Tahaa – Polynesia

FIGO stages and scores

SOGC/GOC Clinical Guideline #408, January 2021

  • Staging applies to all GTNs.
  • The risk score does not apply to PSTT and ETT and changes during the recurrence (dynamic score staging).
  • Only pulmonary lesions visible on chest X-ray are considered in the score.
  • The presence of lung metastases of < 2 cm does not affect the resistance to chemotherapy or the time to remission.
  • After a diagnosis of GTN, the stage of the disease and the risk score are established in order to plan the treatment.
  • Imaging examinations should also be performed in case of PSTT, ETT and relapse of GTN.
  • If brain imaging is equivocal, lumbar puncture may aid in the diagnosis if the ratio of cerebrospinal fluid to serum hCG is > 1:60.

2021. Guideline No. 408: Management of Gestational Trophoblastic Diseases. Eiriksson L, Dean E, Sebastianelli A, Salvador S, Comeau R, Jang JH, Bouchard-Fortier G, Osborne R, Sauthier Ph. J Obstet Gynaecol Can;43(1):91-105.

Modified on 12/23/2023