Anesthesia for Caesarean Section in a Parturient Carrying a Tumor of the Clivus

Chordomes are rare mesenchymal tumours of young adults, developed from the remains of notochord. Chordomes of the clivus are histologically benign tumours, but with local malignancy. They represent 0.1 to 0.2% of intracranial tumours and 40% of spheno-occipital tumours. Chordoma is a rare primary bone tumour, and accounts for 1-4% of malignant bone tumours [1] [2]. It is a low-grade malignant tumour with notochordal differentiation [1]. It has a maximum incidence between 50 and 60 years and a male predominance (sex-ratio of 2-3: 1). The child is rarely affected, with in this case a female predominance [3] [4] It is a locally aggressive, slowgrowing tumour. It has high potential for local recurrence and low metastatic potential