Psoriasis is a chronic immune-mediated inflammatory condition and is considered a potential risk factor for the development of hematologic malignancies, particularly in the context of immunosuppressive therapy and T-cell dysfunction. B-cell non-Hodgkin lymphomas are neoplasms of the lymphatic system with variable clinical manifestations, most commonly presenting with peripheral lymphadenopathy. Primary localization in the soft tissues of the head, with bone invasion, is rare.