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Updated: Mar 26, 2026

An Efficient and High Yield Method for Isolation of Mouse Dendritic Cell Subsets
Published on: April 18, 2016
Histiocytic and Dendritic Cell Neoplasms
1Quest Diagnostics Nichols Institute, 14207 Newbrook Drive, Chantilly, VA 20153, USA.
Insights
This review covers dendritic cell (DC) tumors, including myeloid sarcoma and Langerhans cell neoplasms. It highlights their diverse features and origins, emphasizing precursor cell plasticity in these cancers.
Area of Science:
- Pathology
- Hematology
- Oncology
Background:
- Dendritic cells (DCs) are crucial immune cells with diverse subtypes, including myeloid-derived, plasmacytoid, and follicle-associated.
- Tumors arising from these DCs and related myeloid precursors present complex diagnostic challenges.
Purpose of the Study:
- To review the morphologic and immunophenotypic features of dendritic cell tumors and related neoplasms.
- To discuss the classification and diagnostic considerations for these rare malignancies.
Main Methods:
- Review of existing literature and case studies on dendritic cell neoplasms.
- Analysis of morphologic and immunophenotypic characteristics of various tumor types.
- Discussion of histogenetic relationships and precursor cell plasticity.
Main Results:
- Mature neoplasms include Langerhans cell histiocytosis and its sarcoma, and S100-negative histiocytic proliferations.
- Immature/precursor malignancies encompass myeloid/monocytic leukemias and blastic plasmacytoid dendritic cell neoplasm.
- Mesenchymal-type lymph node tumors, such as follicular dendritic cell sarcomas, are also discussed despite potential differences in origin.
Conclusions:
- Dendritic cell neoplasms exhibit a wide spectrum of features due to the plasticity of their non-neoplastic precursors.
- Accurate diagnosis requires careful integration of morphology, immunophenotype, and consideration of potential histogenetic origins.
Abstract:
This article reviews the features of dendritic cells (DCs) of myeloid-derived, plasmacytoid, and follicle-associated types and tumors of these cells, as well as myeloid sarcoma. The morphologic and immunophenotypic features in this group of neoplasms is featured, including mature neoplasms such as Langerhans cell histiocytosis, its malignant counterpart Langerhans cell sarcoma, and S100-negative histiocytic proliferations. More immature or precursor malignancies in this group include myeloid and monocytic leukemias presenting in extramedullary tissues as well as the newly codified blastic plasmacytoid dendritic cell neoplasm. Although likely not related histogenetically to myeloid-derived DCs, mesenchymal-type lymph node tumors including follicular dendritic cell and fibroblastic reticulum sarcomas are also discussed. All of these neoplasms can exhibit a range of immunophenotypic and morphologic features that underscore the plasticity of the non-neoplastic precursors from which they are derived.
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