@article{oai:niigata-u.repo.nii.ac.jp:00022611,
 author = {佐々木, 亮},
 issue = {2},
 journal = {新潟医学会雑誌, 新潟医学会雑誌},
 month = {Feb},
 note = {Twenty three cases of nerve sheath tumor of the stomach were selected among 152 cases of non-epithelial spindle cell tumors of the stomach by using immunohistochemical staining of antiS-100 protein antigen. Ultrastructural examination was performed on three cases. Nineteen cases of the tumor arose in the proper muscle layer and four cases in the lamina propria. They were histologically divided into the followings; (1) spindle cell type (17 cases), (2) spindle cell + epithelioid cell type (4 cases), and (3) myxoid type (2 cases). The tumors lacked a capsule, two cellular patterns of Antoni type A and type B, and palisading arrangement, which were diagnostic features of a schwannoma of the soft part tissue. Other histological characteristics of the tumors arising from the proper muscle layer were that the tumor cells showed infiltrative growth intermingling with muscle fibers and lymphoid cells surrounded the peripheries of the tumor. Ultrastructurally the tumor cell was identified as neoplastic Schwann cell with the presence of a continuous external lamina and complicatedly intermingling cell prcesses. Small numbers of fibroblastoid cells were observed. Long spacing collagen (Luse body) was absent in the stroma. The conclusion is that nerve sheath tumor of the stomach is different from that of the soft part tissue and should be classified as another entity.},
 pages = {122--130},
 title = {胃原発神経鞘腫瘍の臨床病理学的検討},
 volume = {104},
 year = {1990}
}