Skip to content
How It Works
Explore
Resources Ask a Question
Who It's For
Patients
Decode results, prep for appointments, weigh options.
Caregivers & advocates
Carry the research load for someone you love.
Providers & clinicians
Resources for patients in your practice.
Log In Ask a Question
PubMed This is a summary of 16 peer-reviewed journal articles Updated
Hematology

Building Your Care Team for Systemic Mastocytosis

At a Glance

Systemic mastocytosis (SM) requires a multidisciplinary care team because it affects multiple organ systems. A typical team includes a hematologist or oncologist to treat the underlying disease, alongside allergists, dermatologists, and gastroenterologists to manage specific symptoms.

Because systemic mastocytosis (SM) is a rare disease that can affect almost every organ system, no single doctor can manage it alone. Optimal care requires a multidisciplinary team (MDT)—a group of specialists from different fields who collaborate to treat both the underlying disease and its wide-ranging symptoms [1][2][3].

The Essential Specialists

A well-rounded care team for SM typically includes the following specialists, each focusing on a different aspect of the disease:

  • Hematologist/Oncologist: Usually the “lead” doctor, especially for advanced forms of the disease. They focus on the bone marrow, monitor your KIT mutation levels, and oversee systemic treatments like targeted therapies (TKIs) [3][4].
  • Allergist/Immunologist: Focuses on the “mediator” symptoms caused by chemical release. They are experts in managing anaphylaxis, chronic itching, and flushing, and they prescribe medications like antihistamines and omalizumab [5][6].
  • Dermatologist: Given that skin symptoms (like urticaria pigmentosa) are often the most visible and uncomfortable part of SM, a dermatologist plays a crucial role. They help monitor skin lesions, distinguish between skin-only disease and systemic involvement, and offer specialized therapies for skin itching and cosmetic concerns [7][8].
  • Gastroenterologist: Essential if you experience chronic diarrhea, abdominal pain, malabsorption, or weight loss. They manage the heavy burden of “secretory diarrhea” and may perform endoscopies or colonoscopies to check if mast cells have infiltrated the lining of your digestive tract [9][10].
  • Hematopathologist: A behind-the-scenes expert who specializes in blood and bone marrow. They are the ones who look at your biopsy samples to confirm the diagnosis using the WHO 2022 criteria [3][11].

Vetting Your Medical Team

Because SM is rare, many local specialists may only see one or two cases in their entire career. It is vital to ensure your team has the specific expertise needed for this complex condition. Consider asking these three “vetting” questions when meeting a new specialist:

  1. “How many patients with systemic mastocytosis do you currently manage?” Experience matters in rare diseases. You want a doctor who is familiar with the nuances of the disease spectrum.
  2. “Are you familiar with the WHO 2022 diagnostic criteria and the importance of KIT D816V VAF?” This ensures the doctor is up-to-date on the most recent international standards for classification and molecular monitoring [3][11].
  3. “What is your experience with newer targeted therapies like avapritinib or midostaurin?” These medications have specific side-effect profiles and monitoring requirements that differ from standard chemotherapy [12][13].

Coordinating Your Care

In a multidisciplinary approach, communication is the most important factor. High-quality care often happens at Centers of Excellence—large academic hospitals that have dedicated mastocytosis clinics where all these specialists work together under one roof [14][3]. If you are being treated at a smaller local hospital, your doctors should be willing to consult with a specialist at one of these larger centers to coordinate your long-term plan [15][16].

Common questions in this guide

Which doctor should be the primary lead for treating systemic mastocytosis?
A hematologist or oncologist is typically the lead doctor for systemic mastocytosis, especially for advanced forms. They monitor your bone marrow, track KIT mutation levels, and oversee targeted systemic therapies.
Why do I need an allergist for systemic mastocytosis?
Allergists and immunologists manage the symptoms caused by the release of chemicals from mast cells. They specialize in treating anaphylaxis, flushing, and chronic itching using medications like antihistamines.
How do I know if my doctor has enough experience treating systemic mastocytosis?
Since SM is a rare disease, ask potential specialists how many mastocytosis patients they currently manage and if they use the WHO 2022 diagnostic criteria. Experience with newer targeted therapies is also a strong indicator of their expertise.
What is a Systemic Mastocytosis Center of Excellence?
A Center of Excellence is a large academic hospital with a dedicated mastocytosis clinic. At these centers, hematologists, allergists, and other specialists work together under one roof to coordinate your long-term care plan.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Which of my doctors is the primary 'quarterback' for my care, and how do you all communicate with each other?
  2. 2.Are you familiar with the WHO 2022 diagnostic criteria and how it changes the classification of my specific subtype?
  3. 3.What is your experience in managing patients on targeted therapies like avapritinib or midostaurin?
  4. 4.How do you determine if a symptom should be treated by an allergist (mediator-related) or a hematologist (disease-burden related)?
  5. 5.Do you have a relationship with a Mastocytosis Center of Excellence for second opinions or clinical trial access?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

References

References (16)
  1. 1

    Pathogenesis and Pathology of Mastocytosis.

