Jill had a large tumor, approximately 8cm oblong, in or near the speech center and extending large distances. Due to its size, it was not possible to tell what kind of tumor it was or where it started. As surgery progressed it became less possible to distinguish tumor tissue from brain tissue. Since the tumor’s size potentially affected critical speech, motion, and sensory (e.g. numbness) structures, the surgeon exercised a cautious conservative approach to tissue removal and stopped the surgery rather than risk critical brain structures.
Based on preliminary analysis, the surgeon believes that the tumor is low grade; that is, slow growing. However, he also feels it is too early to absolutely commit to this judgment because they do not have adequate tissue samples from all parts of the tumor.
A second surgery is planned for Tuesday afternoon with a full pathology team and an image guidance system, neither of which was available on Saturday. Another MRI is planned for Tuesday morning to support the image guidance system. (Earlier references to brain mapping were incorrect; no brain mapping is planned.) This will enable the surgeon to take as much tumor as possible, confidently. Following that, determination can be made regarding further therapy.