Large<unk> s are diagnosed by ultrasound or MRI, and confirmed by histologic examination of the placenta. Histologically,<unk>  consist of abundant vascular channels and may be cellular. Image:Chorangioma - low mag.Micrograph of a<unk>  (right of image) and normal placenta (left of image). H&E stain.
Chorangioma
Chorioangioma
Spider angioma
Lymphangioma
Lymphohemangioma
Tufted angioma
Cherry angioma
Hemangioma