González-Ramos, J Gastric mucosa-associated lymphoid tissue lymphoma in a patient with severe psoriasis receiving ustekinumab. [electronic resource] - Actas dermo-sifiliograficas May 2015 - 326-7 p. digital Publication Type: Case Reports; Letter ISSN: 1578-2190 Standard No.: 10.1016/j.ad.2014.05.010 doi Subjects--Topical Terms: AgedAntirheumatic Agents--adverse effectsDisease SusceptibilityHumansImmunocompromised HostImmunosuppressive Agents--adverse effectsLymphoma, B-Cell, Marginal Zone--etiologyMaleMethotrexate--therapeutic usePUVA TherapyPsoriasis--complicationsStomach Neoplasms--etiologyUstekinumab--adverse effects