title: [Pathologic feature of occult lymphatic metastasis in supraglottic carcinoma].
abstract: OBJECTIVE
  To study the pathologic features of occult lymphatic metastasis in patients with supraglottic carcinoma and its implication in treatment.
  
  
  METHODS
  Serial sections of 153 neck dissection specimens in 100 patients with supraglottic carcinoma were studied under microscope.
  
  
  RESULTS
  Clinically negative nodes had been proved histologically positive in 58 specimens (38%) and 51 occult nodes, size ranged from 0.5 cm to 2.6 cm with average of 1.1 cm. The distribution of metastastic lymph nodes was 1 in level I (2%), 37 in level II (73%), 12 in level III(23%) and 1 in level IV(2%). Among the 51 nodes, 21(41%) were in early stage, 18 (35%) in growth stage, 7(14%) in full stage, 5(10%) were extracapsular.
  
  
  CONCLUSIONS
  Occult metastasis rate of supraglottic carcinoma is as high as 38%, selective neck dissection is recommended for the surgical treatment of this disease.
authors.affiliation: Department of Otorhinolaryngology, First Affiliated Hospital, Chinese Medical University, Shenyang 110001.
authors.forename: W
authors.initials: W
authors.lastname: Ji
authors.forename: J
authors.initials: J
authors.lastname: Yu
authors.forename: C
authors.initials: C
authors.lastname: Guan
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D005931:Glottis; D006801:Humans; D007822:Laryngeal Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D037981:Neck Dissection; D015996:Survival Rate