Assessment of the revised International Federation of Gynecology and obstetrics staging for early invasive squamous cervical cancer.
OBJECTIVE
The aim of this study was to investigate the value of the International Federation of Obstetrics and Gynecology (FIGO) classification (1995) for early invasive cervical cancer. Methods. Clinico-pathological analysis was performed in 402 patients with invasive squamous cervical cancer in whom the depth of stromal invasion was 5 mm or less.


RESULTS
The incidence of lymph node metastasis was 1.2% (1/82) in patients with 3 mm or less depth of invasion; the node-positive patient was in stage IA1. The incidence of lymph node metastasis was 6.8% (5/73) in patients with 3-5 mm depth of invasion; this increased with increasing horizontal spread from 3.4% for 7 mm or less to 9.1% for more than 7 mm. None of the patients in this series had metastasis to the parametrial tissues. Of 4 patients with recurrence, 3 had horizontal spread of more than 7 mm and the remaining patient was in stage IA2.


CONCLUSIONS
The FIGO definition of early squamous cervical cancer is generally acceptable in its present form.
Department of Gynecology, Cancer Institute Hospital, 1-37-1, Kami-Ikebukuro, Toshima-ku, Tokyo, 170, Japan.
N
N
Takeshima
K
K
Yanoh
T
T
Tabata
K
K
Nagai
Y
Y
Hirai
K
K
Hasumi
D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D006176:Gynecology; D006801:Humans; D008207:Lymphatic Metastasis; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D009774:Obstetrics; D012955:Societies, Medical