Pityriasis lichenoides chronica presenting with bilateral palmoplantar involvement.
Pityriasis lichenoides is an uncommon, acquired, idiopathic, self-limiting skin disease that poses a challenge to patients and clinicians to diagnose and treat. Several variants exist including pityriasis lichenoides et varioliformis acuta (PLEVA), pityriasis lichenoides chronica (PLC), and febrile ulcer-onecrotic Mucha-Habermann disease. Precise classification can be difficult due to an overlap of clinical and histologic features. In this case report we describe a patient with a rare presentation of PLC exhibiting bilateral palmoplantar involvement and mimicking psoriasis. We review the literature and discuss the clinical course, pathogenesis, and current treatment modalities of PLC.
Private practice, New York, New York, USA.
Lyubov
L
Avshalumova
Westgate Skin and Cancer Center, Austin, Texas, USA.
Blakely
B
Richardson
Bay Dermatology/Largo Medical Center, Florida, USA.
Richard
R
Miller
D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D011701:PUVA Therapy / Q000379:methods*; D017514:Pityriasis Lichenoides / Q000175:diagnosis / Q000473:pathology / Q000503:physiopathology / Q000628:therapy; D011565:Psoriasis / Q000175:diagnosis*; D012867:Skin / Q000473:pathology*; D013752:Tetracycline / Q000008:administration & dosage*; D016896:Treatment Outcome
D000900:Anti-Bacterial Agents; D013752:Tetracycline