tailgut

post·a·nal gut

an extension of the hindgut caudal to the point at which the anal opening is formed.
Synonym(s): postcloacal gut, tailgut

tailgut

(tāl′gŭt)
A transient diverticulum of the endodermal cloaca of the embryo that extends to the anal opening.
Mentioned in ?
References in periodicals archive ?
Coccygeal polypoid eccrine nevi can also be distinguished from other sacrococcygeal lesions in the pediatric age group, such as teratoma, sacrococcygeal eversion, and tailgut cysts.
Finally, tailgut cysts are congenital malformations in the presacral space and are a malformed remnant of the hindgut.
Among them, there are the mucus-secreting cysts, also called tailgut cysts or cystic hamartomas, that are often lined by transitional, columnar mucinous epithelium and characterized by a multicystic aspect and high frequency in middle-aged women.
(1) These include tailgut cysts, which are well-defined masses, typically multicystic and nonencapsulated, and may be unilocular.
We present the multimodality imaging findings of a retrorectal/presacral tailgut cyst with concomitant hydatid disease of the perineum.
Laparotomy, done with the above possibilities and a tailgut cyst or rectal duplication cyst in mind, revealed an immobile retroperitoneal, tense, cystic swelling occupying the entire pelvic cavity.
Tailgut cysts can be diagnosed at all ages but are seen more commonly in middle-age females.
There are two types of enteric cysts, tailgut cysts (so-called retro rectal cyst-hamartomas or mucin-secreting cysts) and cystic rectal duplication.
The retrorectal cystic hamartoma, also referred to as a tailgut cyst, is believed to originate from the vestigial elements of the embryonic hindgut.
Hemorrhoids, perianal abscess, tailgut cysts, anal canal cysts, retrorectal/presacral cysts, teratomas and dermoid cysts, anal skin cancer should be considered in the differential diagnosis of p erianal cysts.
Differential diagnoses are numerous, including cystic lymphangioma, mucinous cystadenoma, cystic teratoma, cystic mesothelioma, mullerian cyst, epidermoid cyst, tailgut cyst, bronchogenic cyst, cystic changes in a solid neoplasm, pseudomyxoma retroperitoneal, perianal mucinous carcinoma, pancreatic pseudocyst, lymphocele, urinoma, hematoma, cystadenoma of mesonephric origin, and cavernous hemangioma Dinesh [8].
Retrorectal cyst hamartoma (RCH), also commonly known as tailgut cyst, is a rare benign cystic lesion located in the retrorectal space and is believed to derive from persistence of embryologic remnants of the post anal gut (tailgut), which appears at the 3.5-mm stage of the human embryo.