Reticulohistiocytoma
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Reticulohistiocytoma Overview

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Learn About Reticulohistiocytoma

What is the definition of Reticulohistiocytoma?
Reticulohistiocytoma (RH) is a rare benign lesion of the soft tissue. It belongs to a group of disorders called non-Langerhans cell histiocytosis and is a type of reticulohistiocytosis, all of which are types of histiocytosis. Histiocytosis is a condition in which there is rapid production (proliferation) of histiocytes (immune cells) in the skin or soft tissues. The stimulus that causes the immune system to react in RH is currently not well understood. RH present as a yellow to reddish-brown smooth surfaced, firm nodule or lesion on the trunk and/or extremities of the body. Historically, RH has been found in young adults, with a slightly higher incidence in males.
What are the alternative names for Reticulohistiocytoma?
  • Reticulohistiocytoma
  • Solitary histiocytoma
  • Solitary reticulohistiocytosis
Who are the top Reticulohistiocytoma Local Doctors?
Elite in Reticulohistiocytoma
Dr. Kim E. Nichols
Hematology | Oncology
Elite in Reticulohistiocytoma
Dr. Kim E. Nichols
Hematology | Oncology

ETSU Pediatrics- St. Jude's Clinic

400 N State Of Franklin Rd, Fl 1, 
Johnson City, TN 
423-431-3950
Languages Spoken:
English
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. Dr. Nichols is rated as an Elite provider by MediFind in the treatment of Reticulohistiocytoma. Her top areas of expertise are Hemophagocytic Lymphohistiocytosis, Non-Langerhans-Cell Histiocytosis, Histiocytosis, Reticulohistiocytoma, and Bone Marrow Transplant.

Melissa P. Wasserstein
Elite in Reticulohistiocytoma
Dr. Melissa P. Wasserstein
Pediatrics
Elite in Reticulohistiocytoma
Dr. Melissa P. Wasserstein
Pediatrics

The Children's Hospital At Montefiore

3415 Bainbridge Avenue, 
Bronx, NY 
718-741-2323
Languages Spoken:
English
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Melissa Wasserstein is a Pediatrics provider in Bronx, New York. Dr. Wasserstein is rated as an Elite provider by MediFind in the treatment of Reticulohistiocytoma. Her top areas of expertise are Acid Sphingomyelinase Deficiency (ASMD), Niemann-Pick Disease, Reticulohistiocytoma, and Splenomegaly.

 
 
 
 
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Jithma Abeykoon
Elite in Reticulohistiocytoma
Dr. Jithma Abeykoon
Hematology
Elite in Reticulohistiocytoma
Dr. Jithma Abeykoon
Hematology

MN - Cancer Hematology

200 1st St SW, 
Rochester, MN 
507-229-0068
Languages Spoken:
English
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Jithma Abeykoon is a Hematologist in Rochester, Minnesota. Dr. Abeykoon is rated as an Elite provider by MediFind in the treatment of Reticulohistiocytoma. His top areas of expertise are Histiocytosis, Waldenstrom Macroglobulinemia, Reticulohistiocytoma, Tissue Biopsy, and Bone Marrow Transplant.

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What are the latest Reticulohistiocytoma Clinical Trials?
Phase 2 Study of Tovorafenib (DAY101) in Relapsed and Refractory Langerhans Cell Histiocytosis
Phase 2 Study of Tovorafenib (DAY101) in Relapsed and Refractory Langerhans Cell Histiocytosis
Enrollment Status: Recruiting
Publish Date: February 12, 2026
Intervention Type: Procedure, Drug
Study Phase: Phase 2

Summary: This phase II trial tests the safety, side effects, best dose and activity of tovorafenib (DAY101) in treating patients with Langerhans cell histiocytosis that is growing, spreading, or getting worse (progressive), has come back (relapsed) after previous treatment, or does not respond to therapy (refractory). Langerhans cell histiocytosis is a type of disease that occurs when the body makes too ma...

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GammaGA: Study of the Prevalence of Acid Sphingomyelinase Deficiency Disease (ASMD) and Gaucher Disease in Patients With Monoclonal Gammopathies and/or Multiple Myeloma
GammaGA: Study of the Prevalence of Acid Sphingomyelinase Deficiency Disease (ASMD) and Gaucher Disease in Patients With Monoclonal Gammopathies and/or Multiple Myeloma
Enrollment Status: Recruiting
Publish Date: February 11, 2026

Summary: The study of splenomegaly, and the follow-up of splenectomized patients, is one of the causes of referral of these patients to pediatric gastroenterology and oncohematology clinics, and adult internal medicine and hematology. The study and management of splenomegaly is well described among the different medical specialties to which these patients arrive. After the application of the different algo...

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Published Date: May 02, 2022
Published By: Genetic and Rare Diseases Informnation Center