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Pityriasis Lichenoides-like Mycosis Fungoides: Clinical and Histologic Features and Response to Phototherapy

Overview
Journal Ann Dermatol
Specialty Dermatology
Date 2016 Oct 18
PMID 27746631
Citations 5
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Abstract

Background: Pityriasis lichenoides (PL)-like skin lesions rarely appear as a specific manifestation of mycosis fungoides (MF).

Objective: We investigated the clinicopathological features, immunophenotypes, and treatments of PL-like MF.

Methods: This study included 15 patients with PL-like lesions selected from a population of 316 patients diagnosed with MF at one institution.

Results: The patients were between 4 and 59 years of age. Four patients were older than 20 years of age. All of the patients had early-stage MF. In all patients, the atypical lymphocytic infiltrate had a perivascular distribution with epidermotropism. The CD4/CD8 ratio was <1 in 12 patients. Thirteen patients were treated with either narrowband ultraviolet B (NBUVB) or psoralen+ultraviolet A (PUVA), and all of them had complete responses.

Conclusion: PL-like MF appears to have a favorable prognosis and occurrence of this variant in adults is uncommon. MF should be suspected in the case of a PL-like skin eruption. Therefore, biopsy is required to confirm the diagnosis of PL-like MF, and NBUVB is a clinically effective treatment.

Citing Articles

Pityriasis Lichenoides-Like Mycosis Fungoides: A Case Report.

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CD4/CD8 Dual Positive Pityriasis Lichenoides Like Mycosis Fungoides Presenting with Both Pityriasis Lichenoid Lesions and Hypopigmented Patches: A Rare Presentation.

Rao A, Naresh M, Shreeja V, Vsvn S, Sindhuja B, Pranaya B Indian J Dermatol. 2022; 67(4):441-444.

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Type D lymphomatoid papulosis with pityriasis lichenoides et varioliformis acuta-like features in a child with parvovirus infection: a controversial diagnosis in the spectrum of lymphoid proliferations: case report and literature review.

Calcaterra V, Cavalli R, Croci G, Fiori L, Fabiano A, Lunardon L Ital J Pediatr. 2022; 48(1):183.

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A Case Report of Pityriasis Lichenoides-Like Mycosis Fungoides in Children: A Challenging Diagnosis.

Mohd Amin S, Muhamad R, Abdullah W, Zulkifli M, Bakrin I, Tangam T Korean J Fam Med. 2020; 42(4):334-338.

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Folliculotropic Mycosis Fungoides in 20 Korean Cases: Clinical and Histopathologic Features and Response to Ultraviolet A-1 and/or Photodynamic Therapy.

Jang M, Jang J, Park J, Kang D, Lee J, Lee T Ann Dermatol. 2018; 30(2):192-201.

PMID: 29606817 PMC: 5839891. DOI: 10.5021/ad.2018.30.2.192.

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