“…Regardless of the surgical technique, due to tumour locations, total resection is not always possible, particularly with "complex" tumours (giant tumours, multiple paragangliomas, malignant tumours, those with catecholamine secretion, or those with previous surgical or other therapies). Upon review of multiple series, such as those included in the review by Gottfried et al [15] (374 patients from 7 series) [4,6,18,[20][21][22][23], and excluding those that included more complex tumours, total resection has been achieved in about 85-96% of cases. Surgical resection rates for complex tumour rates are not quite as high, but still in the range of 83-86% [20,23].…”