ESTRO 2024 - Abstract Book

S1394

Clinical - Head & neck

ESTRO 2024

and skin (N = 3). Of the 33 patients, 21 (64 %) had tumors that were genetically related. Twelve patients (36 %) had no shared genetic relationship between their primary HNSCC and the presumed distant metastasis.

Conclusion:

Approximately one-third of patients with suspected distant metastases from HNSCC lack a genetic relationship with the primary tumors. This implies a substantial risk of misclassification, potentially inflating the reported incidence of distant metastases for HNSCC.

Keywords: Distant metastasis, gene-expression profiling

2344

Digital Poster

IMRT for Nasopharyngeal Carcinoma: Staging-Driven Analysis of Side Effects and Survival Rates

Orges Spahiu 1 , Erion Lika 2 , Enxhi Abdiu 3

1 Mother Teresa University Hospital Center, Radiation Therapy Unit, Tirana, Albania. 2 Regional Hospital Durres, Oncology Service, Durres, Albania. 3 Mother Teresa University Hospital Center, Oncology Service, Tirana, Albania

Purpose/Objective: