100 Disorders Flashcards
Inheritance 1p36.3
Sporadic
3 major clinical features 1p36.3
Neurodev disabilities, characteristic face (straight eyebrows, deep-set eyes), hypotonia
Inheritance Aarskog Syndrome
XLR
3 major clinical features Aarskog Syndrome
Dysmorphic Features, Hand abnormalities, GU anomalies
Inheritance Achondroplasia
AD
Gene Achondroplasia
FGFR3
3 major clinical features Achondroplasia
Rhizomelic limb shortening, macrocephaly, trident hands
Characteristic Face Achondroplasia
Frontal bossing, Midface hypoplasia
Inheritance AIP
AD
3 major clinical features of AIP
Acute Attacks: severe neuropathic pain, dark urine, HTN/tachycardia (others!)
What can trigger acute attack in AIP
Sulfa drugs, EtOH, Hormones, Infections, Surgery, Smoking, Stress
Treatment for AIP
Hemin (Panhematin)
Inheritance Alagille
AD
5 ‘organ’ systems affected in Alagille
Liver, Heart, Eyes, Skeleton, Face
4 major clinical features Alagille
Bile duct paucity, pulmonic stenosis, posterior embryotoxon, butterfly-shaped vertebrae
Inheritance Alpha-1-Antitrypsin Deficiency
A-Codominant, AR
3 major clinical features Alpha-1-Antitrypsin Deficiency
Lung- emphysema, liver- jaundice, skin- panniculitis
Inheritance alpha thal
Complex!
3 major clinical features HbH disease
Moderate anemia, hepatosplenomegaly, jaundice
3 major clinical features Hb Barts
Hydrops fetalis, severe anemia, hepatosplenomegaly
3 signs seen in women carrying fetus affected with Hb Barts
Preeclampsia, premature delivery, abnormal bleeding
Inheritance Alport Syndrome
XL (80%), AR (15%), AD (5%)
3 major clinical features Alport
Kidney disease, SNHL, eye abnormalities
Inheritance ALS
Most sporadic (or AD, AR, XL)
3 major clinical features of ALS
Asymmetric limb weakness, bulbar symptoms, muscle atrophy
Inheritance Androgen Insensitivity Syndrome
XLR
Features of Complete AIS
Externally female, no uterus, undescended testes, sparse pubic hair
Features of Partial AIS
Genitalia can be typical/ambiguous, born with male sex characteristics, often infertile, breast enlargement at puberty
Inheritance Angelman Syndrome
Imprinted (loss of maternal copy)
Etiologies for Angelman Syndrom
Del mat, pat UPD, loss UBE3A gene
3 major features of Angelman Syndrome
Severe ID with speech problems, ataxia gait, happy/excitable/laughter
Inheritance Antley-Bixler Syndrome
AR
3 major clinical features of Antley-Bixler Syndrome
Ambiguous genitalia, skeletal anomalies, chonanal atresia
Signs in pregnant women carrying Antley-Bixler fetus
Mild symptoms: hirsutism, acne, deep voice
Antley Bixler Syndrome is due to what enzyme deficiency
Cytochrome P450 Oxidoreductase
Inheritance for Ataxia Telangiectasia
AR
Hallmark in blood of Ataxia Telangiectasia
Elevated AFP
3 major clinical features of A-T
Ataxia (before 5), telangiectasis in eyes and skin, increased risk of leukaemia and lymphoma
Inheritance of Ataxia w/ Oculomotor Apraxia
AR
3 major clinical features of Ataxia with Oculomotor Apraxia
Ataxia, Oculomotor Apraxia, Neuropathy, Chorea
Inheritance of Bardet-Biedl Syndrome
AR
3 major features of Bardet-Biedl Syndrom
Vision problems, obesity, ID, genital anomalies and anosmia
Inheritance of BMD
xlr
3 major clinical features of BMD
Muscle weakness, cardiomyopathy, may live into 40s
Inheritance of BWS
AD (imprinting)
Etiologies for BWS
Imprinting of chromosome 11, paternal UPD of chromosome 11, mutations in CDKN1C
5 clinical features of BWS
Macrosomia, Macroglossia, visceromegaly, hemihyperplasia, abdominal wall defect
Increased risk for what kind of cancer in BWS
Wilm’s Tumor and hepatoblastoma
Inheritance of Beta-thal
AR
Beta that comes to attention at what age?
