Volume 43, Issue 11 pp. 963-973
Original Article

Histopathological aspects and differential diagnosis of CD8 positive lymphomatoid papulosis

Márta Marschalkó

Márta Marschalkó

Department of Dermatology Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary

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Nóra Gyöngyösi

Nóra Gyöngyösi

Department of Dermatology Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary

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Judit Noll

Judit Noll

Department of Dermatology, Heim Pál Childrens Hospital, Budapest, Hungary

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Zsuzsanna Károlyi

Zsuzsanna Károlyi

Department of Dermatology, Semmelweis Hospital, Miskolc, Hungary

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Norbert Wikonkál

Norbert Wikonkál

Department of Dermatology Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary

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Judit Hársing

Judit Hársing

Department of Dermatology Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary

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Enikő Kuroli

Enikő Kuroli

Department of Dermatology Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary

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Judit Csomor

Judit Csomor

1st Department of Pathology and Experimental Cancer Research Institute, Semmelweis University, Budapest, Hungary

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András Matolcsy

András Matolcsy

1st Department of Pathology and Experimental Cancer Research Institute, Semmelweis University, Budapest, Hungary

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Kárpáti Sarolta

Kárpáti Sarolta

Department of Dermatology Venereology and Dermatooncology, Semmelweis University, Budapest, Hungary

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Ágota Szepesi

Corresponding Author

Ágota Szepesi

1st Department of Pathology and Experimental Cancer Research Institute, Semmelweis University, Budapest, Hungary

Ágota Szepesi

1st Department of Pathology and Experimental Cancer Research Institute, Semmelweis University, Üllői str. 26. Budapest, 1085 Hungary

Tel: +36 1 215 7300

Fax: +36 1 317 5097

e-mail: [email protected]

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First published: 27 July 2016
Citations: 15

Abstract

Lymphomatoid papulosis (LyP) belongs to CD30+ lymphoproliferative disorders with indolent clinical course. Classic histological subtypes, A, B and C are characterized by the CD4+ phenotype, while CD8+ variants, most commonly classified as type D, were reported in recent years. We present 14 cases of CD8+ LyP. In all patients, self-resolving or treatment-sensitive papules were observed. Of 14 cases 7 produced results with typical microscopic features of LyP type D mimicking primary cutaneous aggressive epidermotropic CD8+ T-cell lymphoma. The infiltration pattern in 4 of 14 cases were consistent with classic LyP type B, without CD30 expression in two cases, resembling mycosis fungoides (MF). The morphology of 2 of 14 cases shared a certain consistency with classic type A and C, lacking eosinophils and neutrophils. Extensive folliculotropism characteristic to type F was observed in 1 of 14 case. Significant MUM1 and PD1 expression were detected in 2 of 14 and 3 of 14 cases, respectively. We concluded that CD8+ LyP may present with different histopathological features compared with type D, similar to CD4+ LyP variants. Differential diagnoses include CD8+ papular MF, folliculotropic MF and anaplastic large cell lymphoma in addition to primary cutaneous aggressive epidermotropic T-cell lymphoma. We emphasise that rare CD8+ LyP cases may exist with CD30-negativity.

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