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Handbook of Genetic Counseling/Dysmorphic Features - Developmental Delay
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Dysmorphic Features - Developmental Delay
Contracting
Introduce myself and counselor
Explain role of counselor is supervisory
Discuss the reason for referral
Do you know why you are here today?
Elicit prior knowledge
Assess parental concerns
Any further plans for children?
I understand you had a previous child that was stillborn?
Set goals for the session/overview what will happen
Physical exam by Dr.
Address parental concerns
Discuss any further testing
Arrange for follow up
Intake and Family History Update
Pedigree
Interim History
Illnesses
Hospitalizations
Surgeries
Current medications
Review of systems
Diet/feeding
What he eats, how much, how often
Skin
Rashes, birthmarks, dry skin
CV
Heart murmur, special heart tests (EKG)
Endo
Hormone problems, diabetes, thyroid disease, weight gain or loss
GU
Kidney anomalies, renal ultrasound
MS
Muscle weakness, scoliosis, bone fractures
ENT
Sinusitis, ear infection, hearing loss
Psych
Temperament, sleeping patterns
GI
Diarrhea, constipation
Allergy to food, medicine, etc.
Eyes
Visual problems, cataracts
Neuro
Seizures, brain abnormality
Resp
Colds, infection, wheezing, pneumonia
Heme
Bleeding disorders
Recent tests and procedures
Developmental Assessment
Currently 1 year, 2 weeks old
Skills for a 1 year old
Pulls self to standing, may step with support
Picks things up with thumb and one finger
Stacks two blocks, gives toy on request
Gives affection
Follows simple directions accompanied by gestures
May say 2 or 3 words
Skills for a 9 month old
Sits alone, changes position without falling
Plays with 2 objects at the same time
Says mama & baba
Skills for 6 month old
Sits with minimal support, rolls from back to stomach
Transfers object from hand to hand and hand to mouth
Babbles, more than 2 sounds
Skills for 15 month old
May walk without support
Stacks 2 blocks
Vocalized up and down like conversation; may say 4 or 5 words
Some self-feeding
Any early intervention programs?
Psychosocial assessment
Physical exam
Macro/microcephaly?
Height and weight?
Differential Diagnosis
Input criteria using London Dysmorphology Database:
Hypertelorism; posteriorly rotated ears; epicanthic folds; developmental delay
Output:
Braegger: ischiadic hypoplasia; renal dysfunction; immunodeficiency
Autosomal recessive
Conductive hearing loss, intrauterine growth retardation, microcephaly, syndactyly
Cardio-Facio-Cutaneous (CFC) syndrome
Common features with Noonan syndrome
Pulmonary stenosis is common
Enlarged liver and spleen, mild to moderate mental retardation in 80%, macrocephaly, sparse, curly and/or slow-growing hair, lack of eyebrows and eyelashes, abnormal skin lesions varying from severe atopic dermatitis to hyperkeratosis/ichthyosis-like lesions
Hypotonia, strabismus, brain anomalies including hydrocephalus, cortical atrophy, hypoplasia of frontal lobes and/or brain stem atrophy
Farag: hypertelorism; hypospadias; tetralogy of Fallot
Autosomal recessive
Mental retardation, also other cardiac defects including PFO, PDA, and absent pulmonary valve
Fetal Alcohol Syndrome
Low birth-weight
Hypotonia, microcephaly, FTT, smooth philtrum with a thin upper lip
Cardiac lesions in 1/3 of cases: VSD is most common
Hurst: congenital heart disease; choanal stenosis; short stature
Autosomal recessive
ASD and VSD; microcephaly, small nose, long philtrum, thin upper lip
Morillo-Cucci: short stature, mental retardation; unusual face
Hypertelorism, ptosis, myopia, strabismus, antimongoloid palpebral fissures
Hyperextensible joints; bilateral 5th finger clinodactyly
Multiple circumferential skin folds (Michelin baby)
Autosomal dominant; heterogeneous condition.
Marked annular skin creases on the limbs with underlying nevus lipomatosus
Hemihypertorphy, CP can be seen, micrognathia, pectus excavatum, scoliosis, hypoplastic scrotum, and retractile testes.
Multiple pterygium syndrome
Autosomal dominant
Ptosis, antimongoloid eye slant, scoliosis, camptodactyly, vertebral anomalies
Small stature, cryptorchidism, normal intelligence
Noonan syndrome (Turner-like syndrome)
1/1000 and 1/2300 live births
Short stature, short neck with webbing, cardiac anomalies, characteristic chest deformity (pectus excavatum), widespaced nipples, characteristic facies, 35% mental retardation
Cryptorchidism, pulmonic stenosis, bleeding disorders
Polyhydramnios in 33% of cases and feeding difficulties in 75%
Noonan-like/multiple giant cell lesion syndrome
Cherubism and polyarticular pigmented villonodular synovitis
Opitz-BBB syndrome
X-linked and AD (indistinguishable clinically)
Hypertelorism, hypospadias, CL/CP, imperforate anus (although rare), hypotonia
Congenital heart defect, cryptorchidism, bifid scrotum, mental retardation
Hernias, micrognathia, broad flat nasal bridge
Pascual-Castroviejo: cerebro-facio-thoracic dysplasia
Mental retardation, narrow forehead, bushy eyebrows, triangular-shaped mouth with downturned corners, short neck with low posterior hairline, brachycephaly, maxillary hypoplasia, and multiple skeletal anomalies.
Pashayan: MR; truncal obesity, webbed neck, blepharophimosis
Simple philtrum, thin upper lip, flat, broad nasal bridge, short stubby nasal tip, hypertelorism, developmental delay
Glaucoma requiring enucleation.
Pterygium colli-mental retardation-digital anomalies
Pterygium colli, ptosis, upslanting palpebral fissures, hypertelorism, broad nasal base and bridge, epicanthus inversus, syndactyly of toes
Ritscher-Schinzel: Dandy-Walker malformation of the brain; atrioventricular septal defect
Hypertelorism, downslanting palpebral fissures, low-set ears, postnatal growth retardation, cardiac defects, DD
Rubinstein-Taybi syndrome
Microcephaly, antimongoloid eye slant, hypertelorism, long eyelashes, milt ptosis, prominent and/or beaked nose with or without nasal septum extending below alae nasi (100%), thumbs are broad, occasionally bifid, cardiac defects in 25%, broad great toes in 100%, ear infections are common
Sleep problems possibly due to sleep apnea, feeding difficulties are common
Summarize Major Points
Elicit Final Questions
Arrange for Follow up
Resources
The family Village
www.familyvillage.wisc.edu
References
London Dysmorphology Database
Smith's recognizable patterns of human malformation (1997) 5th Edition.
Early Intervention Services: "A Guide to Your Child's Development" (1999)
Notes
The information in this outline was last updated in 2002.