Type D Lymphomatoid Papulosis: An uncommon Variant. A case report and review of the literature

Abstract

Lymphomatoid papulosis (LyP) is an indolent form of primary cutaneous T-cell lymphoma, currently classified together with primary cutaneous anaplastic large T-cell lymphoma within the spectrum of CD30-positive lymphoproliferative disorders. It is characterized by presenting as a clinically benign but histopathological malignant disease. Clinical features consist in recurrent waxing and waning red papules. Histopathologically, there are 4 variants recognized, Type A or Hystiocitic type, being the most frecuent of all, Type B or Mycosis fungoides-like, Type C or Anaplastic large-cell lymphoma-like and Type D, the most recently described and uncommon variant with features similar to Cutaneous Aggressive CD8-Positive Cytotoxic T-Cell Lymphoma. We present a case of a 22-year-old female with multiple papules and nodules in trunk and limbs that after histopathological and immunochemical examination was compatible with Type D LyP. It is important to report this case, as a perfect example of an uncommon variant of LyP, with emphasis in its typical clinical, histopathological and inmunohistochemical findings and review of the literature.

Keywords

• type D lymphomatoid papulosis
• CD30-positive lymphoproliferative disorder
• CD8-positive lymphoproliferative disorder