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    1 OF 18

    Cutaneous CD30-positive T-cell lymphoproliferative disorders-clinical and histopathologic features, differential diagnosis, and treatment.
    Semin Cutan Med Surg 2018 Mar;37(1):24-29
    Department of Dermatology, University Medical Center, Göttingen, Germany.
    Cutaneous CD30+ T-cell lymphoproliferative disorders (CD30+ LPD) are the second most common form of cutaneous T-cell lymphoma. CD30+ LPD include lymphomatoid papulosis, primary cutaneous anaplastic large-cell lymphoma, and borderline lesions. Despite expression of CD30 by the neoplastic cells as the hallmark of these disorders, they differ in their clinical presentation and histological features as well as the course, the prognosis, and consecutively in the treatment. Read More

    The First Year of the AEVD Primary Cutaneous Lymphoma Registry.
    Actas Dermosifiliogr 2018 Apr 18. Epub 2018 Apr 18.
    Servicio de Dermatología, Hospital Universitario 12 de Octubre, Institute i+12, Medical School. Universidad Complutense, ONCOCIBER, Madrid, España.
    Background And Objective: Primary cutaneous lymphomas are uncommon. This article describes the Primary Cutaneous Lymphoma Registry of the Spanish Academy of Dermatology and Venereology (AEDV) and reports on the results from the first year.

    Patients And Methods: Disease registry for patients with primary cutaneous lymphoma. Read More

    Lymphomatoid papulosis presenting as a rash in a patient with HIV infection.
    Int J STD AIDS 2018 Jan 1:956462418767183. Epub 2018 Jan 1.
    3 Department of Histopathology, 97609 University Hospital of Wales , Cardiff, UK.
    A 43-year-old Malaysian man with well-controlled HIV infection on combination antiretroviral therapy presented with a six-week history of a widespread rash. The patient was otherwise well but was developing new lesions on a daily basis. Referral to Dermatology instigated punch biopsies, which revealed a diagnosis of lymphomatoid papulosis type A. Read More

    Lymphomatoid papulosis with folliculotropism, eccrinotropism and neurotropism.
    J Cutan Pathol 2018 Apr 16. Epub 2018 Apr 16.
    Department of Dermatology, Chinese PLA General Hospital & Medical School, Beijing, China.
    The histopathological characteristics of lymphomatoid papulosis (LyP) vary. Currently, 6 subtypes have been reported, including a new subtype with perifollicular infiltration and different degrees of folliculotropism of CD30+ atypical lymphocytes, known as follicular LyP. However, LyP pathologically manifesting with folliculotropism, eccrinotropism and neurotropism has been rarely reported. Read More

    SATB1 Defines a Subtype of Cutaneous CD30 Lymphoproliferative Disorders Associated with a T-Helper 17 Cytokine Profile.
    J Invest Dermatol 2018 Mar 3. Epub 2018 Mar 3.
    Department of Dermatology and Venerology, Peking University First Hospital, Beijing, China; Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, Beijing, China. Electronic address:
    Cutaneous CD30 lymphoproliferative disorders (LPDs), including lymphomatoid papulosis (LyP) and primary cutaneous anaplastic large-cell lymphoma, comprise the second most common group of cutaneous T-cell lymphomas. Previously, we reported that special SATB1, a thymocyte-specific chromatin organizer, was overexpressed and promoted malignant T-cell proliferation in a portion of CD30 LPDs. Here, we investigated the expression pattern of SATB1 in CD30 LPDs with a large cohort of patient samples, and examined the potential of SATB1 as a molecular marker to classify CD30 LPDs with differential clinicopathological behaviors. Read More

    Drug induced pseudolymphoma.
    Semin Diagn Pathol 2018 Jan 17. Epub 2018 Jan 17.
    Regional Medical Laboratory, 4142 South Mingo Road, Tulsa, OK 74146-3632, United States.
    Atypical lymphocytic infiltrates of the skin comprise a broad spectrum of entities ranging from benign infiltrates to those that are malignant. Many of these infiltrates are in fact reactive lymphomatoid ones related to drug therapy falling under the general category of drug associated pseudolymphoma. Within this nosologic umbrella are nodular and diffuse infiltrates resembling low grade T and B cell lymphoma consistent with lymphocytoma cutis, drug associated reversible T cell dyscrasias which draw a strong morphologic and phenotypic parallel with mycosis fungoides and the various pre-lymphomatous T cell dyscrasias, and angiocentric CD30 positive infiltrates mirroring lymphomatoid papulosis. Read More

