Classic Presentations Flashcards
(154 cards)
Gout, intellectual disability, self mutilating behavior in a boy
Lesch-Nyhan Syndrome (HGPRT deficiency, X-linked recessive)
Situs inversus, chronic ear infections, sinusitus, bronchiectasis, infertility
Kartagener syndrome (dynein arm defect affecting cilia)
Blue sclera
Osteogenesis imperfecta (type I collagen defect)
Elastic skin, hypermobility of joints, ^ bleeding tendency
Ehlers Danlos syndrome (type V collagen defect type III collagen defect seen in vascular subtype of ED)
Arachnodactyly, lens dislocation (upward and temporal), aortic dissection, hyperflexible joints
Marfan syndrome (fibrillin defect)
Arachnodactyly, pectus deformity, lens dislocation (downward)
Homocystinuria (autosomal recessive)
Cafe- au-lait spots (unilateral), polyostotic fibrous dysplasia, precocious puberty, multiple endocrine abnormalities
McCune-Albright syndrome (Gs-protein activating mutation)
Meconium ileus in neonate, recurrent pulmonary infections, nasal polyps, pancreatic insufficiency, infertility/subfertility
Cystic Fibrosis (CFTR gene defect, chromosome 7, Phe 508 deletion)
Calf pseudohypertrophy
Muscular dystrophy (most commonly Duchenne, due to X-linked recessive framseshift mutation of dystrophin gene)
Child uses arms to stand up from squat
Duchenne muscular dystrophy (Gowers signs)
Slow, progressive muscle weakness in boys
Becker muscular dystrophy (x-linked non frameshift deletions in dystrophin; less severe than Duchenne)
Infant with cleft lip/palate, microcephaly or holoprosencephaly, polydactyly, cutis aplasia
Patau Syndrome (trisomy 13)
Infant with microcephaly, rocker bottom feet, clenched hands and structural heart defect.
Edward Syndrome (trisomy 18)
Single palmar crease
Down Syndrome
Confusion, ophthalmoplegia/nystagmus, ataxia
Wernicke encephalopathy
Dilated cardiomyopathy/high output heart failure, edema, alcoholism or malnutrition
Wet beriberi (thiamine [vitamin B1] deficiency)
Burning feet syndrome
Vitamin B5 deficiency
Dermatitis, dementia, diarrhea
Pellagra (niacin [vitamin B3] deficiency)
Swollen gums, mucosal bleeding, poor wound healing, petechiae
Scurvy (vitamin C deficiency: can’t hydroxylate proline/lysine for collagen synthesis); tea and toast diet
Bowlegs in children, bone pain and muscle weakness
Rickets (children), osteomalacia (adults), vitamin D deficiency
Hemorrhagic disease of newborns with increase PT, increase PTT
Vitamin K deficiency
Bluish black connective tissue, ear cartilage, sclerae; urine turns black on prolonged exposure to air
Alkaptonuria (homogentisate oxidase deficiency; ochronosis)
Chronic exercise intolerance with myalgia, fatigue, painful cramps, myoglobinuria
McArdle disease (skeletal muscle glycogen phosphorylase deficiency)
Infant with hypoglycemia, hepatomegaly
Cori disease (debranching enzyme deficiency) or Von Gierke disease (glucose 6 phosphatase deficiency, more severe)