Abstract
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematologic malignancy arising from precursor dendritic cells. It is a rare and challenging clinical presentation. For decades, there has been no treatment course for managing BPDCN and its overall prognosis is poor. We report a 27-year-old man who was admitted to the hospital due to an orbital tumor as the first symptom. Progressive enlargement of the orbital tumor was accompanied by multiple purple circular nodules on the body trunk. Pathological confirmation of BPDCN after resection of the orbital mass. Bone marrow smear and flow cytometry on examination indicate AML-M5. Performance of chemotherapy and peripheral blood autologous stem cell transplantation. The clinical manifestations of blastic plasmacytoid dendritic cell neoplasms are diverse. The diagnosis of BPDCN can be difficult due to overlapping morphologic, immunophenotypic, and clinical features of other hematologic AML. Relapsed and refractory BPDCN remains an elusive therapeutic challenge. The future of new targeted therapeutic drugs is expected.
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