterior cranial fossa: 1) uniform internal hydrocephaly brain ventricles without deviations from the median of due sdavlennoy the back of communication paths outflow and holes in liquor system; 2) deformation of the different departments of the fourth ventricle an offset from the normal topographic location; 3) changes in the normal position, bending and length of the water supply system of the brain.
Tumors of the hemispheres of the brain characterized by the shift of the fourth ventricle to the side, protivopolojnoe the lesion; water supply of the brain can be shortened and elevated (Fig. 8).

Fig. 8. A tumor of the left hemisphere of the cerebellum. Offset deformed IV heart and brain plumbing right.

The tumor, primarily developing in the fourth ventricle, but not completely filling it, is determined on the basis of its sharp edges, jutting out into the lumen of the ventricle.
With contraindications to pneumoencephalography can be applied serial vertebral angiography. Incremental vascular network on angiograms indicates tumor process in the hemisphere of the cerebellum. To install the tumour localization in the hemisphere M can be based on the deviation from the normal location of arterial trunks in the area of the lesion. It is noted asymmetry and offset the cranial part of the vertebral artery, and basilar and cerebellar arteries in the opposite direction.