Recurrent retroauricular cystic nodules: Lichen planus follicularis tumidus

Thinh Chau, Nima Amini, Daniel B. Eisen, Maxwell A. Fung

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Lichen planus follicularis tumidus (LPFT) is a rare subtype of lichen planus (LP) that has been most commonly described in middle-aged women. LPFT clinically manifests as recurrent cystic follicular nodules that preferentially involve the retroauricular area; concurrent classic LP lesions on the extremities and mucosal surfaces may also be present. Histologically, LPFT demonstrates epithelial-lined follicular cysts filled with orthokeratotic keratin surrounded by a dense lichenoid infiltrate. We present a case of a 67-year-old man with clinical and histopathologic findings consistent with LPFT and discuss differential diagnostic considerations for entities resembling LPFT. Lastly, treatment options for LPFT are reviewed.

Original languageEnglish
Article number3
JournalDermatology Online Journal
Issue number10
StatePublished - Oct 2018
Externally publishedYes


  • Dermatopathology
  • Interface dermatitis
  • Lichen planus
  • Lichen planus follicularis tumidus
  • Retroauricular cystic nodules


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