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Updated: Mar 13, 2026

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Histiocytic proliferations.

Sarangarajan Ranganathan1

  • 1Department of Pathology, Children׳s Hospital of Pittsburgh of UPMC, 4401 Penn Ave (Suite B260), Pittsburgh, Pennsylvania.

Seminars in Diagnostic Pathology
|October 11, 2016
PubMed
Summary
This summary is machine-generated.

Pepper Dehner

Keywords:
Hemophagocytic lymphohistiocytosisJuvenile xanthogranulomaLangerhans cell histiocytosisMalignant histiocytosisRosai–Dorfman disease

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Area of Science:

  • Pediatric Pathology
  • Histiocytic Lesions

Background:

  • Pepper Dehner has extensively researched histiocytic lesions for over 40 years.
  • His work includes seminal articles on Langerhans cell histiocytosis (LCH), atypical histiocytosis, malignant histiocytosis, and juvenile xanthogranuloma.
  • Dehner's contributions are also recognized in his chapters within a prominent Pediatric Pathology textbook.

Purpose of the Study:

  • To trace the evolution of understanding histiocytic syndromes.
  • To highlight recent advances and molecular insights in the classification of these diseases.
  • To honor Pepper Dehner's significant contributions to Pediatric Pathology.

Main Methods:

  • Review of historical and contemporary literature on histiocytic lesions.
  • Analysis of Pepper Dehner's published works and textbook contributions.
  • Synthesis of current knowledge including molecular data and recent advancements.

Main Results:

  • The article chronicles the progression of histiocytic lesion classification from descriptive to molecularly informed.
  • It underscores the foundational impact of Pepper Dehner's research on the field.
  • The journey reflects advancements in understanding prognostic features and disease categories.

Conclusions:

  • Pepper Dehner is recognized as a pivotal figure, the "Father of Modern Pediatric Pathology."
  • The field has advanced significantly through descriptive studies and molecular insights.
  • Continued research is essential for a comprehensive understanding of histiocytic syndromes.