CNS tumor
Lymphoma and other hematopoietic lesions
Langerhans cell histiocytosis

Author: Nat Pernick, M.D. (see Authors page)

Revised: 8 September 2017, last major update January 2006

Copyright: (c) 2002-2017,, Inc.

PubMed Search: Langerhans cell histiocytosis [title] CNS

Cite this page: Pernick, N. Langerhans cell histiocytosis. website. Accessed October 15th, 2018.
Definition / general
  • Rare lytic skull lesion or parasellar mass
  • Children and young adults
  • May arise from primary histiocytic proliferation with secondary atrophy or from demyelination and gliosis of unknown origin (J Child Neurol 2000;15:150)
Case reports
Microscopic (histologic) description
  • Cells with abundant eosinophilic cytoplasm and reniform (kidney / coffee bean shaped) nuclei with grooves
  • Variable collagen, gliosis and infiltrating T cells
  • May be partially infiltrative of surrounding CNS parenchyma or circumscribed granulomas
Microscopic (histologic) images

Images hosted on other servers:

Various images

Positive stains
Negative stains
Electron microscopy description
  • Birbeck granules