ABSTRACT
In the management of skull base chordomas, surgical treatment is essential to achieve
long-term control. A petroclival chordoma growing laterally in the skull base is one
of the most challenging tumors for neurosurgeons. We have treated petroclival chordomas
based on the principle of maximal surgical resection of the tumor with minimal morbidity.
Lateral skull base approaches were used to approach petroclival chordomas in eight
patients. The surgical procedure involved removal of soft tumor tissue and extensive
drilling of adjacent bony structures. Gross total resection of the tumor was achieved
in six patients. Subtotal resection in the remaining two patients was associated with
acceptable morbidity. In cases of petroclival chordomas, lateral skull base approaches
can be used as a primary procedure, although those approaches may be associated with
high rates of morbidity and mortality.
KEYWORDS
Chordoma - petrous bone - skull base - transpetrosal approach
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Kenji OhataM.D.
Department of Neurosurgery, Osaka City University Graduate School of Medicine
1-4-3 Asahi-machi, Abeno-ku, Osaka 545-8585, Japan
eMail: kohata@med.osaka-cu.ac.jp