Oral Lymphoproliferative Disorders Kristin K. McNamara Carl M. Allen INTRODUCTION Lymphoproliferative diseases (LPDs) that affect the oral region are incredibly diverse. The clinicopathologic spectrum ranges from reactive lymphoid hyperplasia to…
Intralymphatic Histiocytosis and Melkersson–Rosenthal Syndrome Andrea P. Moy Louis P. Dehner Rosalynn M. Nazarian INTRALYMPHATIC HISTIOCYTOSIS Definition Intralymphatic histiocytosis is a rare disorder that is characterized by a proliferation of…
Histiocytic and Dendritic Cell Sarcomas Archana Shenoy Louis P. Dehner INTRODUCTION The subject of histiocytic lesions of the skin is a topic usually dominated by Langerhans cell histiocytosis and juvenile…
Reticulohistiocytoma and Reticulohistiocytosis Jacob R. Bledsoe Louis P. Dehner Rosalynn M. Nazarian DEFINITION Reticulohistiocytoma (RH) (solitary epithelioid histiocytoma) is a rare cutaneous histiocytic proliferation of unknown etiology that typically presents…
Non-Langerhans Cell Histiocytoses Andrea P. Moy Louis P. Dehner Rosalynn M. Nazarian JUVENILE AND ADULT XANTHOGRANULOMA Introduction Juvenile and adult xanthogranuloma are benign proliferations of non-Langerhans histiocytes. The juvenile xanthogranuloma…
Rosai–Dorfman Disease Joseph R. Kallini M. Yadira Hurley DEFINITION Rosai–Dorfman disease (RDD), also referred to as Destombes–Rosai–Dorfman syndrome, is a benign proliferative disorder of histiocytes. It is also termed sinus…
Benign and Malignant Langerhans Cell Proliferations Jacob R. Bledsoe Louis P. Dehner Rosalynn M. Nazarian DEFINITION Langerhans cell histiocytosis (LCH) is a clinically heterogeneous disorder characterized by a clonal proliferation…
Mast Cell Neoplasms Jonathan J. Davick Catherine G. Chung Liaqat Ali MASTOCYTOMA Definition A form of cutaneous mastocytosis characterized by the presence of one or a few solitary cutaneous tumors…
Methods of Safe Handling of Radionuclides and Pertaining Rules and Regulations Any use of radionuclides is fraught with the danger of inadvertently exposing an individual to radiation, and therefore to…
Schnitzler Syndrome Viktoryia Kazlouskaya Jacqueline M. Junkins-Hopkins INTRODUCTION Schnitzler syndrome (SchS) is a rare and often underreported chronic multisystem disorder, diagnosed on the basis of the presence of two major…
