Morbidly adherent placenta with villi invading into but NOT through the myometrium is classified as:

• A Placenta accreta
• B Placenta percreta
• C Placenta circumvallata
• D Placenta increta ✓

Explanation

Placenta accreta spectrum is classified by depth: placenta accreta = villi attach directly to myometrium without intervening decidua basalis; placenta increta = villi invade INTO (but not through) the myometrium; placenta percreta = villi penetrate THROUGH the full thickness of myometrium reaching the uterine serosa or beyond. Placenta circumvallata is a placental shape abnormality unrelated to invasion depth.

Reference: Williams Obstetrics, 26th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.