Extramedullary plasmacytoma presenting as a rapidly growing lateral neck mass: A case report

Abstract

Introduction: We detail the rare clinical presentation of an extramedullary plasmacytoma as a rapidly growing lateral neck mass. The pathology and its management are discussed. A rapidly growing extramedullary plasmacytoma infiltrating the cervical spine. Case Report: A 53-year-old male presented to our emergency room with a one-month history of worsening left-sided neck pain and an enlarging lateral neck mass. Evaluation with cervical imaging and laboratory analysis were performed. The patient underwent a soft tissue biopsy with subsequent spinal cord decompression and an occipital-cervical fusion. Pathology revealed the diagnosis of plasmacytoma. The patient was referred to oncology and radiation therapy for adjuvant treatment. Conclusion: This case represents the unusual presentation of a rapidly growing extramedullary plasmacytoma to the soft tissues of the neck with subsequent erosion of the base of the skull and upper cervical vertebral spine. It was treated effectively with posterior cervical decompression, arthrodesis, and adjuvant radiation and chemotherapy.