Contralateral cervical lymph node metastasis in piriform sinus carcinoma.
- Author:
Huai-an YANG
1
;
Ryuichi HAYASHI
;
Satoshi EBIHARA
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Aged, 80 and over; Carcinoma, Squamous Cell; pathology; surgery; Female; Humans; Hypopharyngeal Neoplasms; pathology; surgery; Lymph Nodes; pathology; Lymphatic Metastasis; pathology; Male; Middle Aged; Neck Dissection; Neoplasm Staging; Prognosis; Retrospective Studies; Treatment Outcome
- From: Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2005;40(7):533-535
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo evaluate relative factors affecting contralateral cervical lymph node metastasis in piriform sinus carcinoma.
METHODSNinety-six cases of piriform sinus carcinoma with no preoperative treatments were selected. The contralateral cervical lymph node metastasis and relative factors were analyzed during operation or postoperative follow-up. The contralateral cervical metastasis was defined as followed: 1 contralateral cervical metastasis was confirmed pathologically after bilateral neck dissection (pN2c) or 2 contralateral cervical metastasis was found firstly during postoperative follow-up and the recurrence of primary lesion was excluded.
RESULTSThe incidence of contralateral cervical metastasis was 32% (31/96). According to the T stage, the incidence of contralateral cervical metastasis was T1: 0% ,T2: 18%, T3: 37%, T4: 32% and to the N stage N0: 12%, N1: 13%, N2a: 17%, N2b: 39%, N2c: 100%, and N3: 75%. For primary lesions beyond midline the incidence of contralateral cervical metastasis was 52% but for those remaining on ipsilateral side it was 18%.
CONCLUSIONSContralateral cervical lymph node showed higher metastatic incidence with higher T and N stage. When the primary lesions invaded beyond midline, the contralateral cervical metastasis increased greatly and neck dissection should be selected positively.