    Dermoscopic characterization of cutaneous lymphomas: a pilot survey.
    Int J Dermatol 2018 Mar 10;57(3):339-343. Epub 2018 Jan 10.
    Department of Dermatology, University of Iowa Hospitals & Clinics, Iowa City, IA, USA.
    Background: While substantial dermoscopic analysis of melanocytic lesions has been performed, dermoscopic characterization of cutaneous lymphoid proliferations has been limited. Cutaneous lymphoma, particularly early mycosis fungoides (MF) and its variants, is often challenging to clinically and pathologically distinguish from inflammatory processes of the skin. This study aimed to survey the dermoscopic findings of cutaneous lymphomas and to discern whether any patterns might potentially serve as specific signatures. Read More

    Pityriasis lichenoides: Long-term follow-up study.
    Pediatr Dermatol 2018 Mar 9;35(2):213-219. Epub 2018 Jan 9.
    Department of Dermatology, School of Medicine, Johns Hopkins University, Baltimore, MD, USA.
    Background/objectives: Pityriasis lichenoides is an uncommon papulosquamous disorder of unknown etiology. The objective of this study was to review the clinical features and treatment responses of individuals with pityriasis lichenoides seen at a tertiary referral center.

    Methods: Seventy-five patients diagnosed with pityriasis lichenoides between 1997 and 2013 were reviewed, and 46 had long-term follow-up via telephone interviews. Read More

    An uncommon diagnosis for a recurrent erythematous patch in a paediatric patient.
    BMJ Case Rep 2017 Dec 7;2017. Epub 2017 Dec 7.
    Department of Dermatology, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK.
    A 14-year-old girl presented with a circular erythematous patch over the left buttock for approximately 10 years, with ongoing ulceration and papules developing over the last 4 years. Punch biopsies were taken within and above the patch for diagnosis. Both revealed marked inflammatory infiltrates with atypical, irregular lymphocytes and increased mitosis. Read More

    Incidence and ten-year follow-up of primary cutaneous lymphomas: a single-centre cohort study.
    Eur J Dermatol 2018 Feb;28(1):44-49
    Department of Medicine, Section of Dermatology and Venereology, University of Verona, Verona, Italy.
    Background: Primary cutaneous lymphomas (PCLs) are a rare group of extranodal non-Hodgkin lymphomas, and epidemiological data in Mediterranean countries are scarce.

    Objective: To investigate the incidence and characteristics of PCL in a single tertiary referral centre in Italy.

    Materials & Methods: A total of 141 PCL patients, seen over a 10-year follow-up period, were investigated. Read More

    Oral Lymphomatoid papulosis type C: A diagnostic pitfall, often confused with T-cell lymphoma.
    Ann Diagn Pathol 2017 Dec 16;31:50-55. Epub 2017 Jun 16.
    Weill Cornell Medicine, 1300 York Ave, New York, NY 10065, USA. Electronic address:
    Eosinophilic ulcer of the oral mucosa (EUOM) is a rare, benign, self-resolving lymphoproliferative disorder, which typically presents with asymptomatic to mildly tender ulcers. Histological findings of EUOM are characterized by a polymorphic infiltrate with many eosinophils often extending into the underlying muscle. Although this entity is well documented within the dental literature, it is not well known to physicians. Read More

    An unusual case of lymphomatoid papulosis type E with extensive necrosis.
    Indian J Dermatol Venereol Leprol 2017 Aug 28. Epub 2017 Aug 28.
    Department of Pathology, Hospital Ramon Y Cajal, Madrid, Spain.
    Lymphomatoid papulosis type E (LyP) is a recently described subtype of LyP characterized by an angioinvasive infiltrate of atypical lymphocytes expressing CD30. We present a case of type E LyP with extensive cutaneous necrosis in the histopathological evaluation which was misdiagnosed as an ulcerative form of bacterial skin infection. The remarkable cutaneous necrosis showed in our case might be related to the angiodestructive infiltrate that was present in this circumstance. Read More

    First-line treatment in lymphomatoid papulosis: a retrospective multicentre study.
    Clin Exp Dermatol 2018 Mar 10;43(2):137-143. Epub 2017 Oct 10.
    Department of Dermatology, Hospital Clínico, University of Barcelona, IDIBAPS, Barcelona, Spain.
    Background: Data regarding response to treatment in lymphomatoid papulosis (LyP) are scarce.

