The histiocytosis X is a spectrum of disorders, Which include the following condition ?

Correct answer: D. All of the above

  • A. Eosinophilic granuloma
  • B. Hand Schuller - Christian disease
  • C. Letterer - Siwe disease
  • D. All of the above

Explanation

Histiocytosis X, now grouped under Langerhans cell histiocytosis, historically included eosinophilic granuloma, Hand-Schüller-Christian disease and Letterer-Siwe disease. Thus all the listed conditions belong to this spectrum.

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