Syndromes Flashcards
T21 cardiac defects
AVSD*, VSD, pulmonary hypertension
ear problems T21
Small low set ears
congenital hearing loss
AOM
Stenotic ear canals
GI complications T21
Duodenal atresia, anorectal stenosis, GERD, Celiac, Hirschprungs
endo complications T21
Congenital hypothyroidism
Short stature
Diabetes
Heme complications T21
Transient myeloproliferative disorder leukemia polycythemia iron deficiency immunodeficiency
Genetics of Edwards Syndrome
T18
Head and neck morphology T18
prominent occiput narrow bifrontal diameter low set. malformed ears short palpebral fissures small oral opening narrow palatal arch micrognathia
Cardiac anomalies T18
VSD, PDA
GU complications T18
Cryptorchidism
MSK complications T18
Clenched hand
Overlapping fingers
Nail hypoplasia
Rocker-bottom feet
Genetics of Patau Syndrome
T13
Cardinal features of Patau Syndrome
holoprosencephaly
eye, nose, lip defects
Head abnormalities Patau
microcephaly wide sagittal suture microphthalmia coloboma retinal dysplasia cleft lip/palate deafness
Heart anomalies Patau
VSD
PDA
ASD
Umbilical anomally Patau
single umbilical artery
GU anomalies patau
cryptorchidism
bicornate uterus
Derm & Skin manifestations Patau
polydactyly
capillary hemangiomata
loose neck skin
Marfans - inheritance pattern
autosomal dominant or sporadic
major features of Marfans
Arachnodactyly with hyperextensibility, overgrowth of long bones, ectopia lentis, aortic dilatation
Marfans: upper:lower segment & span-height ratio
upper:lower < 0.85
Span-height > 1.05
CVS complications Marfans
*Dilation of the ascending aorta
MVP
Risk of dilated cardiomyopathy
Investigations/Screening needed for Marfans
Echo Ophtho Genetics Cardio - ? beta blocker Ortho
Activity restriction Marfans
NO strenuous PA, no competitive sports, no weight lifting
Inheritance Osteogenesis Imperfecta
Autosomal Dominant
Xray findings - Osteogenesis Imperfecta
Codfish vertebrae (compressions) Wormian bones (small irregular bones in skull)
CNS complication OI
Basilar invagination - headaches, weakness, ataxia
Describe dentinogenesis imperfecta
hypoplastic, transparent, amberbrown coloured teeth. late erupting - usually primary teeth
CVS complications - OI
Aortic valve disease, mitral prolapse
GI risks OI
Umbilical & inguinal hernias
GU risk OI
hypercalciuria
Genetics Turner Syndrome
45X
Classic findings Turners
Short broad chest wide spaced nipples congenital lymphedema bicuspid aortic valve
CVS complications Turners
bicuspid AV Coarct MVP Aortic dissection long QT HTN
H&N anomalies Turners
prominent auricles narrow maxilla small mandible high palate low posterior hairline short/webbed neck hypertelorism
GU complications Turners
ovarian dysgenesis - primary amenorrhea
horseshoe kidney
MSK anomalies Turners
cubitus valgus, short 4th metacarpal/metatarsal
Endo anomalies Turners
obesity insulin resistance LE elevation thyroid dysfunction celiac disease
Genetics Klinefelter’s
47XXY
Classic features Klinefelters
infertility
gynecomastia
tall male with androgen deficiency
primary hypogonadism - small firm testes
Inheritance Noonan Syndrome
Autosomal dominant