頸部に発生したCastlemanリンパ腫の1例

CASTLEMAN'S LYMPHOMA OP THE NECK, A CASE REPORT

　I．はじめに

　臨床上，頸部腫瘤および頸部リンパ節腫脹は，われわれ耳鼻科医にとつて日常しばしば遭遇する所見であり，その原因も実にさまざまなものがある。

　1954年，Castleman^1）が縦隔部に発生した胸腺腫類似の腫瘤を"hyperplasia of mediastinallymph nodes"と記載し，1956年になり同様の組織像を呈する13例を集め"localized mediastinallymph node hyperplasia resembling thymoma"と名称し胸腺腫から分離した^2）。その後同様の症例が数多く報告され，現在までおよそ200例を超えている。縦隔以外にも本腫瘤の発生することが知られており，頸部に発生するものも約16％に認められている。

　A 53-year-old man was seen at Tokai University Hospital, in June, 1978, complaining of an unesthetic mass that had been present in the left cervical region since 1974. The mass had gradually increased in its size but always been asymptomatic. Laboratory data revealed polycythemia but other findings were within normal limits. On Aug. 9, 1978, extirpation of the tumors and the radical neck dissection were performed under general anesthesia. The specimen consisted of more than 10 separated masses, size of which ranged from 3.5×3×3 to 0.5×0.5×0.5cm.Histological examination of the specimens revealed "Castleman's Lymphoma", first discri bed by Castleman in 1954.