MCQ Radiology Answer 17

The Correct Answer is 4

Explanation:

16% of the complete and 0.5% of the partial moles can transform into malignant forms, i.e., invasive mole, choriocarcinoma and placental site trophoblastic tumour (PSTT). GTN has excellent prognosis and are almost always curable with methotrxate or actinomycin-D. USG and MRI show 'cluster of grape' or 'sand storm' appearance. GTN shows low impedence, high velocities (low PI) in the arteries. The uterine artery PI is known to predict response to chemotherapy. With the exception of vaginal disease, it is rare to have other metastatic disease in the absence of lung disease. Liver metastasis is a marker of poor outcome. Up to 15% of GTNs develop vascular malformations and UAE has been used successfully to treat them. Hyperthyroidism is a rare complication of GTN.

Reference: Allen SD et al. Radiology of gestational trophoblastic neoplasia. Clin Rad 2006:61:301-313.

Category: Radiology MCQs