Eosinophilic Skin Diseases: A Comprehensive Review

Area of Science:

• Dermatology
• Immunology
• Pathology

Background:

• Eosinophilic dermatoses encompass diverse skin conditions defined by eosinophil infiltration or degranulation.
• Common forms include allergy-related conditions, parasitic infections, and autoimmune blistering diseases.
• Rare eosinophilic dermatoses involve specific skin layers or adnexal structures, often with unknown etiology.

Purpose of the Study:

• To provide a comprehensive review of rare eosinophilic dermatoses.
• To discuss current understanding of etiology, pathogenesis, clinical features, and management.
• To emphasize recent advances and identify areas needing further research.

Main Methods:

• Literature review of rare eosinophilic dermatoses.
• Synthesis of information on etiology, pathogenesis, clinical presentation, and treatment.
• Focus on recent scientific advancements and clinical consensus.

Main Results:

• Rare eosinophilic dermatoses exhibit varied clinical and pathological properties despite shared eosinophilia.
• Some rare types are linked to HIV, malignancies, or hematological disorders.
• Etiology and pathogenesis for most rare eosinophilic dermatoses remain largely unknown.

Conclusions:

• Significant knowledge gaps exist regarding the causes and mechanisms of rare eosinophilic dermatoses.
• High-quality clinical investigations are crucial for improving diagnosis and treatment strategies.
• Further research is needed to advance the understanding and management of these conditions.