Pulmonary involvement of idiopathic hypereosinophilic syndrome: CT findings in five patients

Eun Young Kang, Jae Jeong Shim, Jeung Sook Kim, Kun Il Kim

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Purpose: The aim of this study was to assess the CT findings of pulmonary involvement in patients with idiopathic hypereosinophilic syndrome (HES). Method: The study included five patients with idiopathic HES who had pulmonary involvement proven by bronchoalveolar lavage (n = 3) or based on clinical and radiologic findings (n 2). Four patients had high resolution CT and one had conventional CT. The CT scans were retrospectively reviewed by two chest radiologists for pattern and distribution of disease. Results: All five patients had several small nodules in both lungs at CT scan. Four patients had nodules with a halo of ground-glass attenuation. Three patients had focal areas of ground-glass attenuation in both lungs. These lesions were present in all lung zones and involved mainly the peripheral lung. There was neither lobar predilection nor peribronchovascular distribution. Other organs involved included bone marrow (n = 3), liver (n = 3), stomach (n = 1), and peritoneum (n = 1). Conclusion: The CT findings of pulmonary involvement in patients with idiopathic HES included small nodules with or without a halo of ground-glass attenuation and focal areas of ground-glass attenuation mainly in the lung periphery.

Original languageEnglish
Pages (from-to)612-615
Number of pages4
JournalJournal of Computer Assisted Tomography
Issue number4
Publication statusPublished - 1997 Oct 21



  • Blood, diseases
  • Computed tomography
  • Eosinophilia
  • Lungs, diseases

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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