title: Subcutaneous plasmacytomas with tropism to sites of previous trauma in a multiple myeloma patient treated with an autologous bone marrow transplant.
abstract: We report the case of a 59-year-old woman with Durie-Salmon stage IIIB IgGkappa multiple myeloma (MM), who presented 83 days after autologous hematopoietic stem cell transplant (HSCT) with multiple subcutaneous plasmacytomas. These lesions were confined exclusively to sites where the patient had sustained local trauma. The patient had no pre-transplant history of extramedullary disease and no evidence of plasma cells in the peripheral blood at any time throughout the course of her disease. This case represents the first report of refractory MM presenting as multiple subcutaneous plasmacytomas with specific tropism to sites of previous trauma. Selection of tumor cell subclones with unique chemokine receptor expression profiles that may explain this clinical observation is discussed.
authors.affiliation: Department of Medical Scientist Training Program (MSTP), Medical College of Wisconsin, Milwaukee, USA.
authors.forename: Michael D
authors.initials: MD
authors.lastname: Rosenblum
authors.forename: Christopher N
authors.initials: CN
authors.lastname: Bredeson
authors.forename: Chung-Che
authors.initials: CC
authors.lastname: Chang
authors.forename: J Douglas
authors.initials: JD
authors.lastname: Rizzo
mesh_terms: D016026:Bone Marrow Transplantation; D002405:Catheterization, Central Venous / Q000009:adverse effects; D002465:Cell Movement; D018925:Chemokines / Q000502:physiology; D017809:Fatal Outcome; D005260:Female; D006258:Head and Neck Neoplasms / Q000556:secondary; D006801:Humans; D007275:Injections, Intravenous / Q000009:adverse effects; D007279:Injections, Subcutaneous / Q000009:adverse effects; D008875:Middle Aged; D009101:Multiple Myeloma / Q000473:pathology / Q000556:secondary* / Q000628:therapy; D014411:Neoplastic Stem Cells / Q000473:pathology; D009928:Organ Specificity; D018962:Phlebotomy / Q000009:adverse effects*; D012008:Recurrence; D012867:Skin / Q000293:injuries*; D012878:Skin Neoplasms / Q000556:secondary*; D014182:Transplantation, Autologous
chemical_list: D018925:Chemokines