title: Histogenesis and clinicopathological characteristics of superficially spreading carcinoma of the esophagus.
abstract: To explore the possible histogenesis of superficially spreading carcinoma of the esophagus, the clinicopathological features of these tumors (n = 44) were compared with those of ordinary superficial carcinoma (n = 163). Tumors of a heterogeneous histological type and having in situ carcinoma components were significantly more common (P < .05), and the number of residual squamous islands was significantly greater (P < 0.05) in the former group than the latter. Furthermore, the tumor size was not different among in situ, intramucosal, and submucosal carcinomas of the former, whereas the tumors became larger according to the depth of invasion in the latter group. These results indicate that the collision of multiple simultaneously developing superficial tumors is a plausible histogenesis of superficially spreading carcinoma of the esophagus.
authors.affiliation: The First Department of Surgery, Niigata University School of Medicine, Japan. shirok@med.niigata-u.ac.jp
authors.forename: S
authors.initials: S
authors.lastname: Kuwabara
authors.forename: T
authors.initials: T
authors.lastname: Nishimaki
authors.forename: S
authors.initials: S
authors.lastname: Komukai
authors.forename: T
authors.initials: T
authors.lastname: Kanda
authors.forename: T
authors.initials: T
authors.lastname: Suzuki
authors.forename: K
authors.initials: K
authors.lastname: Hatakeyama
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle; D002277:Carcinoma / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D004938:Esophageal Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D016629:Esophagectomy / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness / Q000473:pathology*; D009367:Neoplasm Staging; D011336:Probability; D011379:Prognosis; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D018709:Statistics, Nonparametric; D016019:Survival Analysis; D016896:Treatment Outcome