食道リンパ肉腫の1例

A Case of Lymphosarcoma of the Esophagus

　消化管に発生する腫瘍の大半は上皮性腫瘍であり，非上皮性腫瘍は比較的少ないものであるが，部位によっても，発生頻度にかなりの差がある．

　本稿では，食道に生じたリンパ肉腫の1手術例を報告し，併せて，本邦における消化管の非上皮性腫瘍の文献的報告を集計し，若干の考察を加える．

　Malignant non-epithelial tumors of the esophagus have rarely been reported in Japan. Until 1968 there have been only 11 reported cases of leiomyosarcoma, 11 of melanoma, 6 of unclassified anaplastic sarcoma, 4 of fibrosarcoma, 1 each of hemangiosarcoma and rhabdomyosarcoma and 3 of malignant lymphoma.

　A 57-year-old man with comlaints of cough and sputum was diagnosed to harbor a mediastinal tumor by x-ray examination. The operation revealed a fusiform tumor, 12×6 cm in size, in the upper one third of the esophagus. Microscopically the tumor was diagnosed as Lymphosarcoma.