Slide 068 — mucopolysaccharidoses

Clean FRCS notes with inline figures

Mucopolysaccharidosis

Clinical photo of these two patients showing:

•Proportional dwarfism

•Coarse facies, hypertelorism, short nasal bridge, broad mouth, wide gap between teeth

•[Telorism: abnormally increased lateral distance between the orbits]

•Short neck, kyphoscoliosis

•UL: carpal tunnel syndrome

•LL: genu valgum, joint contracture (laxity in Morquio)

Suspect mucopolysaccharidosis, other features:

•Pectus carinatum

•Organomegaly

•Morquio: normal IQ, cloudy cornea

XR features:

•C Spine: odontoid hypoplasia with C1/2 instability

•TL spine: kyphoscoliosis, bullet shaped vertebra

•UL: bullet shaped phalanges

•Hips: pelvis ”wine glass” - broad flat ilium and inferior constriction, coxa vara, dysplastic hip

•Knees: genu valgum

Diagnosis:

•Urine: excess mucopolysaccharides

•Skin: fibroblast culture

•Intrauterine chorionic villous sampling

•Mucopolysaccharidoses

•Group of 13 metabolic syndrome characterized by lysosomal enzyme deficiency with aggregation of partially degraded glycosaminoglycan → disrupt resting zone in physis

Inheritance: AR, except Hunter’s (XR)

•Diagnosed by biochemical analysis urine (Morquio: keratin sulphate)

•If survival to adulthood, likely Morquio

Direct Q&A

Q1 What signs or features are listed for mucopolysaccharidoses?

Pectus carinatum

•Organomegaly

•Morquio: normal IQ, cloudy cornea

Q2 What are the radiographic findings for mucopolysaccharidoses?

•C Spine: odontoid hypoplasia with C1/2 instability

•TL spine: kyphoscoliosis, bullet shaped vertebra

•UL: bullet shaped phalanges

•Hips: pelvis ”wine glass” - broad flat ilium and inferior constriction, coxa vara, dysplastic hip

•Knees: genu valgum

Q3 How is mucopolysaccharidoses managed?

•[Telorism: abnormally increased lateral distance between the orbits]

•Short neck, kyphoscoliosis

•UL: carpal tunnel syndrome

•LL: genu valgum, joint contracture (laxity in Morquio)

Suspect mucopolysaccharidosis, other features:

•Pectus carinatum

•Organomegaly

•Morquio: normal IQ, cloudy cornea

XR features:

•C Spine: odontoid hypoplasia with C1/2 instability

•TL spine: kyphoscoliosis, bullet shaped vertebra

•UL: bullet shaped phalanges

•Hips: pelvis ”wine glass” - broad flat ilium and inferior constriction, coxa vara, dysplastic hip

•Knees: genu valgum

Diagnosis:

•Urine: excess mucopolysaccharides

Raw speaker-note hierarchy audit

#	marL	indent	original note line
1	None	None	Mucopolysaccharidosis
2	None	None	Clinical photo of these two patients showing:
3	0	0	Proportional dwarfism
4	0	0	Coarse facies, hypertelorism, short nasal bridge, broad mouth, wide gap between teeth
5	0	0	[Telorism: abnormally increased lateral distance between the orbits]
6	None	None	Short neck, kyphoscoliosis
7	None	None	UL: carpal tunnel syndrome
8	None	None	LL: genu valgum, joint contracture (laxity in Morquio)
9	None	None	Suspect mucopolysaccharidosis, other features:
10	None	None	Pectus carinatum
11	None	None	Organomegaly
12	None	None	Morquio: normal IQ, cloudy cornea
13	None	None	XR features:
14	None	None	C Spine: odontoid hypoplasia with C1/2 instability
15	None	None	TL spine: kyphoscoliosis, bullet shaped vertebra
16	None	None	UL: bullet shaped phalanges
17	0	0	Hips: pelvis ”wine glass” - broad flat ilium and inferior constriction, coxa vara, dysplastic hip
18	None	None	Knees: genu valgum
19	None	None	Diagnosis:
20	None	None	Urine: excess mucopolysaccharides
21	None	None	Skin: fibroblast culture
22	None	None	Intrauterine chorionic villous sampling
23	None	None	Mucopolysaccharidoses
24	None	None	Group of 13 metabolic syndrome characterized by lysosomal enzyme deficiency with aggregation of partially degraded glycosaminoglycan → disrupt resting zone in physis
25	None	None	Inheritance: AR, except Hunter’s (XR)
26	None	None	Diagnosed by biochemical analysis urine (Morquio: keratin sulphate)
27	None	None	If survival to adulthood, likely Morquio

lvl

marL

indent

logical

original note line

None

Mucopolysaccharidosis

None

Clinical photo of these two patients showing:

Proportional dwarfism

Coarse facies, hypertelorism, short nasal bridge, broad mouth, wide gap between teeth

