Spinal metastasis of medulloblastoma in adults: a case report.

Introduction: Medulloblastoma is a primitive neuro-ectodermal malignant tumor most commonly seen in childhood and rarely and uncommonly in adult age. Treatment consists of surgery followed by radiotherapy. In the case of a relapse there is no overall accepted treatment.

Falx chondroma with hyperostosis of the scull: a case report.

Introducion: Intracranial chondroma is a very rare, slow growing, benign cartilaginous tumor that arises usually from the base of the scull. Chondroma located at the falx is extremely rare. According to our best knowledge 15 cases of falx chondromas have been reported in the literature.

[Surgical treatment of Arnold-Chiari malformation type I in an adult patient].

Background: Herniation of the cerebellar tonsils through the foramen magnum into the cervical spinal canal with obliteration of the cerebellomedullary cistern is the primary feature of Arnold-Chiari type I malformation (ACM I). It is considered to be congenital malformation, although there have been reported cases of an acquired form.

Case Report: We presented a female patient, 45-year old, with ACM I without syringomyelia as a rare and unusual clinical image, as well as the effect of decompressive surgery in the treatment of this malformation.

Cyclin D1 immunoreactivity in meningiomas.

Objective: Cyclin D1 is an important nuclear protein required for progression of cells through the G1 phase of the cell cycle. The proliferative potential of meningiomas has been studied using various proliferative markers. However, there have been only few published studies evaluating Cyclin D1 immunoreactivity in meningiomas.

Huge extracranial asymptomatic frontal invasive meningioma: a case report.

Meningioma is a well-recognized tumor of the central nervous system, but it rarely appears as an extracranial tumor secondarily extended into the paranasal sinuses. Meningiomas arise from arachnoid cap cells that form the external membrane of the brain. Most meningiomas are slow growing and are usually not associated with substantial underlying brain edema; they cause symptoms by the compression of adjacent neural structures.