Petechiae and a Persistent Violaceous Nodule: A Presentation of Blastic Plasmacytoid Dendritic Cell Neoplasm to Dermatology

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare, highly aggressive CD4+ CD56+ hematopoietic malignancy. The cutaneous presentation is variable but often includes violaceous nodules. We present a rare case of BPDCN, which featured dermatological findings consisting of erythematous macu...

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Bibliographic Details
Main Authors: Madison Anzelc, Christina Druskovich, Austin Cusick, Matthew Franklin
Format: Article
Language:English
Published: Wiley 2025-01-01
Series:Case Reports in Dermatological Medicine
Online Access:http://dx.doi.org/10.1155/crdm/8628105
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Summary:Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare, highly aggressive CD4+ CD56+ hematopoietic malignancy. The cutaneous presentation is variable but often includes violaceous nodules. We present a rare case of BPDCN, which featured dermatological findings consisting of erythematous macules, petechiae, purpura, and a violaceous nodule. A skin biopsy and peripheral blood smear supported a diagnosis of BPDCN. With BPDCN favoring cutaneous involvement, we urge dermatologists to be aware of the possibility of a BPDCN diagnosis in patients who present with purpuric nodules and petechial skin findings, especially when it is not easily explainable by another pathology or medication.
ISSN:2090-6471