%0 Case Reports
%T Therapy-Related Acute Promyelocytic Leukemia: A Case Report and a Review of Literature.
%A Foster D
%A Nair HK
%A Robbins K
%A Rajeh N
%J Cureus
%V 15
%N 7
%D 2023 Jul
%M 37593318
暂无%R 10.7759/cureus.42008
%X Acute promyelocytic leukemia (APL) is a subgroup of acute myeloid leukemia (AML), and while not a common form of cancer, it does make up a modest portion of acute leukemia. The genetic hallmark of APL is the t(15;17)(q24.1;q21.2) promyelocytic leukemia/retinoic acid receptor alpha (PML/RARA) protein. We present the case of a patient who had undergone prior therapy for stage IIIC squamous cell carcinoma of the anorectal region with 5-fluorouracil, mitomycin C, and radiation and developed therapy-related acute promyelocytic leukemia about 18 months later. We also review the clinical features and management of APL while also highlighting that therapy-related APL, although uncommon, can develop from chemoradiation. The specific diagnosis of therapy-related APL is its own distinct diagnosis, but its treatment remains the same as primary APL.