후두암의 임상적 고찰

Glottic region was predominant as 52.8%, supraglottic 46.5%, subglottic 0.7% and advanced cases such as stage III, IV were 69.3% of the patients.

Cervical metastasis was observed 42.5% of the patients. The rate of cervical metastasis according to T-stage was 56.7% in T4, 48.9% in T3, 37.5% in T2 and 11.2% in T1. There were more common in supraglottic than glottic cancer about 4 times.

Initial treatment modalities were surgery only in 20.5%, radiation only in 31.5%, and combined surgery with postoperative radiation in 45.7%.

Overall 5-year survival rate was 52.6%, and showed 80.7% in stage I, 56.2% in stage II, 48.3% in stage III, and 44.8% in stage IV.

Glottic cancer showed better prognosis (5-year survival rate 65.2%) than supraglottic cancer(5-year survival rate 39.6%).

5-year survival rate according to treatment modality was 78.7% in surgery only group, 53.8% in radiation only group, and 48.5% in surgery with postoperative radiation group.

In cases of cervical metastasis, 5-year survival rate was decreased to 39.5%.