There are several forms of<unk>  and anorectal malformations. The new classification is in relation of the type of associated fistula. The classical Wingspread classification was in low and high anomalies: * A low lesion, in which the colon remains close to the skin. In this case, there may be a stenosis (narrowing) of the<unk> , or the<unk>  may be missing altogether, with the rectum ending in a blind pouch. * A high lesion, in which the colon is higher up in the pelvis and there is a fistula connecting the rectum and the bladder, urethra or the vagina. * A persistent cloaca (from the term cloaca, an analogous orifice in birds, reptiles and amphibians), in which the rectum, vagina and urinary tract are joined into a single channel.<unk>  is usually present along with other birth defects—spinal problems, heart problems, tracheoesophageal fistula, esophageal atresia, renal anomalies and limb anomalies are among the possibilities, collectively being called the VACTERL association. Associated anomalies<unk>  is associated with an increased incidence of some other specific anomalies as well, together being called the VACTERL association. Other entities associated with an<unk>  are trisomies 18 and 21, the cat-eye syndrome (partial trisomy or tetrasomy of a maternally derived chromosome 22), Baller–Gerold syndrome, Currarino syndrome, caudal regression syndrome, FG syndrome, Johanson–Blizzard syndrome, McKusick–Kaufman syndrome, Pallister–Hall syndrome, short rib–polydactyly syndrome type 1, Townes–Brocks syndrome, 13q deletion syndrome, urorectal septum malformation sequence and the OEIS complex (omphalocele, exstrophy of the cloaca,<unk> , spinal defects).
Imperforate anus
Enterocele
Galactocele
Rectocele
Urachal diverticulum
Punctal plug
Spigelian hernia
Hereditary coproporphyria