A 34-year-old G3P2 with two previous cesarean sections is diagnosed with anterior placenta previa at 28 weeks. MRI shows the placenta extending through the myometrium into the bladder wall. What is the correct classification of this placenta accreta spectrum disorder?
- A Placenta accreta
- B Placenta percreta ✓
- C Placenta increta
- D Placenta previa without invasion
Correct answer: B. Placenta percreta
Explanation
Placenta percreta is defined by villous invasion through the full thickness of the myometrium into the serosa or adjacent organs such as the bladder. Accreta involves attachment to the myometrium; increta invades into but not through the myometrium. Extension into the bladder wall is the hallmark of percreta.
Reference: Robbins and Cotran Pathologic Basis of Disease, 10th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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