    Aim: To assess the daily clinical practice approach to LyP and the response to first-line treatments.

    Methods: This was a retrospective study enrolling 252 patients with LyP. Read More

    Brentuximab Vedotin for Patients With Refractory Lymphomatoid Papulosis: An Analysis of Phase 2 Results.
    JAMA Dermatol 2017 Dec;153(12):1302-1306
    Department of Dermatology, The University of Texas MD Anderson Cancer Center, Houston.
    Importance: Brentuximab vedotin is a monomethyl auristatin E-conjugated monoclonal antibody directed against CD30. It represents a potential treatment for the CD30+ lymphoproliferative disorder lymphomatoid papulosis (LyP), which currently has no approved treatment.

    Objective: To assess the efficacy and safety of brentuximab vedotin for the treatment of LyP. Read More

    CD30+ T cell enriched primary cutaneous CD4+ small/medium sized pleomorphic T cell lymphoma: A distinct variant of indolent CD4+ T cell lymphoproliferative disease.
    Ann Diagn Pathol 2017 Oct 27;30:52-58. Epub 2017 Apr 27.
    Department of Pathology and Laboratory Medicine, New York Presbyterian Hospital/Weill Cornell Medicine, New York, NY, USA.
    Primary cutaneous CD4+ small/medium sized pleomorphic T-cell lymphoma (SMPTCL) is unique among the peripheral T-cell lymphomas because of its indolent nature, typically presenting as a solitary nodule or plaque in the head and neck area of middle-aged and older adults. Recent studies have suggested a follicular helper cell origin for these lesions.

    Materials And Methods: A retrospective review was conducted on all cases of SMPTCL diagnosed between 2008 and 2017. Read More

    A Case of Lymphomatoid Papulosis Type E With an Unusual Exacerbated Clinical Course.
    Am J Dermatopathol 2018 Feb;40(2):145-147
    Sikl's Department of Pathology, Medical Faculty in Pilsen, Charles University in Prague, Pilsen, Czech Republic.
    Lymphomatoid papulosis (LyP) type E is a recently delineated variant characterized by the occurrence of large necrotic "eschar"-like lesions displaying microscopically angioinvasive and angiodestructive infiltrates composed of CD30 lymphocytes, frequently coexpressing CD8. In contrast to other LyP variants where patients develop multiple lesions, most patients with LyP type E present with few lesions (often 1 or 2 at a given time). In this article, we describe a 34-year-old man with LyP type E with an exacerbated clinical course characterized by the occurrence of almost a hundred of lesions. Read More

    [Lymphomatoid papulosis: a clinicopathologic analysis and whole exome sequencing].
    Zhonghua Bing Li Xue Za Zhi 2017 Sep;46(9):601-606
    Department of Dermatovenereology, West China Hospital, Sichuan University, Chengdu 610041, China.
    To study the clinicopathologic characteristics and immunophenotype of lymphomatoid papulosis(LyP), followed by exon mutation analysis with focus on gene mutations involved in apoptosis pathway and other possible pathogenic genes. Clinical data analysis and immunohistochemical staining were carried out in 20 cases of LyP. Whole exome sequencing technology was employed in 2 cases of type C of LyP. Read More

    Hepatitis E virus-induced primary cutaneous CD30(+) T cell lymphoproliferative disorder.
    J Hepatol 2017 Dec 30;67(6):1334-1339. Epub 2017 Aug 30.
    Université Paris Descartes-Sorbonne Paris Cité, Paris, France; Institut National de la Santé et de la Recherche Médicale Unité 1163, Centre National de la Recherche Scientifique, Equipes de Recherche Labellisées 8254, Institut Imagine, Paris, France; Assistance Publique-Hopitaux de Paris (AP-HP), Hôpital Necker - Enfants Malades, Haematology Service, Paris, France.
    Background & Aim: Several types of unexplained extra-hepatic manifestations, including haematological disorders, have been reported in the context of hepatitis E virus (HEV) infection. However, the underlying mechanism(s) of these manifestations are unknown. We provide evidence that HEV has an extra-hepatic endothelial tropism that can engage cutaneous T cells towards clonality. Read More

