Neuroimaging of fractureless transforamen magnum penetrating injury of the cerebellum.

An unusual case of penetrating injury to the cerebellum by a foreign body is described. The authors recommend plain radiographs and computed tomography to rule out fractures of the skull vault and base and the upper cervical spine, as well as to ascertain the presence and location of foreign bodies. Magnetic resonance imaging is ideal for the follow-up assessment of brain damage.