There is growing interest in defining biomarkers that could predict response to different chemotherapeutic agents. Excision repair cross complement 1 (ERCC1) enzyme has been shown to predict benefit of cisplatin in different types of cancer. As cisplatin-based regimens are frequently used in the salvage treatment of diffuse large B-cell lymphomas (DLBCL), a small pilot study was conducted to determine whether ERCC1 is expressed in this disease or not. Out of seven patients examined, only one had a 25% ERCC1 expression, which could represent a tumour truly expressing this marker. However, expression was not able to predict response to treatment. It remains unclear whether ERCC1 could serve as a predictive marker for cisplatin in this disease requiring further studies. Key Words : ERCC1 -Large B-cell lymphoma -Cisplatin resistance.