Review and Updates on Systemic Mastocytosis and Related Entities.

Area of Science:

• Hematology
• Oncology
• Immunology

Background:

• Mast cell disorders encompass a spectrum from benign conditions to aggressive neoplasms.
• Mastocytosis, characterized by abnormal mast cell accumulation, is often driven by KIT mutations.
• Systemic mastocytosis (SM) presents diverse clinical manifestations and outcomes.

Purpose of the Study:

• To provide an updated overview of mast cell disorders, focusing on systemic mastocytosis (SM).
• To highlight the latest diagnostic criteria, prognostic stratification, and management approaches for SM.
• To emphasize the importance of recognizing diverse clinical presentations for timely diagnosis.

Main Methods:

• Review of current literature and classification systems (WHO 5th edition, ICC).
• Integration of morphologic, immunophenotypic, and molecular findings for SM diagnosis.
• Analysis of clinical signs, symptoms, and patient outcomes.

Main Results:

• Updated classification of systemic mastocytosis (SM) into distinct subtypes.
• Emphasis on diagnostic integration of multi-faceted findings.
• Recognition of the broad clinical spectrum of mast cell disorders.

Conclusions:

• Accurate diagnosis of SM requires integrating various diagnostic modalities.
• Understanding the diverse clinical presentations is crucial for effective patient management.
• This review offers current insights into the diagnosis, prognosis, and treatment of rare mast cell disorders.