[Telorism: abnormally increased lateral distance between the orbits]

None

Short neck, kyphoscoliosis

None

UL: carpal tunnel syndrome

None

LL: genu valgum, joint contracture (laxity in Morquio)

None

Suspect mucopolysaccharidosis, other features:

None

Pectus carinatum

None

Organomegaly

None

Morquio: normal IQ, cloudy cornea

None

XR features:

None

C Spine: odontoid hypoplasia with C1/2 instability

None

TL spine: kyphoscoliosis, bullet shaped vertebra

None

UL: bullet shaped phalanges

Hips: pelvis ”wine glass” - broad flat ilium and inferior constriction, coxa vara, dysplastic hip

None

Knees: genu valgum

None

Diagnosis:

None

Urine: excess mucopolysaccharides

None

Skin: fibroblast culture

None

Intrauterine chorionic villous sampling

None

Mucopolysaccharidoses

None

Group of 13 metabolic syndrome characterized by lysosomal enzyme deficiency with aggregation of partially degraded glycosaminoglycan → disrupt resting zone in physis

None

Inheritance: AR, except Hunter’s (XR)

None

Diagnosed by biochemical analysis urine (Morquio: keratin sulphate)

None

If survival to adulthood, likely Morquio

Improved semantic hierarchy used for the study notes

#	semantic level	section?	rewritten line
1	0		Mucopolysaccharidosis
2	0	yes	Clinical photo of these two patients showing:
3	1		Proportional dwarfism
4	1		Coarse facies, hypertelorism, short nasal bridge, broad mouth, wide gap between teeth
5	1		[Telorism: abnormally increased lateral distance between the orbits]
6	1		Short neck, kyphoscoliosis
7	1		UL: carpal tunnel syndrome
8	1		LL: genu valgum, joint contracture (laxity in Morquio)
9	0	yes	Suspect mucopolysaccharidosis, other features:
10	1		Pectus carinatum
11	1		Organomegaly
12	1		Morquio: normal IQ, cloudy cornea
13	0	yes	XR features:
14	1		C Spine: odontoid hypoplasia with C1/2 instability
15	1		TL spine: kyphoscoliosis, bullet shaped vertebra
16	1		UL: bullet shaped phalanges
17	1		Hips: pelvis ”wine glass” - broad flat ilium and inferior constriction, coxa vara, dysplastic hip
18	1		Knees: genu valgum
19	0	yes	Diagnosis:
20	1		Urine: excess mucopolysaccharides
21	1		Skin: fibroblast culture
22	1		Intrauterine chorionic villous sampling
23	1		Mucopolysaccharidoses
24	1		Group of 13 metabolic syndrome characterized by lysosomal enzyme deficiency with aggregation of partially degraded glycosaminoglycan → disrupt resting zone in physis
25	0	yes	Inheritance: AR, except Hunter’s (XR)
26	1		Diagnosed by biochemical analysis urine (Morquio: keratin sulphate)
27	1		If survival to adulthood, likely Morquio

semantic level

section?

rewritten line

Mucopolysaccharidosis

yes

Clinical photo of these two patients showing:

Proportional dwarfism

Coarse facies, hypertelorism, short nasal bridge, broad mouth, wide gap between teeth

[Telorism: abnormally increased lateral distance between the orbits]

Short neck, kyphoscoliosis

UL: carpal tunnel syndrome

LL: genu valgum, joint contracture (laxity in Morquio)

yes

Suspect mucopolysaccharidosis, other features:

Pectus carinatum

Organomegaly

Morquio: normal IQ, cloudy cornea

yes

XR features:

C Spine: odontoid hypoplasia with C1/2 instability

TL spine: kyphoscoliosis, bullet shaped vertebra

UL: bullet shaped phalanges

Hips: pelvis ”wine glass” - broad flat ilium and inferior constriction, coxa vara, dysplastic hip

Knees: genu valgum

yes

Diagnosis:

Urine: excess mucopolysaccharides

Skin: fibroblast culture

Intrauterine chorionic villous sampling

Mucopolysaccharidoses

Group of 13 metabolic syndrome characterized by lysosomal enzyme deficiency with aggregation of partially degraded glycosaminoglycan → disrupt resting zone in physis

yes

Inheritance: AR, except Hunter’s (XR)

Diagnosed by biochemical analysis urine (Morquio: keratin sulphate)

If survival to adulthood, likely Morquio

068. mucopolysaccharidoses

Clean FRCS notes with inline figures

Mucopolysaccharidosis

Clinical photo of these two patients showing:

Suspect mucopolysaccharidosis, other features:

XR features:

Diagnosis:

Inheritance: AR, except Hunter’s (XR)

Direct Q&A

Pectus carinatum

Suspect mucopolysaccharidosis, other features:

XR features:

Diagnosis:

Raw speaker-note hierarchy audit

Improved semantic hierarchy used for the study notes