Intellectual disability, and Clinodactyly of the 5th finger

16P13.2 MICRODELETION SYNDROME Is also known as del(16)(p13.2)|monosomy 16p13.2

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

SOURCES: ORPHANET OMIM MENDELIAN

Seckel syndrome is an autosomal recessive disorder characterized by proportionate short stature, severe microcephaly, mental retardation, and a typical 'bird-head' facial appearance (summary by Kalay et al., 2011).For a general phenotypic description and a discussion of genetic heterogeneity of Seckel syndrome, see {210600}.

• Intellectual disability
• Short stature
• Microcephaly
• Micrognathia
• Strabismus

SOURCES: OMIM MENDELIAN

Seckel syndrome is a rare autosomal recessive disorder characterized by growth retardation, microcephaly with mental retardation, and a characteristic facial appearance (Borglum et al., 2001).For a general phenotypic description and a discussion of genetic heterogeneity of Seckel syndrome, see SCKL1 (OMIM ).

SECKEL SYNDROME 2; SCKL2 Is also known as microcephalic primordial dwarfism 2|seckel-type dwarfism 2

• Intellectual disability
• Global developmental delay
• Short stature
• Microcephaly
• Growth delay

SOURCES: OMIM MENDELIAN

Brachydactyly type A1 (BDA1) is a congenital malformation characterized by apparent shortness (or absence) of the middle phalanges of all digits, and occasional fusion with the terminal phalanges.

BRACHYDACTYLY TYPE A1 Is also known as farabee-type brachydactyly|brachydactyly, farabee type

• Intellectual disability
• Short stature
• Scoliosis
• Brachydactyly
• Talipes equinovarus

SOURCES: OMIM ORPHANET MENDELIAN

MISSLA is an autosomal recessive disorder characterized by intrauterine growth retardation, microcephaly, variable short stature, and limb abnormalities mainly affecting the upper limb and radial ray. Affected individuals typically have mild intellectual disability, but may have normal development (summary by Reynolds et al., 2017).

• Intellectual disability
• Global developmental delay
• Short stature
• Microcephaly
• Growth delay

SOURCES: OMIM MENDELIAN

Macrocephaly-developmental delay syndrome is a rare, intellectual disability syndrome characterized by macrocephaly, mild dysmorphic features (frontal bossing, long face, hooded eye lids with small, downslanting palpebral fissures, broad nasal bridge, and prominent chin), global neurodevelopmental delay, behavioral abnormalities (e.g. anxiety, stereotyped movements) and absence or generalized tonic-clonic seizures. Additional features reported in some patients include craniosynostosis, fifth finger clinodactyly, recurrent pneumonia, and hepatosplenomegaly.

• Intellectual disability
• Seizures
• Global developmental delay
• Generalized hypotonia
• High palate

SOURCES: ORPHANET OMIM MENDELIAN

MASA syndrome (Mental retardation, Aphasia, Spastic paraplegia, Adducted thumbs) is a historical term used to describe a phenotype now considered to be part of the X-linked L1 clinical spectrum (L1 syndrome, see this term). MASA is characterized by mild to moderate intellectual deficit, delayed development of speech, hypotonia progressing to spasticity or spastic paraplegia, adducted thumbs, and mild to moderate distension of the cerebral ventricles.

MASA SYNDROME Is also known as spastic paraplegia 1, x-linked|thumb, congenital clasped, with mental retardation|gareis-mason syndrome|intellectual disability-aphasia-shuffling gait-adducted thumbs syndrome|clasped thumb and mental retardation|spg1|mental retardation, aphasia, shufflin

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

SOURCES: OMIM ORPHANET MENDELIAN

Intellectual disability-obesity-brain malformations-facial dysmorphism syndrome is a rare, syndromic intellectual disability primarily characterized by moderate to severe intellectual disability, true-to-relative microcephaly and brain abnormalities including a thin corpus callosum, cerebellar hypoplasia, cerebral white matter hypoplasia and multi-focal hyperintensity of cerebral white matter on MRI. Obesity and distinctive craniofacial dysmorphism (including brachycephaly, round face, straight eyebrows, synophrys, hypertelorism, epicanthus, wide and depressed nasal bridge, protruding ears with uplifted lobe, downslanting corners of the mouth) are additional features.

INTELLECTUAL DISABILITY-OBESITY-BRAIN MALFORMATIONS-FACIAL DYSMORPHISM SYNDROME Is also known as autosomal recessive intellectual disability due to trappc9 deficiency

• Seizures
• Global developmental delay
• Microcephaly
• Hypertelorism
• Abnormal facial shape

SOURCES: ORPHANET MENDELIAN

Seckel syndrome is a type of microcephalic primordial dwarfism that is characterized by a proportionate dwarfism of prenatal onset, a severe microcephaly, a typical dysmorphic face (bird-like), and mild to severe intellectual disability.

• Intellectual disability
• Short stature
• Microcephaly
• Scoliosis
• Micrognathia

SOURCES: ORPHANET MENDELIAN

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

SOURCES: OMIM MENDELIAN