Moreover, his anemia remained well controlled without the need for monthly darbepoetin alfa injections. This case highlights the potential of deucravacitinib as a safe and effective treatment option for psoriasis patients with concurrent MDS. Given the emerging understanding of TYK2 as an oncogenic driver in myeloproliferative diseases, further studies are warranted to clarify the therapeutic implications of TYK2 inhibition in this patient population.