Patients with neglect fail to report, respond to, or orient to stimuli presented on the opposite side of the brain lesion. Spatial neglect is a multi-componential syndrome and many of its symptoms and signs need specific testing to detect their different clinical manifestations. Given that neglect has a dramatic effect on the outcome of these patients, it is of paramount importance for accurate assessment all its manifestations. Thus, the purpose of this study is to assess visuo-spatial functions with a newly-built neuropsychological battery to determine the incidence of visuo-spatial disorders and spatial neglect in patients with right brain tumour. We tested 14 patients undergoing tumour resection, both pre-operatively and post-operatively. Pre-operatively, we found an incidence of 42.86% for visuo-spatial deficits and of 14.29% specifically for spatial neglect. This incidence increases post-operatively to 57.14% for visuo-spatial deficits and to 42.86% specifically for spatial neglect. The present study has important implications for a better knowledge of the spatial disorders in patients with right-brain tumour, thus providing a clearer picture on the everyday life problems faced by these patients, both within the family and in working contexts.