    [WHO classification and clinical spectrum of cutaneous lymphomas].
    Hautarzt 2017 Sep;68(9):682-695
    Universitätsklinik für Dermatologie, Venerologie, Allergologie und Phlebologie, Mühlenkreiskliniken, Minden, Deutschland.
    Background: Cutaneous lymphomas are rare skin cancers with a wide clinical spectrum.

    Objective: To give an overview of the current classification and the clinical spectrum of cutaneous lymphomas.

    Material And Methods: Analysis and summary of the current literature concerning the different entities of cutaneous lymphomas. Read More

    Brentuximab vedotin therapy for CD30-positive cutaneous T-cell lymphoma: a targeted approach to management.
    Future Oncol 2017 Nov 14;13(27):2405-2411. Epub 2017 Aug 14.
    Dermatology - University Hospitals Birmingham NHS Foundation Trust, University Hospital Birmingham, Birmingham, B15 2TH, UK.
    CD30-positive primary cutaneous T-cell lymphoma (CTCL) includes mycosis fungoides, anaplastic large-cell lymphoma and lymphomatoid papulosis type A. Brentuximab vedotin (BV) consists of an antibody targeting CD30 with a protease-cleavable linker to vedotin. CD30 binding allows internalization of BV inducing cell-cycle arrest and apoptosis. Read More

    Cutaneous T-cell Lymphoma.
    Clin Lab Med 2017 09;37(3):527-546
    Department of Pathology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA. Electronic address:
    Cutaneous T-cell lymphomas comprise a heterogeneous group of diseases characterized by monoclonal proliferations of T lymphocytes primarily involving skin, modified skin appendages, and some mucosal sites. This article addresses the basic clinical, histologic, and immunohistochemical characteristics of this group of diseases, with additional attention to evolving literature on dermoscopy, reflectance confocal microscopy, flow cytometry, and molecular data that may increasingly be applied to diagnostic and therapeutic algorithms in these diseases. Select unusual phenotypes or diagnostic examples of classic phenotypes are demonstrated, and flags for consideration while making a pathologic diagnosis of cutaneous T-cell lymphoma are suggested. Read More

    Upregulation of inhibitory signaling receptor programmed death marker-1 (PD-1) in disease evolution from cutaneous lymphoid dyscrasias to mycosis fungoides and Sezary's syndrome.
    Ann Diagn Pathol 2017 Jun 10;28:54-59. Epub 2017 Feb 10.
    Department of Pathology and Laboratory Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, NY 10065, USA. Electronic address:
    Background: Negative immunoregulatory checkpoints impede effective immune responses to tumor and reduce the action of anticancer agents. One such example is programmed death marker-1 (PD-1), an inhibitory signaling receptor expressed on activated and regulatory T-cells. PD-1 expression was reported in a few reports, but the expression profile of PD-1 and mycosis fungoides (MF) remains largely to be characterized. Read More

    Associated Hematolymphoid Malignancies in Patients With Lymphomatoid Papulosis: A Canadian Retrospective Study.
    J Cutan Med Surg 2017 Nov/Dec;21(6):507-512. Epub 2017 Jun 14.
    1 Division of Dermatology, University of Toronto, Toronto, ON, Canada.
    Background: Lymphomatoid papulosis is one of the primary cutaneous CD30+ T-cell lymphoproliferative disorders. Although considered a benign disease, lymphomatoid papulosis has been associated potentially with an increased risk of secondary hematolymphoid malignancies.

