下顎歯肉に発生したIgA-λ型髄外形質細胞腫の1例

概要

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A rare case of extramedullary plasmacytoma arising from mandibular gingiva is presented. A 33-year-old man with localized swelling in the gingiva of the mandibular incisor region was referred for consultation. The swelling was diagnosed as plasmacytoma by biopsy, and therefore the patient underwent a series of clinical examinations. The examinations failied to establish a diagnosis of multiple myeloma. The lesion was resected with part of the mandibular bone, because radiographs indicated resorption of the bone adjacent to the gingival lesion. PAP method, which is an immunohistochemical technique for staining, revealed that the tumor was an Ig-λ type of extramedullary plasmacytoma. Recurrence and metastasis of the tumor have not been noted during a 2-year follow-up period after resection.
社団法人日本口腔外科学会の論文