Question:hard
Which of the following statements about partial mole is false?
Which of the following statements about partial mole is false?
Show Hint
Early ultrasound often misses a partial mole; histology confirms it.
Updated On: Jun 24, 2026
- Usually associated with triploidy
- Rarely causes persistent gestational trophoblastic neoplasia
- Usually presents as missed abortion
- Can be reliably diagnosed by USG in early gestation
Show Solution
The Correct Option is D
Solution and Explanation
This is a find the wrong statement question, so verify each claim against partial mole facts and the odd one out is the answer.
Genetics first. A partial mole is classically triploid, carrying 69 chromosomes because two sperm fertilise one egg or a diploid sperm fertilises it. So the triploidy statement is correct.
Behaviour next. Compared with a complete mole, a partial mole carries a much smaller chance of turning into persistent gestational trophoblastic neoplasia, only a few percent. So the rare progression statement is correct.
Presentation next. Because there is fetal tissue and only patchy villous swelling, a partial mole rarely looks like the dramatic grape cluster and instead usually turns up as a missed or incomplete miscarriage. So that statement is also correct.
That leaves the ultrasound claim. In reality the early sonographic signs of a partial mole are subtle and easily overlooked, so it cannot be reliably diagnosed on early scan, and the firm diagnosis usually comes from histopathology after evacuation. That makes the imaging statement the false one.
$Triploid + low\ GTN\ risk + missed\ abortion\ are\ true;\ reliable\ early\ USG\ is\ not$
\[\boxed{Can\ be\ reliably\ diagnosed\ by\ USG\ in\ early\ gestation}\]
Genetics first. A partial mole is classically triploid, carrying 69 chromosomes because two sperm fertilise one egg or a diploid sperm fertilises it. So the triploidy statement is correct.
Behaviour next. Compared with a complete mole, a partial mole carries a much smaller chance of turning into persistent gestational trophoblastic neoplasia, only a few percent. So the rare progression statement is correct.
Presentation next. Because there is fetal tissue and only patchy villous swelling, a partial mole rarely looks like the dramatic grape cluster and instead usually turns up as a missed or incomplete miscarriage. So that statement is also correct.
That leaves the ultrasound claim. In reality the early sonographic signs of a partial mole are subtle and easily overlooked, so it cannot be reliably diagnosed on early scan, and the firm diagnosis usually comes from histopathology after evacuation. That makes the imaging statement the false one.
$Triploid + low\ GTN\ risk + missed\ abortion\ are\ true;\ reliable\ early\ USG\ is\ not$
\[\boxed{Can\ be\ reliably\ diagnosed\ by\ USG\ in\ early\ gestation}\]
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