A G3P2 at 32 weeks with two prior uterine surgeries presents with painless bright-red bleeding. Ultrasound reveals placenta previa with the placenta appearing to invade through the uterine serosa into the bladder. The FIGO 2019 classification for this placental invasion grade is:
- A Placenta accreta (Grade 1)
- B Placenta increta (Grade 2)
- C Placenta percreta (Grade 3b) ✓
- D Placenta percreta (Grade 3c)
Correct answer: C. Placenta percreta (Grade 3b)
Explanation
The FIGO 2019 classification grades morbidly adherent placenta as: Grade 1 (accreta — adherent, no invasion), Grade 2 (increta — myometrial invasion), Grade 3a (percreta — up to uterine serosa), Grade 3b (percreta invading bladder), and Grade 3c (percreta invading other pelvic organs/parametrium). Invasion through the serosa into the bladder is Grade 3b. Invasion into parametrium or other organs (beyond the bladder) is Grade 3c.
Reference: Williams Obstetrics, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.