Anus, Imperforate

Weinstein (1965) reported 3 families with multiple affected males in a pattern strongly suggesting X-linked recessive inheritance. In a later paper, Winkler and Weinstein (1970) described 2 families, each with 2 sisters with imperforate anus and/or ectopic anus (rectovaginal fistula). They then proposed autosomal recessive inheritance for some cases (see 207500). Bensen and Burton (1989) reported a family in which imperforate anus with or without hypospadias occurred in 4 males in 3 sibships of 2 generations, the males being connected through presumed carrier females. In addition, 1 male, the son of a sister of an affected male, had hypospadias only. Hearing loss was found in 3 of the 4 males with imperforate anus and in 2 of the presumptive carrier females.