National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Multicentric reticulohistiocytosis



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Multicentric reticulohistiocytosis is a disease that is characterized by the presence of papules and nodules and associated with arthritis mutilans.[1] The disease can involve the skin, the bones, the tendons, the muscles, the joints, and nearly any other organ (e.g., eyes, larynx, thyroid, salivary glands, bone marrow, heart, lung, kidney, liver, gastrointestinal tract). In the majority of cases, the cause of multicentric reticulohistiocytosis is unknown; however, it has been associated with an underlying cancer in about one fourth of cases, suggesting that it may be a paraneoplastic syndrome.[2][3]
Last updated: 9/28/2012

The main symptoms of multicentric reticulohistiocytosis are arthritis and red to purple skin nodules varying in size from 1 to 10 mm. The nodules can be found on any part of the body but tend to concentrate on the face and hands and decrease in number from head to toe.[2][4] The arthritis is most often symmetrical and polyarticular (affecting many joints). Unlike adult rheumatoid arthritis, it does not spare the joints closest to the fingertips. It can be severely destructive, and in one third of cases it progresses to arthritis multilans. Further history reveals that approximately one third of patients complain of symptoms such as fever, weight loss, and malaise; less often, pericarditis and myositis are present.[2][4]

The clinical presentation of multicentric reticulohistiocytosis is insidious in onset and begins with arthritic complaints in approximately two thirds of patients.  It is potentially one of the most rapidly destructive forms of arthritis. Joint involvement remits and relapses, gradually worsening into a debilitating and permanent arthritis multilans.  The severity of the damage has been reported to be related to the age of onset; therefore, the earlier one has symptoms, the more severe the symptoms tend to be.  Like the associated arthritis, skin lesions tend to wax and wane until the disease spontaneously resolves, but may leave permanent disfigurement.[4]

Last updated: 6/21/2013

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

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Medical Terms Other Names
Learn More:
HPO ID
80%-99% of people have these symptoms
Arthritis
Joint inflammation
0001369
Histiocytosis 0100727
Skin nodule 0200036
5%-29% of people have these symptoms
Cachexia
Wasting syndrome
0004326
Fever 0001945
Muscle weakness
Muscular weakness
0001324
Showing of 6 |
Last updated: 7/1/2020

Dermatologists and rheumatologists are often the types of specialists that oversee the treatment of patients with multicentric reticulohistiocytosis. Although no specific therapy has consistently been shown to improve multicentric reticulohistiocytosis, many different drugs have been used.[3] For instance, therapy with non-steroidal anti-inflammatory agents (e.g., aspirin or ibuprofen) may help the arthritisSystemic corticosteroids and/or cytotoxic agents, particularly cyclophosphamide, chlorambucil, or methotrexate, may affect the inflammatory response, prevent further joint destruction, and cause skin lesions to regress. Antimalarials (e.g., hydroxychloroquine and mefloquine) have also been used. Alendronate and other bisphosphonates have been reported to be effective in at least one patient and etanercept and infliximab have been effective in some.[5]
Last updated: 6/21/2013

After an average course of 8 years, patients often go into remission (a state where symptoms have subsided). The disease can cause considerable morbidity (disability as a result of the disease), mainly related to the occurrence of severe arthritis. The arthritis can come and go, but it can be very severe in about 45% of cases.[3] If the patient has an associated cancer, the prognosis relates to that of the specific cancer.[5]
Last updated: 6/21/2013

Related diseases are conditions that have similar signs and symptoms. A health care provider may consider these conditions in the table below when making a diagnosis. Please note that the table may not include all the possible conditions related to this disease.

Conditions with similar signs and symptoms from Orphanet
The differential diagnosis should include leprosy, rheumatoid arthritis, xanthogranulomas, lymphomas, sarcoidosis, Urbach-Wiethe disease, Farber disease and dermatomyositis (see these terms).
Visit the Orphanet disease page for more information.

Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.

Patient Registry

  • A registry supports research by collecting of information about patients that share something in common, such as being diagnosed with Multicentric reticulohistiocytosis. The type of data collected can vary from registry to registry and is based on the goals and purpose of that registry. Some registries collect contact information while others collect more detailed medical information. Learn more about registries.

    Registries for Multicentric reticulohistiocytosis:
    International Rare Histiocytic Disorders Registry (IRHDR)
     

Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease

Social Networking Websites


These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

Where to Start

  • DermNet NZ is an online resource about skin diseases developed by the New Zealand Dermatological Society Incorporated. DermNet NZ provides information about this condition.

In-Depth Information

  • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Multicentric reticulohistiocytosis. Click on the link to view a sample search on this topic.

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  • I am in contact with people from around the world with MRH through Facebook.  Many of us have intermittent itching. Can you address this issue? Thank you. See answer



  1. Chakravarty EF, Genovese MC. Chapter 111 -- Musculoskeletal Syndromes in Malignancy. Harris: Kelley’s Textbook of Rheumatology, 7th ed.. Philadelphia, PA: W.B. Saunders Company; 2005;
  2. West SG. Chapter 297 -- Systemic Diseases in Which Arthritis is a Feature. Goldman: Cecil Textbook of Medicine, 23rd ed.. Philadelphia, PA: Saunders Elsevier; 2008;
  3. Rapini RP, Morgan LT. Dermatologic Manifestations of Multicentric Reticulohistiocytosis . Medscape Reference . June 6, 2012; http://emedicine.medscape.com/article/1058248-overview. Accessed 9/28/2012.
  4. Hsiung et al.. Multicentric reticulohistiocytosis presenting with clinical features of dermatomyositis. Journal of the American Academy of Dermatology. 2003;
  5. Callen JP. Multicentric Reticulohistiocytosis. Medscape Reference. August 16, 2011; http://emedicine.medscape.com/article/283885-overview. Accessed 9/28/2012.