Abstract
Pityriasis lichenoides et varioliformis acuta and pityriasis lichenoides chronica are the 2 main subtypes of pityriasis lichenoides. They represent the acute and chronic forms of the disease; both may have clonal T cells. Several treatment modalities are used, but it has been difficult to determine efficacy because of the possibility of spontaneous remission. Cutaneous CD30+ lymphoproliferative disorders constitute many cutaneous T-cell lymphomas and comprise lymphomatoid papulosis and primary cutaneous anaplastic large cell lymphoma (ALCL). Both have an excellent prognosis. Lymphomatoid papulosis often only requires observation or treatment of symptoms. First-line therapies for primary cutaneous ALCL are surgical excision or radiotherapy.
Keywords:
Anaplastic large cell lymphoma; CD30 lymphoproliferative disorder; Lymphomatoid papulosis; Pityriasis lichenoides chronica; Pityriasis lichenoides et varioliformis acuta.
Copyright © 2019 Elsevier Inc. All rights reserved.
MeSH terms
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Adrenal Cortex Hormones / therapeutic use
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Anti-Bacterial Agents / therapeutic use
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Antibodies, Monoclonal / therapeutic use
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Antineoplastic Agents / therapeutic use
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Dermatologic Surgical Procedures
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Humans
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Immunosuppressive Agents / therapeutic use
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Keratolytic Agents / therapeutic use
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Ki-1 Antigen
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Lymphoma, Primary Cutaneous Anaplastic Large Cell / diagnosis
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Lymphoma, Primary Cutaneous Anaplastic Large Cell / pathology
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Lymphoma, Primary Cutaneous Anaplastic Large Cell / therapy*
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Lymphomatoid Papulosis / diagnosis
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Lymphomatoid Papulosis / pathology
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Lymphomatoid Papulosis / therapy*
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Phototherapy
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Pityriasis Lichenoides / diagnosis
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Pityriasis Lichenoides / pathology
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Pityriasis Lichenoides / therapy*
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Radiotherapy
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Skin Neoplasms / diagnosis
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Skin Neoplasms / pathology
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Skin Neoplasms / therapy*
Substances
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Adrenal Cortex Hormones
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Anti-Bacterial Agents
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Antibodies, Monoclonal
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Antineoplastic Agents
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Immunosuppressive Agents
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Keratolytic Agents
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Ki-1 Antigen
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SGN-30 monoclonal antibody