Litcius/Paper detail

Kaposi sarcoma in a patient treated with upadacitinib for rheumatoid arthritis

Cynthia Fournier, Maxwell Sauder, Zaid Saeed Kamil, Marcus O. Butler

2023JAAD Case Reports10 citationsDOIOpen Access PDF

Abstract

Upadacitinib is a Janus kinase (JAK) inhibitor that inhibits JAK1. It is approved for rheumatoid arthritis, psoriatic arthritis, atopic dermatitis, and ulcerative colitis. Kaposi sarcoma (KS) is a neoplasm of lymphatic endothelium-derived cells infected by human herpesvirus 8 (HHV-8).1 KS is subdivided into the following 4 clinical variants: classic, African endemic, because of iatrogenic immunosuppression, and associated with AIDS.1 Many immunosuppressants have been reported to trigger KS. To our knowledge, we report the first case of KS induced by upadacitinib.

Topics & Concepts

MedicineRheumatoid arthritisJanus kinaseImmunosuppressionPsoriatic arthritisDermatologyTofacitinibSarcomaJanus kinase inhibitorUlcerative colitisImmunologyInternal medicinePathologyCytokineDiseaseViral-associated cancers and disordersLymphoma Diagnosis and TreatmentAutoimmune and Inflammatory Disorders Research