Marc Pocard, MD, PhD, Hospital Lariboisière Department of Visceral Cancer and Endocrine Surgery, Paris, France, discusses the limitations of CT scans in evaluating peritoneal carcinomatosis and the need for blood-based tests to assess disease progression and treatment response. Prof. Pocard notes that circulating tumor DNA (ctDNA), including specific mutations such as KRAS, is not yet a reliable solution, and that other options, such as tumor cells, are more challenging to develop and study, highlighting the need for a simple and cost-effective alternative. This interview took place at the 44th Congress of the European Society of Surgical Oncology (ESSO 44) in Gothenburg, Sweden.
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