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Questions and Answers
Which of the following is NOT a condition associated with dysmelia?
Which of the following is NOT a condition associated with dysmelia?
- Achondroplasia (correct)
- Amelia
- Syndactyly
- Polydactyly
Individuals with achondroplasia have a normal intelligence.
Individuals with achondroplasia have a normal intelligence.
True (A)
What is the typical maximal height range in individuals with achondroplasia?
What is the typical maximal height range in individuals with achondroplasia?
120-125 cm
The fusion of fingers or toes from birth is known as __________.
The fusion of fingers or toes from birth is known as __________.
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Match the condition with its description:
Match the condition with its description:
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Study Notes
Dysmelia
- Congenital malformations of the extremities
- Amelia: Absence of a whole limb
- Polydactyly: An excess of fingers or toes
- Oligodactyly: A deficiency of fingers or toes
- Syndactyly: Fusion of fingers or toes at birth
Achondroplasia
- A disorder affecting endochondral bone growth
- Epiphyseal fusion occurs prematurely, impacting longitudinal bone growth
- Clinical Findings:
- Disproportionate short stature with the maximum height of 120-125 cm
- Short, stocky extremities (micromelia) with O-shaped leg alignment
- Characteristic facial features, including a depressed nasal bridge, a prominent forehead, and a larger skull
- Joint malformations of the hip with increased lumbar lordosis (curve of the lower back)
- Spinal stenosis
- Normal intelligence
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