CT findings associated with blastic plasmacytoid dendritic c
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A growing number of case reports have provided a better understanding of the presentation and diagnosis of blastic plasmacytoid dendritic cell neoplasm (BPDCN), a rare but rapidly progressive and deadly hematologic malignancy. However, few cases have explored the radiologic features which may be observed on imaging of this disease. We present the computed tomography (CT) findings associated with a case of BPDCN and provide an imaging-focused review of this uncommon malignancy. The goal of this article is to increase recognition of a rare but deadly disease and highlight the radiologic findings that may be seen during its workup and management.

Case Report
A 53-year-old man presented to his physician following a blunt right knee injury. He subsequently developed a growing mass around the knee associated with pain and edema. He had no significant past medical history. Within 1 month, he noticed multiple, non-pruritic, erythematous skin lesions on the chest, trunk, and extremities. Lesions on the right knee and left thigh were biopsied and pathology revealed BPDCN. Malignant cells were strongly positive for CD4, CD43, CD56, CD123, and negative for EBER.

https://goo.gl/iJfiol
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