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Lymphomatoid papulosis

Disease definition

Lymphomatoid papulosis (LyP) is a rare cutaneous condition characterized by chronic, recurrent, and self-regressing papulonodular skin eruptions. It belongs to the spectrum of primary cutaneous CD30+ lymphoproliferative disorders, along with primary cutaneous anaplastic large cell lymphoma (primary C-ALCL; see this term) with which it shares overlapping clinical and histopathologic features.

ORPHA:98842

Classification level: Disorder
  • Synonym(s):
    • LyP
  • Prevalence: Unknown
  • Inheritance: -
  • Age of onset: All ages
  • ICD-10: C86.6
  • OMIM: -
  • UMLS: C0206182
  • MeSH: D017731
  • GARD: 6944
  • MedDRA: 10056670
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