Emergency: If you have chest pain, sudden or severe shortness of breath, loss of consciousness, stroke‑like symptoms (weakness or sudden changes in speech/vision), severe uncontrolled bleeding, or a sudden severe headache, seek emergency care immediately. General summary: Management of a suspected residual cancer focus after surgery and chemotherapy requires a personalized, multidisciplinary evaluation led by Medical Oncology. Key inputs are the pathology report (tumor stage, lymph node status), surgical margin status (R0 vs R1), recent imaging (CT, PET‑CT), molecular biomarkers (for example HER2, MSI/MMR, PD‑L1) and your overall fitness. Possible approaches include re‑operation (if margins are positive or resection is feasible), local radiotherapy or chemoradiotherapy, consideration of targeted therapy or immunotherapy when supported by biomarker results, or close imaging surveillance. Which option is most appropriate depends on a risk–benefit assessment by a multidisciplinary tumor board led by Medical Oncology. Supportive steps outside emergencies: low‑risk measures such as adequate rest, maintaining fluid intake, nutritional support and symptom monitoring can help while decisions are being made. Report any new or worsening symptoms to your medical team. What to bring to your appointment: pathology and operative reports, recent imaging reports, biomarker test results, and a summary of prior treatments with dates. A multidisciplinary review will decide which additional tests or specialists (Medical Oncology, Radiation Oncology, General Surgery, Radiological/Nuclear Medicine, Pathology) are needed. This page is general information and is not a substitute for individualized medical advice. Discuss definitive decisions with your oncology team.