title: So-called pseudosarcoma of the esophagus: nodal metastases of the spindle cell element.
abstract: A polypoid lesion of the esophagus with all the morphological features of a so-called pseudosarcoma produced nodal metastases of the spindle cell element. Ultrastructurally, these spindle cells showed only fibroblastic features. The findings in this case and a review of cases reported as pseudosarcoma of the esophagus lend little support for the contention that they differ from cases categorized as carcinosarcoma of the esophagus.
mesh_terms: D000368:Aged; D002296:Carcinosarcoma / Q000473:pathology; D004938:Esophageal Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D005350:Fibroma / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male