Late-onset sporadic ataxia, pontine lesion, and retroperitoneal fibrosis: a case of Erdheim-Chester disease

Neurol Sci. 2008 Sep;29(4):263-7. doi: 10.1007/s10072-008-0978-2. Epub 2008 Sep 20.

Abstract

A 60-year-old man with progressive gait ataxia and mild pyramidal signs showed at MRI a pontine lesion with post-contrast enhancement in the left middle cerebellar peduncle. Diagnosis of Erdheim-Chester disease (ECD), a rare non-Langerhans cell histiocytosis, was suggested, further supported by a previously diagnosed retroperitoneal fibrosis. X-ray films demonstrated characteristic bilateral and symmetric osteosclerosis of the long bones of the lower limbs, which at radionuclide studies exhibited a marked increase in technetium-99 uptake. A cerebral 18FDG-PET showed a relevant pontine uptake of the tracer. Re-evaluation of a past retroperitoneal biopsy showed an intense CD68+, CD1a-, and S100- infiltrate of histiocytes with foamy cytoplasm, thus confirming the diagnosis. ECD should be regarded as a rare cause of adult-onset sporadic ataxia, especially when pontine lesions and extraneurological manifestations are present.

Publication types

  • Case Reports

MeSH terms

  • Afferent Pathways / pathology
  • Afferent Pathways / physiopathology
  • Biomarkers / analysis
  • Biomarkers / metabolism
  • Bone and Bones / diagnostic imaging
  • Bone and Bones / pathology
  • Brain Mapping
  • Cerebellar Ataxia / diagnostic imaging
  • Cerebellar Ataxia / etiology*
  • Cerebellar Ataxia / pathology
  • Cerebellum / pathology
  • Cerebellum / physiopathology
  • Disease Progression
  • Erdheim-Chester Disease / complications*
  • Erdheim-Chester Disease / diagnosis
  • Erdheim-Chester Disease / physiopathology
  • Fluorodeoxyglucose F18
  • Hearing Loss, Central / etiology
  • Hearing Loss, Central / pathology
  • Hearing Loss, Central / physiopathology
  • Histiocytes / immunology
  • Histiocytes / pathology
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Middle Aged
  • Orbit / pathology
  • Orbit / physiopathology
  • Pons / diagnostic imaging
  • Pons / pathology*
  • Pons / physiopathology
  • Positron-Emission Tomography
  • Retroperitoneal Fibrosis / etiology*
  • Retroperitoneal Fibrosis / pathology
  • Retroperitoneal Fibrosis / physiopathology
  • Technetium

Substances

  • Biomarkers
  • Fluorodeoxyglucose F18
  • Technetium