[Presacrococcygeal congenital cyst in the adult].

Two cases of congenital cyst of the presacral space in the adult are presented. The unusualness of the lesion is stressed, and reference is made to the usefulness of a classification covering all retrorectal neoformations, including congenital forms. Attention is given to the manner of diagnosis.

[Actinic lesions of the ileum].

After an examination of the literature regarding the causes of lesions from rays, their most frequent sites, the diagnostic difficulties and the various types of treatment, the paper draws attention to the increase in such lesions in relation to the use of megavoltages, and the advisability of exploratory laparotomy in previously irradiated subjects even in cases apparently labelled as neoplastic relapses.