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OBG · Gestational trophoblastic disease: choriocarcinoma
Sample itemChoriocarcinoma most commonly metastasises first to which organ?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Lungs
Choriocarcinoma is haematogenous, with the lungs being the commonest site (cannonball shadows), followed by vagina, brain and liver. It follows a mole in about 50 per cent of cases and responds extremely well to chemotherapy.
Option by option
A. Bone
Bone is an uncommon site.
B. Liver
The liver is involved in advanced disease.
C. Brain
Brain metastases occur later and mark high-risk disease.
D. Lungs (correct)
Correct. The lung is the commonest metastatic site.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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