摘要
Hairy cell leukemia(HCL)is a rare B-cell lymphoproliferative disorder.Patients typically present with cytopenia and splenomegaly.We describe the case of a 78-year-old patient with refractory HCL who acutely developed a cystic lesion on the back while receiving moxetumomab pasudotox therapy.Biopsy of the lesion revealed the presence of adenocarcinoma,which prompted a detailed evaluation resulting in a diagnosis of stage IV gastric cancer.Nevertheless,to establish any association between moxetumomab pasudotox therapy and secondary cancer development,a satisfactory number of studies need to be conducted.
