Abstract
Introduction: The aim of this study was to evaluate the muscle MRI pattern of 9 patients (median age: 6.5 ± 2.74 years) affected by classic infantile-onset Pompe disease who were treated with enzyme replacement therapy. Methods: We performed and qualitatively scored T1-weighted (T1-w) sequences of the facial, shoulder girdle, paravertebral, and lower limb muscles and short-tau inversion recovery (STIR) sequences of the lower limbs using the Mercuri and Morrow scales, respectively. Results: On T1-w images, mild (grade 1) or moderate (grade 2) involvement was found in the tongue in 6 of 6 patients and in the adductor magnus muscle in 6 of 9. STIR hyperintensity was detected in all areas examined and was categorized as limited to mild in 5 of 8 patients. Conclusions: On T1-w sequences, mild/moderate adipose substitution in the adductor magnus and tongue muscles was documented. STIR edema-like alterations of thigh and calf muscles are novel findings. Correlations with biopsy findings and clinical parameters are needed to fully understand these findings. Muscle Nerve 55: 841–848, 2017. © 2016 Wiley Periodicals, Inc.
Original language | English |
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Pages (from-to) | 841-848 |
Number of pages | 8 |
Journal | Muscle and Nerve |
Volume | 55 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2017 |
Keywords
- glycogenosis II
- infantile-onset Pompe disease
- muscle MRI
- Pompe disease
- STIR
- T2
- adductor magnus muscle
- Article
- child
- clinical article
- clinical assessment
- clinical evaluation
- controlled study
- enzyme replacement
- female
- gastrocnemius muscle
- gluteus muscle
- glycogen storage disease type 2
- human
- leg muscle
- male
- muscle disease
- muscle edema
- nuclear magnetic resonance imaging
- nuclear magnetic resonance scanner
- paraspinal muscle
- pelvic girdle
- preschool child
- priority journal
- qualitative analysis
- school child
- semimembranosus muscle
- semitendinous muscle
- shoulder girdle
- tongue
- adipose tissue
- complication
- diagnostic imaging
- edema
- image processing
- pathology
- skeletal muscle
- Adipose Tissue
- Child
- Child, Preschool
- Edema
- Female
- Glycogen Storage Disease Type II
- Humans
- Image Processing, Computer-Assisted
- Magnetic Resonance Imaging
- Male
- Muscle, Skeletal