Muscle MRI findings of HTLV-1-associated myelopathy.
We report here the muscle MRI findings in two patients with human T-cell lymphotropic virus type I-associated myelopathy (HAM). It is known that thigh muscles are vulnerable in HAM patients, but detailed information about the affected muscles has not been available. Muscle MRI findings of these patients showed that thigh muscles, especially adductor magnus, and semimembranosus muscles were severely affected, but lower leg muscles were comparatively preserved. In these affected muscles, neurogenic changes were observed by EMG. We concluded that muscle MRI is very useful to estimate the affected muscles in HAM patients.
Hamano
Tadanori
T
The Second Department of Internal Medicine, Fukui Medical University, 23-Shimoaizuki, Matsuoka-cho, Yoshida-gun, Fukui 910-1193, Japan. hamano@fmsrsa.fukui-med.ac.jp
Fujiyama
Jiro
J
Kawamura
Yasutaka
Y
Hirayama
Mikio
M
Ito
Keita
K
Inagaki
Tomoko
T
Kumano
Takanori
T
Mutoh
Tatsuro
T
Kuriyama
Masaru
M
D000368:Aged; D001921:Brain / Q000473:pathology; D002524:Cerebellar Ataxia / Q000150:complications / Q000175:diagnosis; D018450:Disease Progression; D004576:Electromyography; D005260:Female; D006801:Humans; D007866:Leg; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009128:Muscle Spasticity / Q000209:etiology; D018908:Muscle Weakness / Q000209:etiology; D018482:Muscle, Skeletal / Q000473:pathology* / Q000503:physiopathology; D009133:Muscular Atrophy / Q000175:diagnosis* / Q000209:etiology; D015493:Paraparesis, Tropical Spastic / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D011237:Predictive Value of Tests; D013116:Spinal Cord / Q000473:pathology; D013848:Thigh