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…
Angioimmunoblastic T-cell lymphoma is a follicular T-helper–derived neoplasm displaying a peculiar morphologic appearance and biological complexity. New mutations have been described that contribute to elucidating the underlying pathogenetic events. The…
Peripheral T-cell lymphoma and natural killer/T-cell lymphomas (PT/NKCL) make up a diverse subgroup of non-Hodgkin’s lymphomas characterized by an aggressive clinical course. The use of hematopoietic stem cell transplantation (HSCT)…
Mycosis fungoides and the Sezary syndrome (SS) are rare lymphomas of CD4 + helper T cells. There is stagewise progression from patch/plaques to thicker tumor lesions/diffuse erythroderma. Blood involvement is…
Peripheral T-cell lymphomas represent 10% to 15% of non-Hodgkin lymphomas and comprise more than 20 different entities. Treatment of very rare T-cell lymphomas can be challenging because there are no…
Adult T-cell leukemia/lymphoma (ATLL) is a rare T-cell disorder that is etiologically linked to chronic infection with human T-cell lymphotropic virus type 1. ATLL is divided into four subtypes: acute,…
Extranodal natural killer/T-cell lymphoma, nasal type (ENKL), is a rare subtype of non-Hodgkin lymphoma, and its treatment outcome was previously poor. Novel treatment strategies have improved the outcomes of ENKL…
Anaplastic large cell lymphoma (ALCL) is one of the most common peripheral T-cell lymphomas, and the incidence is higher in blacks than non-Hispanic whites. ALK-positive and ALK-negative ALCL are distinct…
Peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS), corresponds with a heterogeneous group of mature T-cell lymphomas. Recent gene expression profiling studies have identified at least two molecular subgroups (GATA3 and…
Eric D. Jacobsen, MD, Editor The peripheral T-cell lymphomas are a group of heterogeneous mature T-cell neoplasms with disparate biology and heterogeneous clinical behavior ranging from very indolent to extremely…