    Objective: The aim of this study was to assess the clinical characteristics and histologic subtypes of lymphomatoid papulosis, identify the prevalence and types of secondary hematolymphoid malignancies, and determine the potential risk factors for development of these hematolymphoid malignancies. Read More

    Primary Cutaneous Small Cell Variant of Anaplastic Large Cell Lymphoma: A Case Series and Review of the Literature.
    Am J Dermatopathol 2017 Dec;39(12):877-889
    Assistant Professor of Clinical Dermatology, Department of Dermatology, UCDAVIS Health Center, Sacramento, CA.
    Primary cutaneous anaplastic large cell lymphoma (ALCL), similar to systemic ALCL, has as its histomorphologic hallmarks cohesive sheets of large lymphoid cells expressing CD30. Several morphologic variants of systemic ALCL have been reported, including the common (classic) type, lymphohistiocytic, and small cell variants. The small cell variant of ALCL is characterized by a predominant cytomorphology which is unexpected for ALCL, being in the context of a small- to medium-sized hyperchromatic atypical lymphocyte. Read More

    A Severe Case of Lymphomatoid Papulosis Type E Successfully Treated with Interferon-Alfa 2a.
    Case Rep Dermatol Med 2017 30;2017:3194738. Epub 2017 Apr 30.
    Dermatology and Venereology Department, Akdeniz University Faculty of Medicine, Antalya, Turkey.
    Lymphomatoid papulosis (LyP) is a benign papulonodular skin eruption with histologic features of malignant lymphoma. A new variant of LyP which was termed "type E" was recently described with similar clinical and histological features to angiocentric and angiodestructive T-cell lymphoma. LyP type E is characterized with recurrent papulonodular lesions which rapidly turn into hemorrhagic necrotic ulcers and spontaneous regression by leaving a scar. Read More

    Disseminated CD8-positive, CD30-positive cutaneous lymphoproliferative eruption with overlapping features of mycosis fungoides and primary cutaneous anaplastic large cell lymphoma following remote solitary lesional presentation.
    J Cutan Pathol 2017 Aug 13;44(8):703-712. Epub 2017 Jun 13.
    Department of Dermatology, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
    CD8-positive, CD30-positive cutaneous lymphoproliferative disorders constitute a rare subset of T-cell lymphoproliferative conditions, including variants of primary cutaneous anaplastic large cell lymphoma (ALCL), mycosis fungoides, lymphomatoid papulosis type D, cutaneous gamma-delta T-cell lymphoma and cutaneous peripheral T-cell lymphoma. These entities share overlapping clinical, histopathologic and immunophenotypic features, presenting both a clinical and pathological diagnostic challenge. Presented here is a 73-year-old man with a disseminated, indolent CD30+, CD8+ cutaneous lymphoproliferative disorder with overlapping clinical and histopathological features of both mycosis fungoides and primary cutaneous ALCL, as well as features of lymphomatoid papulosis. Read More

    Biological and clinical significance of tryptophan-catabolizing enzymes in cutaneous T-cell lymphomas.
    Oncoimmunology 2017 10;6(3):e1273310. Epub 2017 Feb 10.
    Department of Dermatology and Allergology, University of Helsinki and Helsinki University Central Hospital , Helsinki, Finland.
    Indoleamine 2,3-deoxygenase 1 (IDO1) induces immune tolerance in the tumor microenvironment (TME) and is recognized as a potential therapeutic target. We studied the expression of both IDO1 and the related tryptophan 2,3-dioxygenase (TDO) in several different subtypes of cutaneous T-cell lymphoma (CTCL), and evaluated the kynurenine (KYN) pathway in the local TME and in patient sera. Specimens from the total of 90 CTCL patients, including mycosis fungoides (MF, = 37), lymphomatoid papulosis (LyP, = 36), primary cutaneous anaplastic large cell lymphoma (pcALCL, = 4), subcutaneous panniculitis-like T-cell lymphoma (SPTCL = 13), and 10 patients with inflammatory lichen ruber planus (LRP), were analyzed by immunohistochemistry (IHC), immunofluorescence (IF), quantitative PCR, and/or liquid chromatography-tandem mass spectrometry (LC-MS/MS). Read More

    Imatinib Treatment of Lymphomatoid Papulosis Associated with Myeloproliferative Hypereosinophilic Syndrome Presenting the FIP1L1-PDGFRA Fusion Gene.
    Acta Derm Venereol 2017 Jul;97(7):855-857
    Department of Dermatology, Universitat Autònoma de Barcelona, Hospital del Mar-Parc de Salut Mar, Passeig Marítim 25-29, ES-08003 Barcelona, Spain.

