[The prognostic significance of the extralaryngeal microscopic extension of a T3 glottic carcinoma].
Incidence of microscopic infiltration of the laryngeal framework, with or without extra-laryngeal extension, was studied retrospectively in a series of 63 patients treated surgically for glottic T3 carcinomas in order to establish prognostic values. The results of histopathological examination revealed neoplastic invasion of the fibro-cartilaginous skeleton in 46 of the patients examined and in half of these microscopic diffusion in peri-laryngeal tissue. As far as prognosis is concerned, there was a clear-cut correlation between a decrease in survival rates and a contemporaneous increase in the real extension of the neoplasia, even if microscopic. In fact the NED survival rate of confirmed T3 patients was 85% while in cases reclassified as pT4, it was 64% and 47% on the basis on the absence or presence of extra-laryngeal extension. With these observations it is possible to affirm that the major staging is also attributable to cases with initial infiltration of the "laryngeal framework" without an extensive extension toward peri-laryngeal tissue. As far as T recurrences are concerned, a high incidence of relapse of the neoplasia was observed principally in the cases with extra-cartilaginous diffusion. This observation may have a predictive role and therefore direct post-surgery follow-up as well as eventual complementary treatment.
Fiorella
R
R
Istituto Policattedra di ORL, Università di Bari.
Di Nicola
V
V
Resta
L
L
Troia
M
M
D002277:Carcinoma / Q000453:epidemiology / Q000401:mortality* / Q000473:pathology / Q000601:surgery; D016009:Chi-Square Distribution; D005500:Follow-Up Studies; D005931:Glottis / Q000473:pathology; D006801:Humans; D007558:Italy / Q000453:epidemiology; D007822:Laryngeal Neoplasms / Q000453:epidemiology / Q000401:mortality* / Q000473:pathology / Q000601:surgery; D007825:Laryngectomy; D008297:Male; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local / Q000453:epidemiology; D009367:Neoplasm Staging; D011379:Prognosis; D012189:Retrospective Studies
Significato prognostico dell'estensione microscopica extralaringea nel carcinoma T3 glottico.