Magnetic resonance imaging and hydatidiform mole.

Five women with complete and partial hydatidiform mole were examined by magnetic resonance imaging (MRI). Spin-echo pulse sequences (T2 weighted) were found to provide excellent resolution, while inversion-recovery pulse sequences (T1 weighted) gave better pathological detail. The myometrium was clearly seen on each patient and no invasion by the tumour detected. This corresponded to the histological findings. The potential uses of magnetic resonance in the diagnosis of primary and recurrent trophoblastic disease and its role in management are discussed.