Secondary sea-blue histiocytosis derived from Niemann-Pick disease

Osamu Suzuki1, Masafumi Abe

  • 1First Department of Pathology, School of Medicine, Fukushima Medical University, Fukushima, Japan. osuzuki@fmu.ac.jp

Insights

Sea-blue histiocytosis, characterized by ceroid-laden macrophages, is detected in an adult with Niemann-Pick disease. This finding highlights the diagnostic utility of identifying sea-blue histiocytes in rare lipid metabolic disorders.

Area of Science:

  • Hematology
  • Genetics
  • Metabolic Disorders

Background:

  • Sea-blue histiocytosis is a rare condition associated with lipid metabolic and ceroid storage diseases.
  • Sea-blue histiocytes are macrophages containing ceroid, identifiable through May-Giemsa staining.

Observation:

  • A case study of a 28-year-old woman with a history of Niemann-Pick disease diagnosed in early childhood is presented.
  • Bone marrow examination revealed foamy macrophages in aggregates.
  • May-Giemsa staining confirmed the presence of sea-blue histiocytes.

Findings:

  • The study successfully detected sea-blue histiocytosis in an adult patient.
  • Niemann-Pick disease was confirmed as the underlying condition in this adult case.

Implications:

  • This case underscores the importance of recognizing sea-blue histiocytosis in adult patients with Niemann-Pick disease.
  • The findings may aid in the diagnosis and understanding of rare lipid storage disorders.
  • May-Giemsa staining remains a valuable tool for identifying sea-blue histiocytes in clinical diagnostics.