Introduction
Tailgut cysts (TGCs), a type of epidermoid cyst developing in the
retro-rectal region, are rare conditions that are often asymptomatic and
require further evaluation for malignant transformation if they become
symptomatic or even incidentally discovered. Symptoms can range from
asymptomatic to local effects on adjacent organs or infectious
processes.
Tailgut cysts may have a malignant transformation and present with
different pathologies that can show different behavior and outcome.
Malignant transformations are often adenocarcinomas and neuroendocrine
forms. Squamous Cell Carcinoma, like what we will report in our case, is
very rare and has been reported in only four patients so far.