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Primary Cutaneous Anaplastic Large Cell Lymphoma (primary + cutaneous_anaplastic_large_cell_lymphoma)

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Medical Sciences100%

Selected Abstracts

Non-mycosis fungoides cutaneous T-cell lymphoma: reclassification according to the WHO-EORTC classification

JOURNAL OF CUTANEOUS PATHOLOGY, Issue 5 2010
Joshua Weaver
Background: Non-mycosis fungoides (non-MF) primary cutaneous T-cell lymphomas (PCTCL) are heterogeneous and divided into subgroups by the World Health Organization-European Organization for Research and Treatment of Cancer (WHO-EORTC) classification of cutaneous lymphomas. We report the first North American series to examine the applicability of the classification, compare our findings with the predominant European literature and confirm the significance of separation into the indolent and aggressive groups. Methods: Forty-four non-MF PCTCL cases with available tissue for phenotyping, adequate clinical staging information and follow-up were reclassified according to the WHO-EORTC classification. Results: Non-MF PCTCL had a longer overall survival (OS) (13.8 years) compared with secondary cutaneous T-cell lymphoma (SC-TCL) (2.5 years). Primary cutaneous anaplastic large cell lymphoma (PC-ALCL) had the most favorable outcome (OS 14.1 years), whereas secondary and primary peripheral T-cell lymphoma, unspecified had the shortest OS (2.5 and 2.4 years, respectively). Primary cutaneous CD4+ small/medium-sized pleomorphic T-cell lymphoma (CTLCD4) appeared to have a favorable course. Conclusions: Most non-MF PCTCL can be classified according to the WHO-EORTC classification. The relative frequencies are similar to European experience. Non-MF PCTCL is a heterogeneous group with a favorable outcome compared to SC-TCL, especially PC-ALCL and CTLCD4. Separation of non-MF PCTCL into indolent and aggressive groups appears clinically significant and may provide direction for therapeutic decisions. Weaver J, Mahindra AK, Pohlman B, Jin T, His ED. Non-mycosis fungoides cutaneous T-cell lymphoma: reclassification according to the WHO-EORTC classification. [source]

Evidence for polyclonal infection of Epstein,Barr virus in a patient with primary cutaneous anaplastic large cell lymphoma

CLINICAL & EXPERIMENTAL DERMATOLOGY, Issue 4 2004
T. Shimauchi
Summary We report a case of CD30 + primary cutaneous anaplastic large cell lymphoma. The lymphoma cells were shown to express the Epstein,Barr virus (EBV)-encoded small RNAs by in situ hybridization and to have EBV genomes by PCR, whereas no monoclonal band was detected by Southern blot analysis using the EBV terminal repeat probe. These data suggested polyclonal infection by EBV, which provides evidence that EBV plays little part in the pathogenesis of this tumour even in the infected cases. [source]

Co-existent primary cutaneous anaplastic large cell lymphoma and lymphomatoid papulosis

CLINICAL & EXPERIMENTAL DERMATOLOGY, Issue 6 2003
G. Dawn
Summary We describe the case of a 37-year-old female with a history of psoriasiform dermatitis who presented with multicentric primary cutaneous CD30-positive anaplastic large T cell lymphoma (ALCL). Despite aggressive systemic therapy, the patient suffered multiple relapses and the lymphoma spread to cervical and inguinal lymph nodes. Later in her clinical course it was appreciated that she was also suffering from lymphomatoid papulosis (LyP). The case illustrates the overlapping clinical, histological and immunophenotypic features of ALCL and LyP, conditions which represent a spectrum of CD30-positive lymphoproliferative disease. A multidisciplinary approach between dermatologist, oncologist and pathologist is essential for the optimal management of these complex conditions. [source]