Extruded Filshie clip presenting as an ischiorectal abscess.

This report adds to the small, but significant, literature base describing late complications following laparoscopic sterilisation. In women with recalcitrant peri-anal sepsis (who have previously undergone a sterilisation procedure) the possibility of tubal clip migration should be borne in mind. This is also an important learning point from a medicolegal point of view as patients presenting with the sequelae of clip migration will need to be counselled, and possibly investigated, with respect to the efficacy of their sterilisation procedure.

Choriocarcinoma of the colon: report of a case and review of the literature.

Primary choriocarcinoma of the colon is a very rare tumor, with only six reported cases in the world literature, all but one of which was associated with an adjacent adenocarcinoma. This has led to the suggestion that colonic choriocarcinomas may arise from the more typical adenocarcinoma a process of further dedifferentiation. This article reviews the above cases and adds a further case from a 73-year-old male in whom no associated adenocarcinoma could be found despite careful postmortem examination. This finding gives support to the hypothesis that, rather than arising as a result of further dedifferentiation of an existing tumor, primary choriocarcinomas may also develop in the large intestine.