2,994 results match your criteria: "Mastocytosis Systemic"

Hymenoptera venom allergy in children.

Ital J Pediatr

December 2024

Department of Health Sciences, University of Florence, Florence, 50139, Italy.

From a taxonomic point of view, Hymenoptera are subclassified into families: Apidae, including honeybees (Apis mellifera) and bumblebees (Bombus), and Vespidae, which, in turn, are divided into the subfamilies of Vespinae (wasps, including hornets, vespules, dolichovespules) and Polistinae (paper wasp). Hypersensitivity to Hymenoptera venom can be linked to immunological (IgE-mediated or non-IgE-mediated) and non-immunological mechanisms. Reactions are classified into local reactions, large local reactions, systemic reactions, toxic reactions, and unusual reactions.

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Already a rare presentation in patients with systemic mastocytosis (SM), chronic diarrhea is even rarer in those with mast cell leukemia (MCL), a subtype of SM. We present a case to illustrate the utility of lower gastrointestinal endoscopy with histological examination in the diagnosis of MCL in a patient with chronic diarrhea. A woman in her 70s presented with persistent diarrhea.

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Systemic mastocytosis (SM) is a rare hematologic disorder characterized by clonal proliferation of mast cells in the bone marrow and/or other organs. SM-associated hematologic neoplasm (SM-AHN) is one of the advanced SM variants that usually confer a poor prognosis. We present a case of a 75-year-old female patient with SM-AHN, specifically myelodysplastic syndrome (MDS), that harbored a unique KIT mutation KIT V560D, not previously described in the literature in this setting.

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Ocular and palpebral manifestations of mastocytosis: A prospective single-center study.

Ann Dermatol Venereol

November 2024

Departement of Dermatology, Hôpital Privé Francheville, Périgueux, France. Electronic address:

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Osteoporosis in Systemic Mastocytosis: A Scoping Review.

Medicina (Kaunas)

October 2024

Precision Medicine in the Medical, Surgical and Critical Care Areas, University of Palermo, 90100 Palermo, Italy.

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Thromboelastography for rapid diagnosis of heparin-like anticoagulant release during anaphylaxis-induced coagulopathy in systemic mastocytosis: a case report.

Clin Med (Lond)

November 2024

King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia; Department of Medicine King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia.

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Demographics, Types of Patient-Reported Allergic Diseases, and Anaphylaxis in Mastocytosis: A Single-Center US Experience.

J Allergy Clin Immunol Pract

November 2024

Department of Internal Medicine, Allergy and Clinical Immunology, University of Michigan, Ann Arbor, Mich. Electronic address:

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Patient-Reported Burden of Indolent Systemic Mastocytosis in a Managed Care Organization.

J Allergy Clin Immunol Pract

October 2024

Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, Calif.

Article Synopsis
  • Indolent systemic mastocytosis (ISM) is the most common form of systemic mastocytosis, and its diagnostic challenges and impact on patients' lives need more examination.
  • A survey of 40 adults with ISM revealed a lengthy diagnosis process, averaging over two years, with many patients experiencing severe symptoms that negatively affected their quality of life and work ability.
  • The study found a strong correlation between symptom severity and physical/mental health scores, highlighting that those with moderate to severe symptoms suffered significantly more from skin and gastrointestinal issues compared to those with mild symptoms.
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Detection of Mutations in Systemic Mastocytosis: How, When, and Why.

Int J Mol Sci

October 2024

Department of Clinical and Biological Sciences, University of Turin, Mauriziano Hospital, 10128 Turin, Italy.

Article Synopsis
  • * The most common mutation is p.D816V, but there are other less frequent mutations that are typically undetectable with standard testing methods.
  • * New, more sensitive detection methods are being developed, and the review discusses how to approach these tests for diagnosing and monitoring mastocytosis patients.
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Altered B-cell, plasma cell, and antibody immune profiles in blood of patients with systemic mastocytosis.

J Allergy Clin Immunol

October 2024

Cancer Research Center, Department of Medicine and Cytometry Service, University of Salamanca, Salamanca, Spain; Biomedical Research Institute of Salamanca, Salamanca, Spain; Biomedical Research Networking Center Consortium, Madrid, Spain; Spanish Network on Mastocytosis, Toledo and Salamanca, Spain. Electronic address:

Article Synopsis
  • Systemic mastocytosis (SM) is a complex disease linked to abnormal mast cells that release mediators affecting the immune environment.
  • The study aimed to explore the blood profiles of B-cells, plasma cells, and antibody types in 108 SM patients compared to healthy individuals.
  • Results showed increased immature B-cells and elevated IgM and IgD levels in SM patients, alongside decreased plasma cells across various IgH types, with unique immune patterns based on the SM subtype.
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[Report of six cases with mast cell leukemia and a literature review].

Zhonghua Nei Ke Za Zhi

October 2024

Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, the First Affiliated Hospital of Soochow University, Suzhou 215006, China.

Article Synopsis
  • A retrospective analysis of six patients with acute mast cell leukemia (MCL) at Soochow University revealed a median age of 54, with various clinical presentations such as hypoalbuminemia, fatigue, and fever, highlighting the complexity of this rare disease.
  • Most patients displayed significant abnormalities in specific proteins (CD117, CD30, CD25, CD2) and gene mutations, indicating aggressive disease characteristics and a need for better diagnostic criteria.
  • Treatment outcomes were poor, with some patients receiving various therapies like venetoclax and cladribine, but only one achieved partial remission; this emphasizes the urgent need for improved understanding and treatment approaches for MCL.
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Article Synopsis
  • * A 32-year-old male patient experienced recurrent severe allergic reactions (anaphylaxis) and high levels of a substance called tryptase, which indicates mast cell issues, despite not having visible skin symptoms.
  • * The condition is rare but can be serious and presents with unusual signs, highlighting the need for better diagnostic methods and treatment options to improve understanding and patient outcomes.
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Article Synopsis
  • Tryptase is a key biomarker for diagnosing severe allergic reactions like anaphylaxis and is also important in assessing other mast cell-related conditions.
  • The paper highlights two clinical cases to demonstrate the significance of timely measuring serum tryptase during hypersensitivity reactions and emphasizes its broader clinical uses.
  • A detailed literature review identified crucial guidelines for interpreting serum tryptase levels, suggesting that elevated levels indicate a higher risk for severe reactions and necessitate further investigation and management.
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Article Synopsis
  • Advanced systemic mastocytosis (AdvSM) is a complex condition linked to poor outcomes, and while midostaurin is the first approved treatment, its long-lasting effectiveness is limited.
  • Various prognostic scoring systems like MARS, IPSM, and GPSM have been developed to assess patients' outcomes, but it's essential to tailor these scores to specific AdvSM subtypes for better accuracy.
  • A study of patients treated with midostaurin revealed that MARS and AdvSM subtype significantly predict overall survival, identifying five distinct patient subgroups with varying median survival times, highlighting the need for personalized management strategies.
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