Global developmental delay, and Short palm

• Intellectual disability
• Seizures
• Global developmental delay
• Cryptorchidism
• Ventriculomegaly

SOURCES: OMIM MENDELIAN

An autosomal recessive form of Kenny-Caffey syndrome due to mutation(s) in the TBCE gene, encoding tubulin-specific chaperone E. This condition is characterized by hypoparathyroidism with hypocalcemia, marked growth retardation, craniofacial anomalies, absent diploic space in the skull, cortical thickening of long bones with medullary stenosis, and small hands and feet.

AUTOSOMAL RECESSIVE KENNY-CAFFEY SYNDROME Is also known as kcs|kenny-caffey syndrome, autosomal recessive

• Seizures
• Global developmental delay
• Microcephaly
• Growth delay
• Hypertelorism

SOURCES: ORPHANET MESH OMIM MENDELIAN

Cerebellar ataxia, mental retardation, and dysequilibrium syndrome (CAMRQ) is a genetically heterogeneous disorder characterized by congenital cerebellar ataxia and mental retardation (summary by Gulsuner et al., 2011).For a discussion of genetic heterogeneity of CAMRQ, see CAMRQ1 (OMIM ).

CEREBELLAR ATAXIA, MENTAL RETARDATION, AND DYSEQUILIBRIUM SYNDROME 2; CAMRQ2 Is also known as cerebellar ataxia and mental retardation with or without quadrupedal locomotion 2

• Intellectual disability
• Global developmental delay
• Short stature
• Hearing impairment
• Ataxia

SOURCES: MESH OMIM MENDELIAN

Deletion 6q16 syndrome is a Prader-Willi like syndrome characterized by obesity, hyperphagia, hypotonia, small hands and feet, eye/vision anomalies, and global developmental delay.

6Q16 DELETION SYNDROME Is also known as del(6)(q16)|prader-willi-like syndrome due to deletion 6q16|monosomy 6q16

• Global developmental delay
• Short stature
• Microcephaly
• Hypertelorism
• Nystagmus

SOURCES: ORPHANET MENDELIAN

Metaphyseal chondromatosis with D-2-hydroxyglutaric aciduria is an extremely rare genetic disorder characterized by the unique association of enchondromatosis with D-2 hydroxyglutaric aciduria (see these terms). Clinical features include enchondromatosis (with short stature, severe metaphyseal dysplasia and mild vertebral involvement), elevated levels of urinary 2-hydroxyglutaric acid and mild developmental delay.

METAPHYSEAL CHONDROMATOSIS WITH D-2-HYDROXYGLUTARIC ACIDURIA Is also known as spondyloenchondromatosis with d-2-hydroxyglutaric aciduria|metaphyseal enchondrodysplasia with 2-hydroxyglutaric aciduria|metaphyseal chondromatosis with d-2-hydroxyglutaric aciduria

• Global developmental delay
• Short stature
• Scoliosis
• Strabismus
• Depressed nasal bridge

SOURCES: ORPHANET OMIM MENDELIAN

Early infantile epileptic encephalopathy-2 is an X-linked dominant severe neurologic disorder characterized by onset of seizures in the first months of life and severe global developmental delay resulting in mental retardation and poor motor control. Other features include lack of speech development, subtle dysmorphic facial features, sleep disturbances, gastrointestinal problems, and stereotypic hand movements. There is some phenotypic overlap with Rett syndrome (OMIM ), but EIEE2 is considered to be a distinct entity (summary by Fehr et al., 2013).For a general phenotypic description and a discussion of genetic heterogeneity of EIEE, see EIEE1 (OMIM ).

CDKL5-RELATED EPILEPTIC ENCEPHALOPATHY Is also known as issx2|cdkl5 deficiency disorder|infantile spasm syndrome, x-linked 2

• Intellectual disability
• Seizures
• Global developmental delay
• Generalized hypotonia
• Microcephaly

SOURCES: ORPHANET OMIM MESH MENDELIAN

Congenital symmetric circumferential skin creases is characterized by the folding of excess skin, which leads to ringed creases, primarily of the limbs. Affected individuals also exhibit intellectual disability, cleft palate, and dysmorphic features (summary by Isrie et al., 2015).For a discussion of genetic heterogeneity of congenital symmetric circumferential skin creases, see CSCSC1 (OMIM ).

• Intellectual disability
• Seizures
• Global developmental delay
• Short stature
• Generalized hypotonia

SOURCES: OMIM MENDELIAN

• Seizures
• Global developmental delay
• Generalized hypotonia
• Nystagmus
• Strabismus

SOURCES: OMIM MENDELIAN

Pierpont syndrome is a rare subcutaneous tissue disorder characterized by axial hypotonia after birth, prolonged feeding difficulties, moderate to severe global developmental delay, seizures (in particular absence seizures), fetal digital pads, distinctive plantar fat pads anteromedial to the heels, deep palmar and plantar grooves. Additionally, distinct craniofacial dysmorphic features, notably a broad face with high forehead, high anterior hairline, narrow palpebral fissures that take on a crescent moon shape when smiling, broad nasal bridge and tip with anteverted nostrils, mild midfacial hypoplasia, long, smooth philtrum, thin upper lip vermillion, small, widely spaced teeth and flat occiput/microcephaly/brachycephaly, are also chararteristic. Over time, fat pads may become less prominent and disappear.

PIERPONT SYNDROME Is also known as plantar lipomatosis, unusual facies, and developmental delay|plantar lipomatosis-facial dysmorphism-developmental delay syndrome|plantar lipomatosis-unusual facies-developmental delay syndrome

• Seizures
• Global developmental delay
• Short stature
• Generalized hypotonia
• Hearing impairment

SOURCES: ORPHANET OMIM MESH MENDELIAN

Spondyloepimetaphyseal dysplasia-short limb-abnormal calcification syndrome is a rare, genetic primary bone dysplasia disorder characterized by disproportionate short stature with shortening of upper and lower limbs, short and broad fingers with short hands, narrowed chest with rib abnormalities and pectus excavatum, abnormal chondral calcifications (incl. larynx, trachea and costal cartilages) and facial dysmorphism (frontal bossing, hypertelorism, prominent eyes, short flat nose, wide nostrils, high-arched palate, long philtrum). Platyspondyly (esp. of cervical spine) and abnormal epiphyses and metaphyses are observed on radiography. Atlantoaxial instability causing spinal compression and recurrent respiratory disease are potential complications that may result lethal.

SPONDYLOEPIMETAPHYSEAL DYSPLASIA-SHORT LIMB-ABNORMAL CALCIFICATION SYNDROME Is also known as smed, short limb-hand type|smed, type ii|smed-sl|smed, short limb-abnormal calcification type|smed-sl/ac|spondylometaepiphyseal dysplasia, short limb-abnormal calcification type

• Global developmental delay
• Short stature
• Generalized hypotonia
• Scoliosis
• Hypertelorism

SOURCES: OMIM MESH ORPHANET MENDELIAN