Refractory macrophage activation syndrome in the setting of adult-onset Still disease with hemophagocytic lymphohistiocytosis detected on skin biopsy treated with canakinumab and tacrolimus

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Abstract

A 19-year-old Caucasian female with adult-onset Still disease (AOSD) presented for evaluation of an acute clinical decompensation and atypical annular papules and plaques with purpura on the lower extremities. A punch biopsy demonstrated histiocytes with engulfed degenerated erythrocytes and lymphocytes, consistent with hemophagocytic lymphohistiocytosis (HLH). HLH, clinically referred to as macrophage activation syndrome, is a rare complication of AOSD and is life-threatening. Relevant clinical, laboratory, and histologic features of this diagnosis are reviewed.

Original languageEnglish (US)
JournalJournal of Cutaneous Pathology
DOIs
Publication statusPublished - Jan 1 2019

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Keywords

  • adult-onset Still disease
  • canakinumab
  • hemophagocytic lymphohistiocytosis
  • histopathology
  • macrophage activation syndrome
  • skin biopsy
  • tacrolimus

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology
  • Dermatology

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