6-12 months
3 major features of infants with beta thal
Jaundice, FTT, HSM
3 major features of adults with beta thal
Severe anemia with Heinz bodies, BM hypoplasia, splenomegaly
Inheritance of BPES
AD
3 major features of BPES
Blepharophimosis, Ptosis, Epicanthus Inversus
Inheritance of Bloom Syndrome
AR
3 major features of Bloom Syndrome
Short stature, butterfly-shaped patch of skin on cheeks, increased risk of cancer
Inheritance of BOR Syndrome
AD
3 major features of BOR Syndrome
Branchial arch anomalies, ear anomalies with HL, kidney anomalies
Inheritance of Brugada Syndrome
AD
Presentation of Brugada Syndrome
Ventricular arrhythmia- syncope, seizures, difficulty breathing, sudden death
Inheritance of CADASIL
AD
3 major features of CADASIL
Migraine with aura, ischemic strokes and TIA, mood/cognitive problems
Inheritance of Canavan Disease
AR
Canavan can be characterized as?
Leukodystrophy
3 major features Canavan
No motor skills, feed/swallowing problems, seizures, sleep problems
Inheritance Cardio-Facial-Cutaneous Syndrome
AD
3 major features of Cardio-Facial-Cutaneous Syndrome
Heart- Pulmonic stenosis, characteristic face, Skin- wirnkled palms/soles
Inheritance of CMT
AD, AR, XL, Mt
3 major features of CMT1A
Toe walking, clumsy, foot deformities
Severity of CMT2A compared to CMT1A
CMT2A is more severe- earlier onset and require wheelchair
Inheritance of CHARGE syndrome
AD
CHARGE stands for what features?
Coloboma, Heart defect, Atresia Choanal, Retarded growth, Genital abnormalities, Ear abnormalities
Inheritance Cleidocranial Dysplasia
AD
3 major features of Cleidocranial dysplasia
Bone- absent clavicles, unusually shaped teeth, dysmorphic face
Inheritance Cockayne Syndrome
AR
3 major features of Cockayne Syndrome
Microcephaly, photosensitivity, FTT
People with Cockyne Syndrome have life threatening allergy to?
Metronidazole (antibiotic)
Inheritance Coffin-Lowry Syndrome
XLD
What sex is Coffin-Lowry syndrome more severe in?
Males
3 major features of Coffin-Lowry syndrome?
Profound ID, characteristic face, stimulus-induced drop episodes
Inheritance of CAH
AR
3 major features of classic CAH
Decreased fertility, females with hursutism/baldness, irregular menses, lose salt in urine (Females with ambiguous genitalia, males normal genitalia)
Inheritance Congenital Contractural Arachnodactyly
AD
3 major features of Congenital Contractural Arachnodactyly
Tall/long limbs, arachnodactyly, joint contractors (rarely heart problems)
Severe form of Congenital Contractural Arachnodactyly
Includes heart and GI problems- don’t live past infancy
Inheritance of non-syndromic hearing loss
Most AR, some AD, few XL or mt
1 clinical feature of non-syndromic hearing loss
Partial or total loss of hearing that is not accompanied by any other signs/symptoms
Inheritance Cornelia de Lange Syndrome
AD
3 major features of Cornelia de Lange Syndrome
Short stature, abnormalities of bones in arms, ID/behavior problems, characteristic face
Inheritance of Costello Syndrome
AD (mostly de novo)
3 major features of Costello Syndrome
Development problems (FTT, DD), Heart problems (HCM), Characteristic face (curly/sparse hair)
People with Costello syndrome have risk for what kind of tumor
Rhabdomyosarcoma or neuroblastoma
Inheritance of Cri du Chat
Sporadic (usually)
Deletion in Cri du Chat is where?
