Skip to main content
Top
Published in: BMC Neurology 1/2022

Open Access 01-12-2022 | Schizophrenia | Case report

Muscle magnetic resonance imaging abnormality in neuroleptic malignant syndrome: a case report

Authors: Yuki Kakinuma, Ryota Amano, Atsushi Ishida, Ichizo Nishino, Katsumi Taki

Published in: BMC Neurology | Issue 1/2022

Login to get access

Abstract

Background

Neuroleptic malignant syndrome (NMS) is a rare and occasionally fatal undesirable reaction to dopamine antagonists, and its phenotype is diverse owing to causative drugs. Classically, elevation of serum creatine kinase is described in NMS. Some reports have described muscular pathological findings; however, muscle magnetic resonance imaging (MRI) has not been reported previously.

Case presentation

A 63-year-old woman with a history of schizophrenia presented to our hospital with a high fever, excessive sweating, muscle weakness, and elevated serum creatine kinase levels. Muscle MRI revealed T2 high-intensity lesions in several muscles with gadolinium enhancement, and the pathology of the muscle biopsy showed a very mild presence of muscle fiber necrosis and regeneration with type 2c fibers without inflammation. Her symptoms resolved by treatment with levodopa/carbidopa, dantrolene. Finally, the patient was diagnosed with NMS.

Conclusions

This is the first report of muscle MRI abnormalities in a patient with NMS. Muscle MRI abnormalities in NMS may be associated with non-inflammatory myopathic changes. The cause of creatine kinase elevation cannot be explained by abnormal strong muscle contraction nor inflammation.
Literature
1.
go back to reference Caroff SN. The neuroleptic malignant syndrome. J Clin Psychiatry. 1980;41(3):79–83.PubMed Caroff SN. The neuroleptic malignant syndrome. J Clin Psychiatry. 1980;41(3):79–83.PubMed
5.
go back to reference van Rensburg R, Decloedt EH. An Approach to the Pharmacotherapy of Neuroleptic Malignant Syndrome. Psychopharmacol Bull. 2019;49(1):84–91.PubMedPubMedCentral van Rensburg R, Decloedt EH. An Approach to the Pharmacotherapy of Neuroleptic Malignant Syndrome. Psychopharmacol Bull. 2019;49(1):84–91.PubMedPubMedCentral
Metadata
Title
Muscle magnetic resonance imaging abnormality in neuroleptic malignant syndrome: a case report
Authors
Yuki Kakinuma
Ryota Amano
Atsushi Ishida
Ichizo Nishino
Katsumi Taki
Publication date
01-12-2022
Publisher
BioMed Central
Published in
BMC Neurology / Issue 1/2022
Electronic ISSN: 1471-2377
DOI
https://doi.org/10.1186/s12883-022-02937-2

Other articles of this Issue 1/2022

BMC Neurology 1/2022 Go to the issue