Perinatal deaths and lymphatic system involvement: a diagnostic flow-chart applying immunohistochemical methods.

A diagnostic flow chart is presented foruse in case of perinatal death or still birthwith non-immune hydrops fetalis, visceraleffusions, or increased nuchal translucency.Immunohistochemical staining with CD-31,CD-34, D2-40, and smooth muscle actin isrecommended.