5p
3 major features of Cri du Chat
High-pitched/cat-like cry, microcephaly, low birth weight
Inheritance of CF
AR
3 major features of CF
Pulmonary problems (chronic infections, breathing problems), GI (pancreatic insufficiency), extra salty sweat, male infertility
Inheritance of Diastrophic Dysplasia
AR
3 major features of Diastrophic dysplasia
Short stature with very short arms/legs, early-onset osteoarthritis and joint contractors, characteristic face
Inheritance of 22q11
Usually de novo
Where is deletion in 22q11?
22q11
3 major features of 22q11
Velopharyngeal incompetence, CHD, immune deficiency, increased risk for psych problems
Inheritance of DMD
XLR
3 major features of DMD
Muscle weakness and wasting– wheelchair by adolescence, cardiomyopathy, live into 20s
Inheritance of early-onset Alzheimer’s Disease
AD
3 major features of early-onset AD
Forgetfulness that interferes with daily life, needing help with personal care, may be personality/behaviour changes
Inheritance of Classic EDS
AD
3 major features of Classic EDS
Skin hyper extensibility, widened atrophic scars, joint hypermobility
Inheritance of hypermobile EDS
AD
3 major features of hypermobile EDS
Joint hyper mobility (complain of chronic pain), soft skin, absence of fragility
Inheritance of Vascular EDS
AD
3 major features of Vascular EDS
Arterial aneurysms, intestinal rupture, uterine rupture during pregnancy
Inheritance of Factor V Leiden Deficiency
Number of mutations influences risk
3 major features of Factor V Leiden Deficiency
Thrombophilia, increased risk for deep venous thrombosis, slight increased risk of miscarriage
Inheritance of FAP
AD
3 major features of FAp
Hundreds of colon polyps, increased risk for CRC, desmoid tumors
Lifetime risk of CRC with FAP
99%
Start colonoscopies at what age in FAP
10-12 yo
Inheritance of Familial Dysautonomia
AR
Unique features in Familial dysautonomia
Infancy- lack of tears, difficulty maintaining body temp; Kids- hold breath for long time; School age- bed wetting, reduced sensitivity to temperature changes/pain, BP regulation problems; Adult- walking problems, impaired kidney function
Inheritance Familial Mediterranean Fever
AR
Major feature in Familial Mediterranean fever
Recurrent episodes of painful inflammation in abdomen/chest/ joints
Inheritance of Fanconi Anemia
AR (Rarely XLR, AD)
3 major clinical features of Fanconi Anemia
BM failure, organ fetch, malformed thumbs/forearms
People with Fanconi Anemia have increased risk for what kind of cancer?
Acute myeloid leukaemia, tumors of head/neck/skin/GI
Inheritance of Crouzon Syndrome
AD
Inheritance of Apert Syndrome
AD
Inheritance of Pfeiffer Syndrome
AD
Inheritance of Muenke Syndrome
AD
3 major clinical features of Crouzon syndrome
Vrachycephaly, cervical spine anomalies, mild shortening of humerus/femora
2 major clinical features of Apert Syndrome
Brachycephaly, Mitten-type syndactyly of hands and feet
1 major clinical feature of Pfeiffer syndrome
Broad/angulated thumbs and great toes (also type 2- cloverleaf skull)
3 major features of Meunke Syndrome
Coronal synostosis, anomalies of hands and feet, hearing loss
Inheritance of Fragile X syndrome
XLR
Anticipation in Fragile X syndrome when passed through what parent?
Mom
3 major features of Fragile X
DD/ID, behaviour problems, dysmorphic face
Risks to Fragile X permutation carriers
FXTAS, POI
Premutation repeat number in Fragile X
55-200
Full mutation repeat number in Fragile X
200+
What trinucleotide repeat is expanded in Fragile X?
CGG
Inheritance of Friedreich’s Ataxia
AR
3 major features of Friedreich’s Ataxia
Ataxia, HCM, DM, scoliosis
What trinucleotide repeat is expanded in Friedreich’s ataxia
GAA
Premutation repeat number in Friedreich’s Ataxia
34-65
Full mutation repeat number in Friedreich’s Ataxia
66-1300
Inheritance of Fryns Syndrome
AR
3 major features of Fryns Syndrome
Congenital diaphragmatic hernia (pulm hypoplasia), abnormalities of fingers and toes, dysmorphic features)