“…This lesion is not an infarct in the true pathological sense of the word, although it has been classed as such by numerous authors (Williams, 1900;Siddall and Hartmann, 1920;Haffner, 1921;Montgomery, 1931;Hunt et al, 1940;Falkiner, 1942;Steigrad, 1952;Thomsen, 1954;Bartholomew et al, 1957). The term "ischaemic necrosis of villi due to fibrin deposition" has been used by some workers (Gold, 1946;Nesbitt, 1958;Wilkin, 1961;Marais, 1962) but this is an unsuitable name because true villous necrosis does not occur in this lesion; it is true that the syncytial layer undergoes necrosis but the villous stroma shows fibrosis.…”