Four-case Report of Upadacitinib as an Alternative Treatment for Patients With Recalcitrant Pyoderma Gangrenosum F.J. Melgosa Ramos, R. García-Ruíz, A. Aguado Vázquez, P. Mercader-García

Concomitant Pyoderma Gangrenosum and Erythema Nodosum in a Patient With Ulcerative Colitis N. Kikuchi, N. Matsumura, T. Hiraiwa, Y. Kato, M. Satoh, T. Yamamoto

A Case of Pyoderma Gangrenosum-Like Ulcers Progressing into Neutrophilic Panniculitis in a Patient With Myelodysplastic Syndrome K. Irie, T. Yamamoto