A 32-year-old woman with previous two cesarean sections presents at 28 weeks with anterior placenta previa. MRI shows placental tissue extending through the myometrium into the bladder mucosa. This is classified as which type of 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 as invasion of chorionic villi through the full thickness of the myometrium and into the serosa or adjacent organs such as the bladder. Accreta involves attachment to the myometrium without invasion. Increta involves invasion into but not through the myometrium. Extension into the bladder mucosa is the hallmark of percreta and carries the highest risk of massive hemorrhage.
Reference: Robbins and Cotran Pathologic Basis of Disease, 10th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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