    Metcalfe DD, Mekori YA

    Annual review of pathology 2017; (12()):487-514 doi:10.1146/annurev-pathol-052016-100312.

    PMID: 28135563
  2. 2

    Review and Updates on Systemic Mastocytosis and Related Entities.

    Li JY, Ryder CB, Zhang H, et al.

    Cancers 2023; (15(23)) doi:10.3390/cancers15235626.

    PMID: 38067330
  3. 3

    NCCN Guidelines® Insights: Systemic Mastocytosis, Version 3.2024.

    Gotlib J, Gerds AT, Abdelmessieh P, et al.

    Journal of the National Comprehensive Cancer Network : JNCCN 2024; (22(2 D)).

    PMID: 38862005
  4. 4

    Management of Advanced Systemic Mastocytosis and Associated Myeloid Neoplasms.

    Tashi T, Deininger MW

    Immunology and allergy clinics of North America 2023; (43(4)):723-741 doi:10.1016/j.iac.2023.04.009.

    PMID: 37758409
  5. 5

    Management of indolent mastocytosis and mast cell activation syndrome: A clinical yardstick.

    Akin C, Butterfield JH, Castells M, Lyons JJ

    Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology 2025; (135(4)):466-477 doi:10.1016/j.anai.2025.06.032.

    PMID: 40592381
  6. 6

    Omalizumab Therapy for Mast Cell-Mediator Symptoms in Patients with ISM, CM, MMAS, and MCAS.

    Lemal R, Fouquet G, Terriou L, et al.

    The journal of allergy and clinical immunology. In practice 2019; (7(7)):2387-2395.e3 doi:10.1016/j.jaip.2019.03.039.

    PMID: 30954641
  7. 7

    Association of systemic mastocytosis with primary cutaneous marginal zone lymphoma; first case.

    Günay MB, Büyükbabani N, Yavuz AS, et al.

    Journal of the European Academy of Dermatology and Venereology : JEADV 2022; (36(4)):e275-e276 doi:10.1111/jdv.17797.

    PMID: 34753214
  8. 8

    Mastocytosis - pathogenesis, clinical manifestation and treatment.

    Wagner N, Staubach P

    Journal der Deutschen Dermatologischen Gesellschaft = Journal of the German Society of Dermatology : JDDG 2018; (16(1)):42-57 doi:10.1111/ddg.13418.

    PMID: 29314691
  9. 9

    Endoscopically diagnosed systemic mastocytosis.

    Valdivielso Cortázar E, Yáñez López JÁ, Veiga Barreiro JA

    Revista espanola de enfermedades digestivas 2019; (111(11)):892 doi:10.17235/reed.2019.6246/2019.

    PMID: 31657613
  10. 10

    Aggressive systemic mastocytosis with multiple organ involvement: a case report.

    Iranijam E, Salimi M, Negaresh M, Javanshir N

    Oxford medical case reports 2023; (2023(11)):omad095 doi:10.1093/omcr/omad095.

    PMID: 38033410
  11. 11

    The international consensus classification of eosinophilic disorders and systemic mastocytosis.

    Wang SA, Orazi A, Gotlib J, et al.

    American journal of hematology 2023; (98(8)):1286-1306 doi:10.1002/ajh.26966.

    PMID: 37283522
  12. 12

    New treatments for systemic mastocytosis in 2025.

    Costanzo G, Marzio V, Cavaglià E, et al.

    Current opinion in allergy and clinical immunology 2025; (25(4)):277-292 doi:10.1097/ACI.0000000000001079.

    PMID: 40471046
  13. 13

    Safety and efficacy of avapritinib in advanced systemic mastocytosis: the phase 1 EXPLORER trial.

    DeAngelo DJ, Radia DH, George TI, et al.

    Nature medicine 2021; (27(12)):2183-2191 doi:10.1038/s41591-021-01538-9.

    PMID: 34873347
  14. 14

    Clinical presentation and management practice of systemic mastocytosis. A survey on 460 Italian patients.

    Pieri L, Bonadonna P, Elena C, et al.

    American journal of hematology 2016; (91(7)):692-9 doi:10.1002/ajh.24382.

    PMID: 27060898
  15. 15

    Systemic Mastocytosis: State of the Art.

    Farmer I, Radia DH

    Current hematologic malignancy reports 2024; (19(5)):197-207 doi:10.1007/s11899-024-00737-8.

    PMID: 39187708
  16. 16

    Diagnosis and treatment of systemic mastocytosis in Brazil: Recommendations of a multidisciplinary expert panel.

    Velloso EDRP, Padulla GA, de Cerqueira AMM, et al.

    Hematology, transfusion and cell therapy 2022; (44(4)):582-594 doi:10.1016/j.htct.2022.04.006.

    PMID: 35688791

This page provides general information about building a multidisciplinary care team for systemic mastocytosis. It is not intended to replace professional medical advice, diagnosis, or treatment from your physicians.

Get notified when new evidence is published on Systemic mastocytosis.

We monitor PubMed for new peer-reviewed studies on this topic and email a short summary when something meaningful changes.