Hypopigmented interface T-cell dyscrasia: A form of cutaneous T-cell dyscrasia distinct from hypopigmented mycosis fungoides Academic Article uri icon

Overview

MeSH Major

  • Hypopigmentation
  • Lymphoproliferative Disorders
  • Mycosis Fungoides
  • Skin Neoplasms
  • T-Lymphocytes

abstract

  • Hypopigmentation in cutaneous T-cell lymphoproliferative disease should not always be equated with hypopigmented mycosis fungoides (MF). A form of hypopigmented pre-lymphomatous T-cell dyscrasia falling under the designation of the so-called hypopigmented interface variant of T-cell dyscrasia has recently been proposed. The aim of the present study was to establish hypopigmented interface T-cell dyscrasia as its own entity apart from other T-cell dyscrasias and MF using a patient case series. Twenty four cases of hypopigmented interface T-cell dyscrasia were identified in the dermatopathology database of Weill Medical College of Cornell University. There were 17 females and seven males (mean age, 36¬†years). In children and adolescents, the patients were most commonly of African American extraction. Truncal photo-protected areas manifesting as large solitary patches or multiple smaller macules were characteristic; disease progression to MF occurred in only one patient. The lesions responded to topical steroids and light therapy. The pathology was defined by a cell poor interface associated with degeneration of keratinocytes and melanocytes, and by lymphocytes whose nuclei showed low-grade cerebriform atypia, and which expressed a significant reduction in CD7 and CD62L expression. In 50% of the cases, the implicated cell type was of the CD8 subset. Clonality was not identified. Hypopigmented interface T-cell dyscrasia is a distinct entity separate from and rarely progressive to MF.

publication date

  • January 2014

Research

keywords

  • Academic Article

Identity

Language

  • eng

Digital Object Identifier (DOI)

  • 10.1111/1346-8138.12458

PubMed ID

  • 24806661

Additional Document Info

start page

  • 609

end page

  • 17

volume

  • 41

number

  • 7