Introduction: To investigate placental hydropic vesicles stromal transformation is important in determining pathophysiologic tissue alterations. Objectives: To describe hydatidiform mole and placental mesenchymal dysplasia tridimensional characteristics of villi stroma hydropic transformation. Design: Histopathologic study. Biologic material: Curettage specimens obtained from patients with molar pregnancy and placental mesenchymal dysplasia. Interventions: Conventional scanning electron microscopy stains were applied to specimens obtained by curettage from patients with molar pregnancy and placental mesenchymal dysplasia. Results were compared with normal villi. Both specimens were obtained during the second trimester of pregnancy. Main outcome measures: Placental hydropic villi stromal changes. Results: A complex net of cells and bundles of collagen fibres associated to extracellular ma...

Introduction: To investigate placental hydropic vesicles stromal transformation is important in determining pathophysiologic tissue alterations. Objectives: To describe hydatidiform mole and placental mesenchymal dysplasia tridimensional characteristics of villi stroma hydropic transformation. Design: Histopathologic study. Biologic material: Curettage specimens obtained from patients with molar pregnancy and placental mesenchymal dysplasia. Interventions: Conventional scanning electron microscopy stains were applied to specimens obtained by curettage from patients with molar pregnancy and placental mesenchymal dysplasia. Results were compared with normal villi. Both specimens were obtained during the second trimester of pregnancy. Main outcome measures: Placental hydropic villi stromal changes. Results: A complex net of cells and bundles of collagen fibres associated to extracellular ma...