title: Signet ring cell primary cutaneous CD30+ lymphoproliferative disorder presenting as a monomorphic T-cell posttransplant lymphoproliferative disease.
abstract: T-cell posttransplant lymphoproliferative disorders are rare, with peripheral T-cell lymphoma not otherwise specified being the most common type. Although cases of the signet ring cell variant of primary cutaneous CD30+ lymphoproliferative disorder have been reported, such cases have not been described in the posttransplant setting. We describe a case with emphasis on the special contextual differential diagnostic considerations.
authors.affiliation: Eastern Dermatology and Pathology, Greenville, NC, USA. papalas@easterndermatology
authors.forename: John A
authors.initials: JA
authors.lastname: Papalas
authors.forename: Evan L
authors.initials: EL
authors.lastname: Kulbacki
authors.forename: H Kim
authors.initials: HK
authors.lastname: Park
authors.forename: Eric R
authors.initials: ER
authors.lastname: Howell
mesh_terms: D014408:Biomarkers, Tumor / Q000032:analysis*; D001706:Biopsy; D016027:Heart Transplantation / Q000009:adverse effects*; D006801:Humans; D007150:Immunohistochemistry; D007166:Immunosuppressive Agents / Q000009:adverse effects; D017730:Ki-1 Antigen / Q000032:analysis*; D016410:Lymphoma, T-Cell, Cutaneous / Q000209:etiology / Q000235:genetics / Q000276:immunology / Q000473:pathology*; D008232:Lymphoproliferative Disorders / Q000209:etiology / Q000235:genetics / Q000276:immunology / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012878:Skin Neoplasms / Q000209:etiology / Q000235:genetics / Q000276:immunology / Q000473:pathology*
chemical_list: D014408:Biomarkers, Tumor; D007166:Immunosuppressive Agents; D017730:Ki-1 Antigen