Cutaneous Pseudolymphoma With Langerhans Cell Hyperplasia-A Rare Case With Clinical Presentation Mimicking Malignancy and Potential Diagnostic Pitfall

Am J Dermatopathol. 2021 Dec 1;43(12):e280-e284. doi: 10.1097/DAD.0000000000001984.

Abstract

We describe a rare case of cutaneous pseudolymphoma with Langerhans cell hyperplasia. An 84-year-old female patient presented with erythematous and pernicious-looking plaques on her scalp that had been present for months. Histologically, lymphoid follicles consisting of mixed-type lymphocytes and Langerhans cells were aggregated focally. The diagnosis was verified by several immunohistochemical stains and by clinical evaluation. Skin lesions were steadily resolved with low-dose corticosteroid and hydroxychloroquine.

Publication types

  • Case Reports

MeSH terms

  • Aged, 80 and over
  • Diagnosis, Differential
  • Female
  • Humans
  • Hyperplasia / pathology
  • Langerhans Cells / pathology*
  • Lymphoma / diagnosis
  • Lymphoma / pathology
  • Pseudolymphoma / diagnosis*
  • Pseudolymphoma / pathology*
  • Scalp / pathology*
  • Skin Diseases / pathology*