MRI findings of benign monomelic amyotrophy of lower limb

Tadanori Hamano; Tatsuro Mutoh; Mikio Hirayama; Keita Ito; Masumi Kimura; Takashi Aita; Kazuhiro Kiyosawa; Tetsuo Ohtaki; Masaru Kuriyama

doi:10.1016/S0022-510X(99)00086-6

MRI findings of benign monomelic amyotrophy of lower limb

Tadanori Hamano, Tatsuro Mutoh, Mikio Hirayama, Keita Ito, Masumi Kimura, Takashi Aita, Kazuhiro Kiyosawa, Tetsuo Ohtaki, Masaru Kuriyama

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Abstract

We report here magnetic resonance imaging (MRI) findings of two patients with benign monomelic amyotrophy of lower limb. Both subjects showed unilateral amyotrophy of the lower limb with a benign clinical course, and the affected muscles demonstrated neurogenic changes. On T1- and T2-weighted MRI, marked atrophy and increased signal intensity were found mainly in gastrocnemius and soleus muscles. Moreover, MRI examination also revealed that thigh muscles including semitendinosus, semimembranosus, and vastus intermedius and lateralis muscles were involved in one of the patients. We concluded that muscle MRI is very useful for detecting affected muscles, especially deep skeletal muscles in patients with benign monomelic amyotrophy of lower limb. Copyright (C) 1999 Elsevier Science B.V.

Original language	English
Pages (from-to)	184-187
Number of pages	4
Journal	Journal of the Neurological Sciences
Volume	165
Issue number	2
DOIs	https://doi.org/10.1016/S0022-510X(99)00086-6
Publication status	Published - 01-06-1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

Neurology
Clinical Neurology

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10.1016/S0022-510X(99)00086-6

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title = "MRI findings of benign monomelic amyotrophy of lower limb",

abstract = "We report here magnetic resonance imaging (MRI) findings of two patients with benign monomelic amyotrophy of lower limb. Both subjects showed unilateral amyotrophy of the lower limb with a benign clinical course, and the affected muscles demonstrated neurogenic changes. On T1- and T2-weighted MRI, marked atrophy and increased signal intensity were found mainly in gastrocnemius and soleus muscles. Moreover, MRI examination also revealed that thigh muscles including semitendinosus, semimembranosus, and vastus intermedius and lateralis muscles were involved in one of the patients. We concluded that muscle MRI is very useful for detecting affected muscles, especially deep skeletal muscles in patients with benign monomelic amyotrophy of lower limb. Copyright (C) 1999 Elsevier Science B.V.",

author = "Tadanori Hamano and Tatsuro Mutoh and Mikio Hirayama and Keita Ito and Masumi Kimura and Takashi Aita and Kazuhiro Kiyosawa and Tetsuo Ohtaki and Masaru Kuriyama",

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T1 - MRI findings of benign monomelic amyotrophy of lower limb

AU - Hamano, Tadanori

AU - Mutoh, Tatsuro

AU - Hirayama, Mikio

AU - Ito, Keita

AU - Kimura, Masumi

AU - Aita, Takashi

AU - Kiyosawa, Kazuhiro

AU - Ohtaki, Tetsuo

AU - Kuriyama, Masaru

PY - 1999/6/1

Y1 - 1999/6/1

N2 - We report here magnetic resonance imaging (MRI) findings of two patients with benign monomelic amyotrophy of lower limb. Both subjects showed unilateral amyotrophy of the lower limb with a benign clinical course, and the affected muscles demonstrated neurogenic changes. On T1- and T2-weighted MRI, marked atrophy and increased signal intensity were found mainly in gastrocnemius and soleus muscles. Moreover, MRI examination also revealed that thigh muscles including semitendinosus, semimembranosus, and vastus intermedius and lateralis muscles were involved in one of the patients. We concluded that muscle MRI is very useful for detecting affected muscles, especially deep skeletal muscles in patients with benign monomelic amyotrophy of lower limb. Copyright (C) 1999 Elsevier Science B.V.

AB - We report here magnetic resonance imaging (MRI) findings of two patients with benign monomelic amyotrophy of lower limb. Both subjects showed unilateral amyotrophy of the lower limb with a benign clinical course, and the affected muscles demonstrated neurogenic changes. On T1- and T2-weighted MRI, marked atrophy and increased signal intensity were found mainly in gastrocnemius and soleus muscles. Moreover, MRI examination also revealed that thigh muscles including semitendinosus, semimembranosus, and vastus intermedius and lateralis muscles were involved in one of the patients. We concluded that muscle MRI is very useful for detecting affected muscles, especially deep skeletal muscles in patients with benign monomelic amyotrophy of lower limb. Copyright (C) 1999 Elsevier Science B.V.

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MRI findings of benign monomelic amyotrophy of lower limb

Abstract

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