The clinical manifestations of the disease, its course and response to the therapy were typical of the inflammatory state in the eye. However, magnetic resonance imaging suggested the presence of an intraocular tumour. Immunoscintigraphic studies using technetium-labelled antimelanoma antibodies initially and 9 months later yielded positive results with the increasing antibody titer. Fine-needle aspiration biopsy did not reveal the presence of neoplastic cells. The eyeball was removed due to a chronic inflammatory process and loss of vision. Histopathological examination demonstrated a tumour-like lesion with the signs of inflammatory infiltration without mitotic activity.