Dural Manifestation of Langerhans Cell Histiocytosis​: Multimodality Imaging Approach

Area of Science:

• Pediatric Neurology
• Neuroradiology
• Oncology

Background:

• Langerhans cell histiocytosis (LCH) is a rare clonal proliferative disorder of myeloid origin.
• Dural involvement is an uncommon manifestation of LCH, particularly in pediatric cases.
• Dural LCH can mimic other conditions like meningioma or pachymeningitis on imaging.

Purpose of the Study:

• To report a rare case of dural Langerhans cell histiocytosis in a pediatric patient.
• To highlight the diagnostic utility of combined MRI and FDG PET imaging in CNS LCH.
• To emphasize the importance of differentiating dural LCH from other dural pathologies.

Main Methods:

• Case presentation of a 2-year-old boy with LCH presenting with scalp swelling.
• Detailed description of imaging findings, including MRI and FDG PET.
• Review of literature regarding dural LCH and its imaging characteristics.

Main Results:

• The patient presented with scalp swelling, and imaging revealed dural involvement.
• MRI provided detailed structural and anatomical information of the dural lesion.
• FDG PET demonstrated metabolic activity, aiding in lesion characterization and staging.

Conclusions:

• Combined MRI and FDG PET imaging offer complementary information for diagnosing CNS LCH.
• This multimodal imaging approach is essential for accurate staging and treatment monitoring of dural LCH.
• Early recognition of dural LCH is critical for appropriate management and improved patient outcomes.