Erschienen in:
05.09.2017 | Case Report - Brain Tumors
Differentiating brain radionecrosis from tumour recurrence: a role for contrast-enhanced ultrasound?
verfasst von:
Luca Mattei, Francesco Prada, Marcello Marchetti, Paola Gaviani, Francesco DiMeco
Erschienen in:
Acta Neurochirurgica
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Ausgabe 12/2017
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Abstract
Differentiating radionecrosis from tumour recurrence is a major issue in neuro-oncology. Conventional imaging is far from being validated as an alternative to histological assessment. We report the case of a patient operated on for suspected recurrence of brain metastasis 9 months after cyberknife radiosurgery. While magnetic resonance imaging showed strong enhancement of the lesion, intraoperative contrast-enhanced ultrasonography (CEUS) surprisingly did not—different from what is expected for brain metastases. Histopathological examination documented radionecrosis. For the first time, we describe radionecrosis with CEUS; further investigation is needed; however, the lack of enhancement could represent an important hallmark in differential diagnosis with neoplastic tissue.