Hydatidiform mole in a scar on the uterus: A case report

Figure 1 Magnetic resonance imaging demonstrated an irregular mass in the proximal isthmus. A: The lesion was hypointense to hyperintense on T1-weighted image; B: The lesion was hypointense to hyperintense on T2-weighted image; C: Heterogeneous hyperintensity was seen on diffusion-weighted image; D: The lesion was hypointense on apparent diffusion coefficient maps; E: Gadolinium-enhanced magnetic resonance imaging indicated that the edge of the mass was enhanced in the arterial phase; F and G: The edge of the mass was persistently enhanced in the venous and delayed phases; H: Sagittal T2-weighted image showing localized widening of the upper cervical canal.

Figure 2 Magnetic resonance imaging of the lesion after treatment. The mass was obviously diminished after treatment (compared with Figure 1). A: The lesion was isointense to hyperintense on T1-weighted image; B: The lesion was isointense on T2-weighted image; C: Heterogeneous hyperintensity was seen on diffusion-weighted image; D: The lesion was obviously hypointense on apparent diffusion coefficient maps; E: Gadolinium-enhanced MRI indicated that the lesion was enhanced in the arterial phase; F and G: The edge of the lesion was still persistently enhanced in the venous and delayed phases; H: Sagittal T2-weighted image displaying localized widening of the upper cervical canal.

Figure 3 Pathological images. A: Hematoxylin-eosin staining revealed mild or moderate hyperplasia of placental villus trophoblasts (magnification, ×100); B: Hematoxylin-eosin staining showed interstitial edema and central pool formation (magnification, ×100).