TY - JOUR AU - Neide Pereira AU - Ana Brinca AU - Óscar Tellechea AU - Margarida Gonçalo PY - 2013/01/13 Y2 - 2024/03/28 TI - METASTATIC CUTANEOUS PLASMOCYTOMA IN A PATIENT WITH MULTIPLE MYELOMA JF - Journal of the Portuguese Society of Dermatology and Venereology JA - SPDV VL - 70 IS - 3 SE - Case Reports DO - 10.29021/spdv.70.3.19 UR - https://revista.spdv.com.pt/index.php/spdv/article/view/19 AB - Introduction: In multiple myeloma, the cutaneous lesions are rare and usually occur in late stages of MM as a reflection of increased tumour cell burden. Case report: The authors present the case of a 66 year-old woman with IgG lambda multiple myeloma that, after 16 months and apparently under control haematological, developed a tender and firm erythemato-violaceous plaque, on the back of the right thigh. A diagnosis of cutaneous plasmocytoma was confirmed by skin biopsy. Local radiotherapy induced a complete regression of skin lesion, but the patient died 4 months later, duo to uncontrolled multiple myeloma. Discussion: Secondary cutaneous plasmocytoma usually arise from direct spread from underlying bone, manifest as erythematous to violaceous infiltrated nodules or plaques, are extremely rare and indicate a poor prognosis, as in our case. The presentation as an erysipela-like lesion with no underlying bone disease is even rarer.KEYWORDS – Multiple myeloma; Plasmacytoma; Skin neoplasms/secondary. ER -