“…Other causes include lung sequestration [11], diaphragmatic hernia [17], adenoviral infec tion [20] and congenital goitre [21]. They may also be seen as part of fetal hydrops [22], Lymphocytic effusions may be seen in a variety of conditions [18,21], Previous reports where the prominent fe tal abnormality was FHT present either alone or associated with ascites and/or oe dema are summarized in table I. Additional major intrathoracic pathology was present in one quarter of the cases.…”