    Primary cutaneous anaplastic large cell lymphoma.
    J Cutan Pathol 2017 Jun 25;44(6):570-577. Epub 2017 Apr 25.
    Department of Pathology, Stanford University School of Medicine, Stanford, California.
    Primary cutaneous anaplastic large cell lymphoma (PC-ALCL) is a CD30+ lymphoproliferative disorder (LPD) of the skin with a relatively good prognosis in the absence of high-stage disease. CD30+ LPDs comprise approximately 25%-30% of primary cutaneous lymphomas and as a group represent the second most common clonal T-cell neoplasm of the skin behind mycosis fungoides. Diagnosis of PC-ALCL relies strongly on clinicopathologic correlation given the potential morphologic, clinical and molecular overlap with the other cutaneous CD30+ LPD, lymphomatoid papulosis, and more aggressive hematolymphoid neoplasms. Read More

    CD30 Lymphoproliferative Disorders of the Skin.
    Hematol Oncol Clin North Am 2017 04;31(2):317-334
    Department of Dermatology, The Center for Cutaneous Oncology, Dana Farber Cancer Institute, Brigham and Women's Hospital, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02115, USA. Electronic address:
    Primary cutaneous CD30 lymphoproliferative disorders encompass lymphomatoid papulosis (LyP), primary cutaneous anaplastic large cell lymphoma (pcALCL), and indeterminate cases. LyP is a benign disorder characterized by recurrent crops of red or violaceous papulonodules. Patients with LyP are at an increased risk of a secondary malignancy. Read More

    Lymphomatoid papulosis - making sense of the alphabet soup: a proposal to simplify terminology.
    J Dtsch Dermatol Ges 2017 Apr 2;15(4):390-394. Epub 2017 Mar 2.
    IPOLFG - Serviço de Anatomia Patológica, Lissabon, Portugal.
    Clinically, lymphomatoid papulosis (LYP) is characterized by recurrent papulonodular lesions. Unlike this stereotypical clinical presentation, the histological spectrum of LYP is very wide, comprising distinct growth patterns, variably sized neoplastic cells, and different immunophenotypes. The revised 2016 WHO classification includes the histological LYP types A to E as well as another type characterized by a specific chromosomal alteration. Read More

    CD30-positive cutaneous lymphoma: report of four cases with an emphasis on clinicopathological correlations.
    An Bras Dermatol 2017 Jan-Feb;92(1):86-91
    Hospital Federal de Bonsucesso - Bonsucesso (RJ), Brazil.
    The classification of cutaneous lymphomas is multidisciplinary and requires the correlation between clinical, histopathological, immunohistochemical, and molecular diagnostic elements. In this article, we present four different cases of CD30-positive T-cell lymphoma with cutaneous manifestations. We compare cases with definitive diagnosis of papulosis lymphomatoid type C, primary cutaneous anaplastic large T-cell lymphoma, systemic anaplastic large T-cell lymphoma with secondary skin involvement, and mycosis fungoides with large cell transformation, highlighting the importance of clinicopathological correlation to classify these cases. Read More

    Aggressive cutaneous T-cell lymphomas.
    Semin Diagn Pathol 2017 Jan 24;34(1):44-59. Epub 2016 Dec 24.
    Ackerman Academy of Dermatopathology, 145 East 32nd, St 10th floor, New York, 10016, NY, USA. Electronic address:
    Cutaneous T cell lymphomas (CTCLs) are heterogeneous, with a prognosis determined in large part by combined clinical, histopathologic, and immunophenotypic features. They are classified under the WHO-EORTC classification of primary cutaneous lymphoma. Whether or not a patient diagnosed with CTCL will experience an aggressive course may not be completely predictable; however, certain subtypes have been proven to be associated with a poor response to therapy and/or short survival. Read More

