Monarch Disease Ontology term MONDO_0100213 (IFAP syndrome 1, with or without BRESHECK syndrome) is an X-linked multiple congenital anomaly disorder with variable severity. The classic triad, which defines IFAP, is ichthyosis follicularis, atrichia, and photophobia. Some patients have additional features, including mental retardation, brain anomalies, Hirschsprung disease, corneal opacifications, kidney dysplasia, cryptorchidism, cleft palate, and skeletal malformations, particularly of the vertebrae, which constitutes BRESHECK syndrome. Also known as: IFAP syndrome with or without BRESHECK syndrome, IFAP syndrome with or without BRESHECK syndrome, X-linked recessive, IFAP/BRESHECK syndrome, ichthyosis follicularis, atrichia, and photophobia with or without brain anomalies, retardation, ectodermal dysplasia, skeletal malformations, Hirschsprung disease, Ear/eye anomalies, cleft palate/cryptorchidism, and kidney dysplasia/hypoplasia.