Which histiocytosis disorders are classified as L (Langerhans) group diseases?

Updated: Sep 16, 2020
  • Author: Cameron K Tebbi, MD; Chief Editor: Vikramjit S Kanwar, MBBS, MBA, MRCP(UK), FAAP  more...
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Members of the L group include the following:

  • Langerhans cell histiocytosis
  • Indeterminate cell histiocytosis (ICH) - Including polyostotic sclerosing histiocytosis (Erdheim-Chester disease [ECD]) and mixed Langerhans cell histiocytosis/ECD

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