    Follicular lymphomatoid papulosis with follicular mucinosis: a clinicopathologic study of 3 cases with literature review and conceptual reappraisal.
    J Cutan Pathol 2017 Apr 16;44(4):360-366. Epub 2017 Jan 16.
    Department of Dermatology, University of Iowa, Iowa City, Iowa.
    Lymphomatoid papulosis (LyP), characterized by recurring, waxing and waning, cutaneous papulonodules, is increasingly recognized to represent a heterogeneous collection of pathologically dissimilar subtypes. Recently, a follicular LyP variant was proposed, featuring folliculotropism. Folliculotropism by atypical lymphocytes is conventionally associated with follicular mucinosis and mycosis fungoides (MF), and review of the literature suggests co-occurrence of folliculotropism and follicular mucinosis in LyP to be rare, with only 3 cases identified to date. Read More

    A new era for cutaneous CD30-positive T-cell lymphoproliferative disorders.
    Semin Diagn Pathol 2017 Jan 29;34(1):22-35. Epub 2016 Nov 29.
    Kempf und Pfaltz, Histologische Diagnostik, Zürich, Switzerland; Department of Dermatology, University Hospital Zurich, CH-8091, Zurich, Switzerland. Electronic address:
    Cutaneous CD30+ T-cell lymphoproliferative disorders (CD30+ T-LPD) represent a spectrum encompassing lymphomatoid papulosis (LyP), primary cutaneous anaplastic large-cell lymphoma (pcALCL) and borderline lesions. They share the expression of CD30 as a common phenotypic marker. They differ however in their clinical presentation, the histological features and clinical course. Read More

    Past, present and future of cutaneous lymphomas.
    Semin Diagn Pathol 2017 Jan 28;34(1):3-14. Epub 2016 Nov 28.
    Research Unit Dermatopathology, Department of Dermatology, Medical University of Graz, Auenbruggerplatz 8, 8036 Graz, Austria. Electronic address:
    Primary cutaneous lymphomas represent a broad group of diseases with different clinical, histopathological, phenotypic, molecular, and prognostic features. All cutaneous lymphomas share the same tropism of neoplastic lymphocytes for the skin, but precise classification is paramount for proper management of the patients. Primary cutaneous lymphomas are classified according to the schemes proposed by the European Organization for Research and Treatment of Cancer (EORTC)-Cutaneous Lymphomas Task Force together with the World Health Organization (WHO) in 2005, and the WHO classification of 2008 with the 2016 update. Read More

    Cutaneous lymphoma: Kids are not just little people.
    Clin Dermatol 2016 Nov - Dec;34(6):749-759. Epub 2016 Jul 10.
    Department of Dermatology, University of Connecticut School of Medicine, 263 Farmington Ave, Farmington, CT 06030.
    Cutaneous T-cell lymphomas (CTCLs) are non-Hodgkin lymphomas that predominantly affect older patients. Onset of cutaneous lymphoma in childhood is rare, but it can present as early as the first decade of life. In both adults and children, the diagnosis of cutaneous lymphoma can be challenging because inflammatory dermatoses can mimic CTCL both clinically and histologically. Read More

    Lymphoma of the eyelid.
    Surv Ophthalmol 2017 May - Jun;62(3):312-331. Epub 2016 Nov 26.
    Department of Pathology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark; Department of Ophthalmology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark. Electronic address:
    Lymphoma of the eyelid constitutes 5% of ocular adnexal lymphoma. In previously published cases, 56% of lymphomas of the eyelid are of B-cell origin and 44% are of T-cell origin. The most frequent B-cell lymphomas are extranodal marginal zone lymphoma (27 cases-14%) and diffuse large B-cell lymphoma (18 cases-9%). Read More

    Low-dose radiotherapy for primary cutaneous anaplastic large-cell lymphoma while on low-dose methotrexate.
    Cutis 2016 Oct;98(4):253-256
    Department of Dermatology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, USA.
    Primary cutaneous anaplastic large-cell lymphoma (pcALCL) is part of a spectrum of CD30+ primary cutaneous lymphoproliferative disorders (pcLPDs) that also includes lymphomatoid papulosis (LyP). Localized radiotherapy at doses of 34 to 44 Gy is first-line treatment of pcALCL, but the use of low-dose radiotherapy for pcALCL has not been reported. We present the case of a patient with a history of pcALCL/LyP who was treated with low-dose radiotherapy while on oral low-dose methotrexate (MTX) once weekly. Read More

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