Case Report
Germano de Sousa Leão,
Abstract
Colorectal cancer (CRC) is the third most prevalent malignancy worldwide, and one of the most common causes of cancer-related deaths. The main tumor-related prognostic factor after surgical resection is initial pathologic staging and lymph node involvement is a major determinant of disease recurrence. The addition of adjuvant chemotherapy in stage III patients undergoing surgical resection decreases tumor recurrence by around 40% to 50%. However, a significant proportion of patients still experience systemic recurrence. In CRC, 18F-FDGfluorodeoxyglucose (18F-FDG-PET-CT) plays a key role in the detection of recurrent disease in post-therapy assessment of residual masses and patient staging before surgical resection of liver metastases. We report the case of a 52-year-old patient with stage III colorectal cancer, who underwent surgical resection and completed adjuvant chemotherapy, followed by imaging techniques (Fluorine-18-FDG PET-CT and magnetic resonance) mimicking early peritoneal and ovarian recurrence.