title: A case of extramedullary plasmacytoma of the larynx.
abstract: An 84-year-old male with a complaint of hoarseness was examined. A mass lesion was recognized in the false vocal fold. The tumor was excised and found to consist of atypical plasmacytes. Immunopathological examination revealed that leukocyte common antigen (CD45), UCHLI (CD45RO), CD3 and L26 (CD20) were negative and that CD79 and Vs38C were positive. Neither uric Bence-Jones protein nor serum M-protein were observed. No other bony abnormalities were recognized on X-ray examinations including both bone and Ga scintigraphy. No atypical plasmacyte infiltration was observed in bone marrow. Our final diagnosis was extramedullary plasmacytoma of the larynx. Radiotherapy was performed following surgery. The tumor did not progress to multiple myeloma and no recurrence has been observed after 2 years.
authors.affiliation: Department of Otolaryngology, Head and Neck Surgery, Kitasato Institute Medical Center Hospital, Saitama, Kanagawa, Japan. kamijo-t@kitasato.or.jp
authors.forename: Takahiro
authors.initials: T
authors.lastname: Kamijo
authors.forename: Katsuhide
authors.initials: K
authors.lastname: Inagi
authors.forename: Masami
authors.initials: M
authors.lastname: Nakajima
authors.forename: Tadashi
authors.initials: T
authors.lastname: Motoori
authors.forename: Katsumi
authors.initials: K
authors.lastname: Tadokoro
authors.forename: Shougo
authors.initials: S
authors.lastname: Nishiyama
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D007822:Laryngeal Neoplasms / Q000175:diagnosis* / Q000628:therapy*; D008297:Male; D010954:Plasmacytoma / Q000175:diagnosis* / Q000628:therapy*; D012983:Soft Tissue Neoplasms / Q000175:diagnosis* / Q000628:therapy*