Retro-rectal adenocarcinoma 7 years following excision of a tailgut-cyst, case report and proposals to prevent recurrence.

Abstract

Summary: Retro-rectal cystic hamartoma or tailgut cyst is a benign tumor of congenital origin, which has a recurring potential and an enclosed malignancy. - Case of a 59-year-old patient with a potentially recurrent tumor of 14cm that exceeded the limits of the retro rectal region and progressed downwards to the right anal region and retro coccygeal, its excision, « supposed » complete and confirmed by CT scan post operatively, was performed via 3 ways. Relapse had occurred as “adenocarcinoma” 7 years later, probably from some tumor cells, and this recurrence confirmed the insufficiency of excising the tumor alone. In our study the databases of Pub Med, Google Scholar, Scopus, were consulted, the research was: Tailgut Cyst, Retrorectal tumors, and malignancy; we found 399 cases of which some were solitary and others published through series. The tumor would therefore not be as rare as we previously assumed. - We present an analysis trying to unveil recurrences and their malignant transformations in adults. We also propose preventive measures and possible treatments during and after surgery.