Skin diseases ranging from infective dermatitis to cutaneous lymphoma have been associated with human T cell leukemia virus (HTLV) type I. A generalized exfoliative papillated dermatopathy occurred in a rabbit 20 months into a course of chronic HTLV-I infection. Biopsies revealed epidermotropic T cell infiltrates, including Sezary-like cells, that resulted in a pattern mimicking cutaneous T cel...

BACKGROUND Vorinostat (suberoylanilide hydroxamic acid, SAHA), an inhibitor of class I and II histone deacetylases, has been approved for the treatment of cutaneous T-cell lymphoma. In spite of emerging information on the effect of vorinostat in many types of cancer, little is yet known about this drug's mechanism of action, which is essential for its proper use in combination therapy. We inves...

Background: Primary cutaneous T cell lymphoma is a diverse and rare group of diseases with clinical manifestations that, if not biopsied, are easily confused benign skin diseases. Objective: To determine some features primary lymphomas classify them according to the 2018 update World Health Organization European Organisation for Research Treatment Cancer classification. Methods: case series stu...

Subcutaneous panniculitis-like T-cell lymphoma (SPTCL) and primary cutaneous gamma delta T-cell lymphoma (PCGD-TCL) were initially both classified as subcutaneous panniculitis-like T-cell lymphoma. In 2008, SPTCL with alpha-beta T-cell receptor subtype was separated from primary cutaneous gamma delta T-cell lymphomas (PCGD-TCL). We report four pediatric cases that demonstrate the heterogeneity ...

Primary cutaneous anaplastic large T-cell lymphoma CD30+ is a rare lymphoma, which belongs to the group of lymphoproliferations CD30+. It characterized by an excellent prognosis and treatment therefore not very aggressive. However, its histological molecular characteristics have many similarities with lymphoproliferative diseases whose completely different. For this reason, it important study p...

The primary cutaneous CD30-positive (CD30+) T-cell lymphoproliferative disorders are a group of largely indolent diseases that manifest as nodules or tumors of the skin. The European Organisation for Research and Treatment of Cancer (EORTC) has developed a modification of the World Health Organization (WHO) lymphoma classification system that specifically categorizes these entities. According t...

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ALCL: anaplastic large cell lymphoma CL: composite lymphoma EBV: Epstein-Barr virus MF: mycosis fungoides INTRODUCTION Patients with mycosis fungoides (MF) are at increased risk of a second malignant neoplasm, especially lymphoma. We report a sexagenarian with a 14-year history of patch MF, stage IB, who had intravascular cutaneous anaplastic large cell lymphoma (ALCL) and cutaneous composite l...