Pityriasis lichenoides chronica

Authors

  • Cintia Elizabeth Caruso Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina
  • Gonzalo Fernández Ugazio Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina
  • Florencia Petrozzino Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina
  • Karina Alejandra Cejas Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina
  • Diego Silva Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina

DOI:

https://doi.org/10.47196/da.v31i1.2509

Keywords:

pityriasis lichenoides chronica, erythromycin, lymphoproliferative

Abstract

Pityriasis lichenoides chronica (PLC) is a rare dermatosis with a higher incidence in the pediatric population and a predilection for males. It´s a T-cell lymphoproliferative disorder of unknown etiology that could be associated with infections or the use of certain medications. It´s characterized by recurrent out breaks of erythematous and scalypapules that spontaneously resolve in weeks or months, potentially leaving residual hypopigmented macules. We describe the case of a 7-year-old male patient who sought medical attention for presenting pruritic erythematous and scalypapules, extending from the neck to the extremities but sparing the scalp, face, palms, soles, and genital area. Laboratory and histopathological studies led to the diagnosis of PLC, and treatment with oral erythromycin was initiated.

Author Biographies

Cintia Elizabeth Caruso, Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina

Medical Student, Dermatology Service

Gonzalo Fernández Ugazio, Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina

Anatomical Pathologist, Dermatology Service

Florencia Petrozzino, Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina

Anatomical Pathologist, Dermatology Service

Karina Alejandra Cejas, Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina

Staff Physician, Dermatology Service

Diego Silva, Dr. Abel Zubizarreta Hospital, City of Buenos Aires, Argentina

Head of Service, Dermatology Service

References

I. Wood G, Reizner G. Otros trastornos papuloescamosos. En: Bolognia J, Schaffer J, Cerroni L. Dermatology 4° edición. Elsevier, Barcelona 2019;163-166.

II. Eichenfield D, Eichenfield L. Pitiriasis liquenoide. En: Larralde M, Abad E, Luna P, Boggio P, et ál. Dermatología Pediátrica 3° edición. Ediciones Journal, Buenos Aires, 2021;303-306.

III. Iglesias Gómez C, Castellar-Reche MA, Sánchez-Pedreño Guillén P, Martínez-Menchón T. Pityriasis lichenoides. Not everything is chickenpox. A case report. Rev Pediatr Aten Primaria. 2019:21:169-172.

IV. Zegpi MS, Ruiz FM, Porras NK. Pityriasis lichenoides. Case report and review of the literature. Rev Chil Pediatr. 2015;86:121-125.

V. Sciancalepore GP, Cigna ML, Yarza ML, Grees SA. Pitiriasis liquenoide: estudio retrospectivo clínico epidemiológico de 49 pacientes pediátricos. Rev Argent Dermatol. 2013;94:06-19.

VI. Hapa A, Ersoy-Evans S, Karaduman A. Childhood pityriasis lichenoides and oral erythromycin. Pediatr Dermatol. 2012;29:719-724.

VII. Truhan AP, Hebert AA, Esterly NB. Pityriasis lichenoides in children: therapeutic response to erythromycin. J Am Acad Dermatol. 1986;15: 66-70.

VIII. Ersoy-Evans S, Greco MF, Mancini AJ, Subaϛi N, et ál. Pityriasis lichenoides in childhood: a retrospective review of 124 patients. J Am Acad Dermatol. 2007;56:205-210.

IX. Maranda EL, Smith M, Nguyen AH, Patel VN, et ál. Phototherapy for pityriasis lichenoides in the pediatric population. A review of the published literature. Am J Clin Dermatol. 2016;17:583-591.

X. Hrin ML, Bowen NL, Jorizzo JL, Feldman SR, et ál. Methotrexate for pityriasis lichenoides et varioliformis acuta (Mucha-Habermann disease) and pityriasis lichenoides chronica. A retrospective case series of 33 patients with an emphasis on outcomes. J Am Acad Dermatol. 2022;86 433-437.

Published

2025-04-04

Issue

Section

Clinical Cases