label: Stage IV Gestational Trophoblastic Tumor AJCC v7
label_lc: stage iv gestational trophoblastic tumor ajcc v7
description: Stage IV includes: (Any T, M1b, Risk factors: unknown); IVA (Any T, M1b, Risk factors: low risk); IVB (Any T, M1b, Risk factors: high risk).  M1b: All other distant metastasis.  (AJCC 7th ed.)