Monomelic amyotrophy of upper limb (Q83612): Difference between revisions

@@ description / pt-br / description / pt-br @@
+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.
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+August 2026Timestamp +2026-08-13T00:00:00Z
Timezone +00:00
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@@ Property / Collection date: 13 August 2026 / rank @@
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Latest 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
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.