Prenatally diagnosable differences in the cellular immunity of fetuses with Down's and Edwards' syndrome.

Introduction: Lymphocyte subpopulations are identified by the uniform CD classification (Cluster of Differentiation) and can be accurately differentiated with monoclonal antibodies using the method of flow cytometry. With the aid of cordocentesis it is possible to perform studies on the status and development of cellular immunity as early as in the second trimester of pregnancy.

Objective: To compare lymphocyte subpopulations present in fetuses with chromosomal abnormalities (Down's syndrome (DS), Edwards' syndrome (ES)) and fetuses with normal karyotype.

Prenatal diagnosis of occipital dermal sinus associated with hemangioma using ultrasound and MRI. Case report.

Objective: We report a case of prenatal diagnosis and postpartum management of a subcutaneous tumor without intracranial communication.

Methods: An occipital tumor without intracranial communication was found on ultrasound scan in the 21st week of pregnancy. Using MRI, the diagnosis was confirmed.