What are the treatment options for cancer of unknown primary?

Cancer of unknown primary means cancer has been found, but the organ where it began has not been identified after initial assessment. Doctors use scans, pathology and the distribution of disease to look for a likely origin and to understand how the cancer behaves. A PET-CT Scan may identify active areas that need further assessment. Genomic Tumour Profiling can examine tumour characteristics that may help guide medicine choices. Chemotherapy is one possible treatment when a suitable site-specific plan is not available, while radiation or surgery may help a particular painful, blocked or threatening area.

Keep copies of biopsy, scan and pathology reports and ask whether another specialist review would change the plan. Tell the team about pain, appetite, weight change, bowel or bladder symptoms, breathing problems and previous illnesses. Ask what the treatment is designed to achieve, how response will be checked and which supportive services are available. Treatment may be adjusted when new information identifies a likely origin or shows a different tumour pattern. Read about Cancer of Unknown Primary, PET-CT Scan, Genomic Tumour Profiling and Chemotherapy.

Get emergency help for severe breathlessness, chest pain, sudden confusion, new weakness, uncontrolled bleeding, collapse or severe pain that cannot be managed. During treatment, promptly report fever, repeated vomiting, inability to drink, new jaundice, rapidly worsening swelling or a sudden decline in alertness. Your oncology team should provide a direct number for treatment-related concerns.

What tests have been completed, and could any further scan or biopsy identify the primary site? Would genomic profiling alter my treatment? What is the aim of chemotherapy or local treatment? How will benefit and side effects be monitored? Which symptoms require a same-day call? Can palliative care, nutrition or pain support be involved alongside cancer treatment?