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[Eosinophilic gastroenteritis caused by bee pollen sensitization]

S Puente1, A Iñíguez, M Subirats

  • 1Servicio de Enfermedades Infecciosas-Sección de Medicina Tropical, Centro de Investigación Clínica, Madrid.

Medicina Clinica
|May 10, 1997
PubMed
Summary

Bee pollen ingestion can trigger eosinophilic gastroenteritis in individuals with honey intolerance. Symptoms resolved after discontinuing bee pollen, highlighting its potential role in this condition.

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Area of Science:

  • Gastroenterology
  • Allergy and Immunology

Background:

  • Honey intolerance is a known condition, but its link to specific food components like bee pollen is less understood.
  • Eosinophilic gastroenteritis (EG) is characterized by eosinophilic infiltration of the gastrointestinal tract, leading to various digestive symptoms.

Observation:

  • A 34-year-old woman with a history of seasonal rhinoconjunctivitis and honey intolerance developed gastrointestinal distress, anorexia, asthenia, and peripheral blood hypereosinophilia after consuming bee pollen.
  • Duodenal biopsy confirmed eosinophilic infiltration of the mucosal layer, with no other causes of hypereosinophilia identified.

Findings:

  • The patient's symptoms, hypereosinophilia, and elevated immunoglobulin E (IgE) levels resolved completely upon cessation of bee pollen intake.
  • Diagnostic criteria for eosinophilic gastroenteritis were met, including gastrointestinal symptoms, biopsy-confirmed eosinophilic infiltration, exclusion of other organ involvement, and negative parasitic studies.

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Implications:

  • This case suggests that bee pollen administration should be considered a potential trigger for eosinophilic gastroenteritis, particularly in patients with pre-existing honey intolerance.
  • Further research is warranted to elucidate the mechanisms underlying bee pollen-induced EG and to establish diagnostic and management guidelines.