Volume 55, Issue 6 pp. 841-848
Clinical Research

Muscle MRI of classic infantile pompe patients: Fatty substitution and edema-like changes

Anna Pichiecchio MD

Corresponding Author

Anna Pichiecchio MD

Neuroradiology Department, C. Mondino National Neurological Institute, Via Mondino, 2 - 27100 Pavia, Italy

Correspondence to: A. Pichiecchio; e-mail [email protected]Search for more papers by this author
Marta Rossi MD

Marta Rossi MD

Child Neuropsychiatry Unit, Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy

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Claudia Cinnante MD

Claudia Cinnante MD

Unit of Neuroradiology, Department of Neuroscience, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy

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Giovanna Stefania Colafati MD

Giovanna Stefania Colafati MD

Neuroradiology Unit, Bambino Gesù Children's Hospital, Rome, Italy

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Roberto De Icco MD

Roberto De Icco MD

Neurology Unit, Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy

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Rossella Parini MD

Rossella Parini MD

Unit of Rare Metabolic Diseases, San Gerardo Hospital, Monza, Italy

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Francesca Menni MD

Francesca Menni MD

Pediatric Highly Intensive Care Unit, Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy

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Francesca Furlan MD

Francesca Furlan MD

Unit of Metabolic Diseases, Azienda Ospedaliera Universitaria, Padua, Italy

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Alberto Burlina MD

Alberto Burlina MD

Unit of Metabolic Diseases, Azienda Ospedaliera Universitaria, Padua, Italy

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Michele Sacchini MD

Michele Sacchini MD

Metabolic and Neuromuscular Unit, AOU Meyer Hospital, Florence, Italy

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Maria Alice Donati MD

Maria Alice Donati MD

Metabolic and Neuromuscular Unit, AOU Meyer Hospital, Florence, Italy

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Simona Fecarotta PhD, MD

Simona Fecarotta PhD, MD

Department of Translational Medicine-Section of Pediatrics, Federico II University, Naples, Italy

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Roberto Della Casa MD

Roberto Della Casa MD

Department of Translational Medicine-Section of Pediatrics, Federico II University, Naples, Italy

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Federica Deodato MD

Federica Deodato MD

Unit of Metabolism, Bambino Gesù Children's Hospital, Rome, Italy

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Roberta Taurisano MD

Roberta Taurisano MD

Unit of Metabolism, Bambino Gesù Children's Hospital, Rome, Italy

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Maja Di Rocco MD

Maja Di Rocco MD

Unit of Rare Diseases, Department of Pediatrics, Giannina Gaslini Institute, Genoa, Italy

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First published: 26 September 2016
Citations: 19

Funding: Dr. Pichiecchio received a speaker fee from Genzyme. Dr. Parini received travel and research grants and honoraria for speaking engagements from Shire, Genzyme, BioMarin, and SOBI. Dr. Fecarotta received travel support for meeting attendance from Actelion Pharmaceuticals Ltd and Genzyme, a Sanofi Company.

Conflicts of Interest: None of the other authors have anything to disclose.

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

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