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Updated: May 7, 2026

Granulocyte-dependent Autoantibody-induced Skin Blistering
Published on: October 12, 2012
[A case of blastic plasmacytoid dendritic cell neoplasm involving the skin]
Shota Fukuoka1, Yoshitaka Miyakawa, Takahiro Suzuki
1Dept. of Gatroenterology, National Cancer Center Hospital East, Japan.
Insights
This case report details a rare blastic plasmacytoid dendritic cell tumor (BPDCN) in an 81-year-old male. The patient showed resistance to standard therapies, highlighting the need for novel treatment strategies for this aggressive cancer.
Area of Science:
- Hematology
- Oncology
- Dermatopathology
Background:
- Blastic plasmacytoid dendritic cell tumor (BPDCN) is a rare and aggressive hematologic malignancy.
- It typically presents as a distinct skin lesion or subcutaneous nodules.
Observation:
- An 81-year-old male presented with a subcutaneous tumor on his back.
- Skin biopsy revealed atypical cells in sub-epidermal and subcutaneous tissue.
- Diagnosis of BPDCN was confirmed by immunophenotyping (CD4+, CD56+) and absence of lymphoid gene rearrangements.
Findings:
- The patient's tumor relapsed after initial COP chemotherapy.
- Salvage therapies (CEPP, FMD) were ineffective.
- This indicates a poor response to conventional treatment regimens.
Implications:
- The rarity and aggressive nature of BPDCN necessitate further research into its pathogenesis.
- Standardized treatment protocols are lacking for BPDCN.
- This case underscores the need for exploring novel therapeutic approaches for refractory BPDCN.
Abstract:
A 81 year-old male patient visited our hospital on February, 2011 because he found the subcutaneous tumor on his back. The dermatologist performed skin biopsy and found that large atypical cells diffusely proliferated in the sub-epidermal and subcutaneous tissue. Two month later, we diagnosed him as blastic plasmacytoid dendritic cell tumor, as the blastic cells in the lymph node were CD4+, CD56+, CD3-, CD5-, CD20-, CD138-, MPO-, granzyme B-, TCL1+. None of the gene rearrangements of T-cell receptor and immunoglobulin was negative in the lymph node. The tumor was relapsed after 3 courses of COP therapy and the patient failed to respond to the salvage therapies such as CEPP and FMD therapy. As this tumor is rare and there are no standard regimens, we reviewed the past case series and discussed about the pathogenesis, clinical course and treatment options of this tumor in this article.
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