Pityriasis lichenoides chronica
DOI:
https://doi.org/10.47196/da.v31i1.2509Keywords:
pityriasis lichenoides chronica, erythromycin, lymphoproliferativeAbstract
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.
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.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 on behalf of the authors. Reproduction rights: Argentine Society of Dermatology

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
El/los autor/es tranfieren todos los derechos de autor del manuscrito arriba mencionado a Dermatología Argentina en el caso de que el trabajo sea publicado. El/los autor/es declaran que el artículo es original, que no infringe ningún derecho de propiedad intelectual u otros derechos de terceros, que no se encuentra bajo consideración de otra revista y que no ha sido previamente publicado.
Le solicitamos haga click aquí para imprimir, firmar y enviar por correo postal la transferencia de los derechos de autor