Polypoid adenosquamous carcinoma of the esophagus with prominent spindle cells. Report of a case with immunohistochemical and ultrastructural studies
Orsatti, G.; Corvalan, A.H.; Sakurai, H.; Choi, H.S.
Archives of Pathology and Laboratory Medicine 117(5): 544-547
1993
ISSN/ISBN: 0003-9985 PMID: 7683870 Document Number: 416537
We report a case of spindle-cell adenosquamous carcinoma of the esophagus. This represents the third case in the worldwide literature in which an esophageal polypoid tumor contains adenosquamous carcinoma rather than the usual squamous cell carcinoma in addition to a prominent spindle-cell element. The spindle-cell component displayed positive immunoreaction for both keratin and vimentin, as expression of bidirectional differentiation within a single neoplasm.