MedGen

Ritscher-Schinzel syndrome (RSS) is a clinically recognizable condition that includes the cardinal findings of craniofacial features, cerebellar defects, and cardiovascular malformations resulting in the alternate diagnostic name of 3C syndrome. Dysmorphic facial features may include brachycephaly, hypotonic face with protruding tongue, flat appearance of the face on profile view, short midface, widely spaced eyes, downslanted palpebral fissures, low-set ears with overfolding of the upper helix, smooth or short philtrum, and high or cleft palate. Affected individuals also typically have a characteristic metacarpal phalangeal profile showing a consistent wavy pattern on hand radiographs. RSS is associated with variable degrees of developmental delay and intellectual disability. Eye anomalies and hypercholesterolemia may be variably present. [from GeneReviews]

An abnormally wavy surface or edge of the ribs. [from HPO]

A visual anomaly in which images appear distorted. A grid of straight lines appears wavy and parts of the grid may appear blank. [from HPO]

Ritscher-Schinzel syndrome (RSS) is a clinically recognizable condition that includes the cardinal findings of craniofacial features, cerebellar defects, and cardiovascular malformations resulting in the alternate diagnostic name of 3C syndrome. Dysmorphic facial features may include brachycephaly, hypotonic face with protruding tongue, flat appearance of the face on profile view, short midface, widely spaced eyes, downslanted palpebral fissures, low-set ears with overfolding of the upper helix, smooth or short philtrum, and high or cleft palate. Affected individuals also typically have a characteristic metacarpal phalangeal profile showing a consistent wavy pattern on hand radiographs. RSS is associated with variable degrees of developmental delay and intellectual disability. Eye anomalies and hypercholesterolemia may be variably present. [from GeneReviews]

A form of gray matter heterotopia were the mislocalized gray matter is typically located periventricularly, also sometimes called subependymal heterotopia. Periventricular means beside the ventricles. This is by far the most common location for heterotopia. Subependymal heterotopia present in a wide array of variations. There can be a small single node or a large number of nodes, can exist on either or both sides of the brain at any point along the higher ventricle margins, can be small or large, single or multiple, and can form a small node or a large wavy or curved mass. [from HPO]

The common blue nevus of Jadassohn-Tieche most frequently presents as a solitary blue 1- to 10-mm dome-shaped papule on the dorsal hand or foot. It is characterized by greatly elongated wavy groups of spindled dermal melanocytes that are oriented parallel to the epidermis. Cellular blue nevi resemble common blue nevi clinically but are usually larger, ranging from 1 to 3 cm in diameter, and occur primarily on the buttocks or sacrum as a solitary blue nodule (summary by Knoell et al., 1998). [from OMIM]

An abnormally wavy surface or edge of the clavicles. [from HPO]

A developmental disorder characterized by the progressive loss of primordial germ cells in the developing ovaries of an embryo, leading to hypoplastic ovaries composed of wavy connective tissue with occasional clumps of granulosa cells, and frequently mesonephric or hilar cells. [from HPO]

A rare acquired dermis elastic tissue disorder characterised by asymptomatic palpable hypertrophic or atrophic, yellowish or red, indurated, horizontal, striae-like linear plaques distributed symmetrically across the mid and lower back. No systemic involvement has been described. Skin biopsy reveals a focal increase in abnormal elastic tissue with abundant wavy, fragmented and aggregated basophilic elastic fibres in the reticular dermis. [from SNOMEDCT_US]

Individuals with 46,XY complete gonadal dysgenesis are phenotypically female; however, they do not develop secondary sexual characteristics at puberty and do not menstruate. They have bilateral 'streak gonads,' which typically consist of fibrous tissue and variable amounts of wavy ovarian stroma. A uterus and fallopian tube are present and external genitalia are female (reviewed by Berkovitz et al., 1991). Genetic Heterogeneity of 46,XY Sex Reversal Male sexual determination is initiated by Y-chromosomal SRY, which activates a cascade of genes that lead the embryonic gonad to develop into a testis. Fetal testicular Sertoli cells then produce mullerian inhibitory substance (600957), which is responsible for the involution of the mullerian ducts, which would otherwise develop into the uterus, fallopian tubes, and cervix. Fetal testicular Leydig cells produce testosterone from cholesterol by the sequential action of a series of enzymes. Subsequent differentiation of male external genitalia also requires the action of dihydrotestosterone, produced from testicular testosterone. Perturbations in the enzymes in this classic pathway or in an alternative pathway of testicular androgen biosynthesis can result in genetic males with disordered sexual development and incompletely developed ('ambiguous') external genitalia (summary by Fluck et al., 2011). Disorders of male development for which a genetic cause has been found include 46,XY sex reversal-2 (SRXY2; 300018), which is caused by duplication of the NR0B1 gene (300473) on chromosome Xp21.3-p21.2; SRXY3 (612965), caused by mutation in the NR5A1 gene (184757) on chromosome 9q33; SRXY4 (154230), caused by deletion on chromosome 9p24.3; SRXY5 (613080), caused by mutation in the CBX2 gene (602770) on chromosome 17q25; SRXY6 (613762), caused by mutation in the MAP3K1 gene (600982) on chromosome 5q11.2; SRXY7 (233420), caused by mutation in the DHH gene (605423) on chromosome 12q13; SRXY8 (614279), caused by mutation in the AKR1C2 gene (600450) on chromosome 10p15, with a possible contribution from the closely linked AKR1C4 gene (600451); SRXY9 (616067), caused by mutation in the ZFPM2 gene (603693) on chromosome 8q23; and SRXY10 (616425), caused by deletion of the XYSR regulatory region -640 kb upstream of the SOX9 gene (608160) on chromosome 17q24. Wilhelm and Koopman (2006) reviewed male sexual development and the genetics of disorders of human sexual development, noting that most cases of XY sex reversal, SRY-negative XX sex reversal, and true hermaphroditism remained unexplained at the molecular level. [from OMIM]