What do they have in common?
Variants
"Pathognomonic"
IEM syndromes
Laboratory findings
100

Fucosidosis, beta-mannosidosis, Fabry disease

What are causes of angiokeratomas?

100

L444P (p.Leu483Pro)

What is Gaucher disease?

100

Sweaty feet odor

What is isovaleric acidemia?

100

Myoclonic epilepsy, ragged red fibers

What is MERRF?

100

Hexanoylglycine

What is medium-chain acyl-CoA dehydrogenase deficiency (MCAD)?

200

Sjogren-Larsson syndrome, Gaucher type II, Chanarin Dormann syndrome

What are causes of ichthyosis?

200

m.3243A>G

What is MELAS?

200

Sweet smelling cerumen

What is maple syrup urine disease?

200

2-3 toe Y-shaped syndactyly, IUGR, genital anomalies

What is Smith-Lemli-Opitz syndrome?

200

Succinylacetone

What is tyrosinemia type I?

300

Fabry disease, propionic acidemia, Barth syndrome

What are causes of cardiomyopathy?

300

Q188R

What is classic galactosemia?

300

Adrenal calcifications

What is Wolman disease (lysosomal acid lipase deficiency)?

300

Large fontanelle, renal cysts, hepatomegaly

What are Zellweger spectrum disorders?

300

Alloisoleucine

What is maple syrup urine disease?

400

Tyrosinemia type I, Wilson disease, cholesterol ester storage disease, GSD IV

What are causes of cirrhosis?

400

N314D

What is Duarte variant galactosemia?

400

Vertical supranuclear gaze palsy

What is Niemann-Pick type C?

400

Diarrhea, cataracts, tendinous xanthomas

What is cerebrotendinous xanthomatosis?

400

Lyso-C26:0 phosphatidylcholine, isolated

What is X-linked adrenoleukodystrophy?

500

Proline synthetic defects, Menkes disease, COG7-CDG

What are causes of cutis laxa / skin laxity?

500

S135L

What is clinical variant galactosemia?

500

White matter involvement of the posterior regions

What is X-linked adrenoleukodystrophy?

500

Pigmentary retinopathy, progressive external ophthalmoplegia, cardiac conduction anomalies, elevated lactate

What is Kearns-Sayre syndrome?

500

Gamma-hydroxybutyrate

What is succinic semialdehyde dehydrogenase deficiency (SSADH)?

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