Monomelic amyotrophy of upper limb (Q83612): Difference between revisions
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A amiotrofia monomélica (AM) do membro superior é caracterizada por fraqueza assimétrica lentamente progressiva, mais comumente dos músculos distais inervados pelos segmentos espinais C8 e T1. Raramente a AM pode se apresentar apenas com fraqueza proximal dos membros superiores. O envolvimento assintomático ou leve do membro superior contralateral é comum. A fraqueza geralmente é lentamente progressiva antes de atingir um platô, e a fraqueza sintomática pode se difundir para o membro oposto. A ressonância magnética pode mostrar atrofia focal da medula espinal cervical. | |||
| description / en | description / en | ||
Monomelic amyotrophy of the upper limb is characterised by slowly progressive, asymmetric weakness most commonly of distal muscles innervated by the C8 and T1 spinal segments. Rarely MMA may present with only proximal upper limb weakness. Asymptomatic or mild involvement of the contralateral upper limb is common. Weakness is usually slowly progressive before reaching a plateau, and symptomatic weakness may spread to the opposite limb. MRI may show focal cervical spinal cord atrophy. | |||
Revision as of 08:58, 15 August 2026
Monomelic amyotrophy of the upper limb is characterised by slowly progressive, asymmetric weakness most commonly of distal muscles innervated by the C8 and T1 spinal segments. Rarely MMA may present with only proximal upper limb weakness. Asymptomatic or mild involvement of the contralateral upper limb is common. Weakness is usually slowly progressive before reaching a plateau, and symptomatic weakness may spread to the opposite limb. MRI may show focal cervical spinal cord atrophy.
| Language | Label | Description | Also known as |
|---|---|---|---|
| default for all languages | ID_1361112896 |
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| English | Monomelic amyotrophy of upper limb |
Monomelic amyotrophy of the upper limb is characterised by slowly progressive, asymmetric weakness most commonly of distal muscles innervated by the C8 and T1 spinal segments. Rarely MMA may present with only proximal upper limb weakness. Asymptomatic or mild involvement of the contralateral upper limb is common. Weakness is usually slowly progressive before reaching a plateau, and symptomatic weakness may spread to the opposite limb. MRI may show focal cervical spinal cord atrophy. |
