Eosinophilic fasciitis.

Area of Science:

• Rheumatology
• Dermatology
• Connective Tissue Diseases

Background:

• Eosinophilic fasciitis (EF) is a distinct connective tissue disorder characterized by deep fascial inflammation.
• Clinical presentation includes indurated skin plaques, predominantly on extremities, with peripheral eosinophilia, hypergammaglobulinaemia, and elevated ESR.
• Distinguishing EF from scleroderma is crucial due to differing prognoses and management.

Purpose of the Study:

• To detail the clinical, laboratory, and histopathological features of eosinophilic fasciitis.
• To discuss associated serious hematological abnormalities in EF.
• To delineate the similarities and distinctions between eosinophilic fasciitis and scleroderma.

Main Methods:

• Review of clinical case data and laboratory findings in patients with eosinophilic fasciitis.
• Histopathological examination of affected skin and fascial tissues.
• Comparative analysis of EF features against scleroderma criteria.

Main Results:

• EF presents with bound-down skin plaques, peripheral eosinophilia, and elevated inflammatory markers.
• Histopathology reveals abnormalities primarily in the lower subcutis and fascia.
• Systemic corticosteroids generally lead to clinical improvement, but serious hematological issues can arise.
• Absence of Raynaud's phenomenon, acral sclerosis, visceral involvement, and antinuclear antibodies are typical differentiating features from scleroderma.

Conclusions:

• Eosinophilic fasciitis is a unique disorder with characteristic clinical and histopathological findings.
• Prompt diagnosis and treatment with corticosteroids are essential for managing EF.
• Understanding the differences between EF and scleroderma is critical for appropriate patient management and prognosis.