Eosinophilic sialodochitis: An emerging atopic condition

Area of Science:

• Otorhinolaryngology
• Allergy and Immunology
• Pathology

Background:

• Eosinophilic sialodochitis is a rare condition affecting salivary glands.
• Understanding its clinical presentation is crucial for diagnosis and management.

Purpose of the Study:

• To describe the clinical characteristics of the largest single-center cohort of patients diagnosed with eosinophilic sialodochitis.
• To identify key demographic, clinical, and laboratory features associated with the condition.

Main Methods:

• Retrospective analysis of 37 patients from a multidisciplinary clinic.
• Collated demographic, clinical, hematological, cytological, histological, and radiological data.
• Assessed patient response to allergy-focused treatments.

Main Results:

• 37 patients (7 male, 30 female) identified, with a mean age of 50.4 years.
• Common symptoms included swelling (97%), itching (92%), discomfort (84%), and "string-like" mucus discharge (76%).
• Atopic disease (62%) and elevated serum IgE (57%) were frequent; eosinophils were present in duct samples (100%) and elevated in peripheral counts (41%).

Conclusions:

• Eosinophilic sialodochitis should be considered in patients with recurrent salivary gland swelling.
• The findings suggest a likely allergic pathogenesis, warranting further investigation into targeted treatments.