喉頭リンパ腫の1症例

A CASE OF LARYNGEAL LYMPHOMA

　緒言

　近年，非リンパ節起原性のリンパ組織よりなる良性腫瘍が直腸^8），唾液腺^6），皮膚^13），縦隔洞^2），軟部組織^12），肺等^14）に報告され，その名称はいろいろで，simple lymphoma^5），benign lymphoepithelial tumor^6），lymphocytoma^13），lymphnodal hamartoma^1），giant hemolymph node^7），tumor-like proliferation of lymphoid tissue^3），pseudolymphoma^14）等と呼ばれている。したがつて本腫瘍の組織発生には，いまだ定説はないと思われる。

　一方，本腫瘍の耳鼻咽喉科領域での報告例は，著者の検索した範囲では内外ともにほとんど見当らず，人体他部位に報告されている本腫瘍と，その臨床経過，肉眼的所見および顕微鏡的所見とを比較検討し，さらに従来の組織発生に関する諸説に検討を加え，本腫瘍の本態について考察を加えてみたい。

　A case of laryngeal lymphoma was found in a woman, aged 44. Her chief complaints were persistent huskiness of voice for 5 years and a graclual increase of dyspnea.

　Laryngagcopy revealed a pigeon-egg sized tumor filling the left half of the laryngeal cavity; with biopsy examination laryngeal sarcoma was suspected.

　Laryngectomy was perfomed. A dumb-bell shaped tumor was removed. This tumor had probably developed from the left aryepiglottic fold and had extended downwards the left inner wall of the larynx covering the left vocal cord and occupied the prelaryngeal space beyond the median line.

　Macroscopically the tumor had a mooth surface; the cut-surface showed it was composed of compact and homogeneous, Structures greyish white in color.

　Microscopically it was found to be consisting of lymphocytic mass with normal lymph follicles. There was no evidence of sinus formation nor any sign of being malignant in nature.