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Corticosteroid-Induced Myopathy in a 10-Year-Old: A Case from Kara (Togo)

Received: 1 October 2025     Accepted: 7 January 2026     Published: 16 January 2026
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Abstract

Introduction: Corticosteroid-induced myopathy (CIM) remains underdiagnosed, particularly in children. Its acute form can emerge rapidly after the initiation of corticosteroid therapy, sometimes within the first few days. Identification relies on a constellation of clinical-chronological and biological arguments, together with observation of the course after steroid withdrawal. We report an acute CIM in a 10-year-old girl from Kara (Togo) to illustrate a pragmatic diagnostic approach in a resource-limited setting. Case presentation: A 10-year-old schoolgirl referred for right-sided visual loss received an initial corticosteroid course with methylprednisolone 240 mg/day for 5 days, with partial improvement. Two weeks later, following a relapse, she received a second course of methylprednisolone 1 g/day for 5 days. Four days after completing this treatment, she developed diffuse myalgias and proximal weakness with inability to raise the lower limbs and walk. Beyond the clinical picture, laboratory tests showed creatine kinase (CK) 876 U/L (≈7.6× the upper limit of normal [ULN]) and aspartate aminotransferase (AST) ≈2.5× ULN, supporting a diagnosis of CIM. Other muscle enzymes were unavailable, as was electromyography. Management consisted of steroid withdrawal, analgesics and anti-inflammatory agents, and physiotherapy. Clinical improvement occurred within 72 hours; on day 7, CK was 430 U/L (≈3.7× ULN), followed by normalization to 97 U/L at 3 months, with complete functional recovery. Conclusion: This observation illustrates that early-onset proximal weakness occurring soon after corticosteroid pulses should prompt consideration of CIM, even in the absence of EMG. In resource-limited contexts, the trajectory of CK and the response to dechallenge are decisive elements that help optimize prognosis in a timely manner.

Published in Clinical Neurology and Neuroscience (Volume 10, Issue 1)
DOI 10.11648/j.cnn.20261001.11
Page(s) 1-4
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2026. Published by Science Publishing Group

Keywords

Myopathy, Corticosteroid, Child, Togo, Sub-Saharan Africa

References
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[2] Surmachevska N, Tiwari V. Corticosteroid Induced Myopathy. In: StatPearls. Treasure Island (FL): StatPearls Publishing,
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[10] Schakman O, Kalista S, Barbé C, et al. Glucocorticoid-induced skeletal muscle atrophy. Int J Biochem Cell Biol 2013; 45: 2163-2172.
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Cite This Article
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    Agba, L., Guinhouya, K. M., Anayo, K. N., Ephoevi-Ga, A., Apetse, K., et al. (2026). Corticosteroid-Induced Myopathy in a 10-Year-Old: A Case from Kara (Togo). Clinical Neurology and Neuroscience, 10(1), 1-4. https://doi.org/10.11648/j.cnn.20261001.11

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    ACS Style

    Agba, L.; Guinhouya, K. M.; Anayo, K. N.; Ephoevi-Ga, A.; Apetse, K., et al. Corticosteroid-Induced Myopathy in a 10-Year-Old: A Case from Kara (Togo). Clin. Neurol. Neurosci. 2026, 10(1), 1-4. doi: 10.11648/j.cnn.20261001.11

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    AMA Style

    Agba L, Guinhouya KM, Anayo KN, Ephoevi-Ga A, Apetse K, et al. Corticosteroid-Induced Myopathy in a 10-Year-Old: A Case from Kara (Togo). Clin Neurol Neurosci. 2026;10(1):1-4. doi: 10.11648/j.cnn.20261001.11

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  • @article{10.11648/j.cnn.20261001.11,
      author = {Lehleng Agba and Kokou Mensah Guinhouya and Komla Nyinèvi Anayo and Adama Ephoevi-Ga and Komi Apetse and Vinyo Kumako and Damelan Kombaté and Komi Assogba and Mofou Belo and Agnon Ayelola Balogou},
      title = {Corticosteroid-Induced Myopathy in a 10-Year-Old: A Case from Kara (Togo)},
      journal = {Clinical Neurology and Neuroscience},
      volume = {10},
      number = {1},
      pages = {1-4},
      doi = {10.11648/j.cnn.20261001.11},
      url = {https://doi.org/10.11648/j.cnn.20261001.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.cnn.20261001.11},
      abstract = {Introduction: Corticosteroid-induced myopathy (CIM) remains underdiagnosed, particularly in children. Its acute form can emerge rapidly after the initiation of corticosteroid therapy, sometimes within the first few days. Identification relies on a constellation of clinical-chronological and biological arguments, together with observation of the course after steroid withdrawal. We report an acute CIM in a 10-year-old girl from Kara (Togo) to illustrate a pragmatic diagnostic approach in a resource-limited setting. Case presentation: A 10-year-old schoolgirl referred for right-sided visual loss received an initial corticosteroid course with methylprednisolone 240 mg/day for 5 days, with partial improvement. Two weeks later, following a relapse, she received a second course of methylprednisolone 1 g/day for 5 days. Four days after completing this treatment, she developed diffuse myalgias and proximal weakness with inability to raise the lower limbs and walk. Beyond the clinical picture, laboratory tests showed creatine kinase (CK) 876 U/L (≈7.6× the upper limit of normal [ULN]) and aspartate aminotransferase (AST) ≈2.5× ULN, supporting a diagnosis of CIM. Other muscle enzymes were unavailable, as was electromyography. Management consisted of steroid withdrawal, analgesics and anti-inflammatory agents, and physiotherapy. Clinical improvement occurred within 72 hours; on day 7, CK was 430 U/L (≈3.7× ULN), followed by normalization to 97 U/L at 3 months, with complete functional recovery. Conclusion: This observation illustrates that early-onset proximal weakness occurring soon after corticosteroid pulses should prompt consideration of CIM, even in the absence of EMG. In resource-limited contexts, the trajectory of CK and the response to dechallenge are decisive elements that help optimize prognosis in a timely manner.},
     year = {2026}
    }
    

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  • TY  - JOUR
    T1  - Corticosteroid-Induced Myopathy in a 10-Year-Old: A Case from Kara (Togo)
    AU  - Lehleng Agba
    AU  - Kokou Mensah Guinhouya
    AU  - Komla Nyinèvi Anayo
    AU  - Adama Ephoevi-Ga
    AU  - Komi Apetse
    AU  - Vinyo Kumako
    AU  - Damelan Kombaté
    AU  - Komi Assogba
    AU  - Mofou Belo
    AU  - Agnon Ayelola Balogou
    Y1  - 2026/01/16
    PY  - 2026
    N1  - https://doi.org/10.11648/j.cnn.20261001.11
    DO  - 10.11648/j.cnn.20261001.11
    T2  - Clinical Neurology and Neuroscience
    JF  - Clinical Neurology and Neuroscience
    JO  - Clinical Neurology and Neuroscience
    SP  - 1
    EP  - 4
    PB  - Science Publishing Group
    SN  - 2578-8930
    UR  - https://doi.org/10.11648/j.cnn.20261001.11
    AB  - Introduction: Corticosteroid-induced myopathy (CIM) remains underdiagnosed, particularly in children. Its acute form can emerge rapidly after the initiation of corticosteroid therapy, sometimes within the first few days. Identification relies on a constellation of clinical-chronological and biological arguments, together with observation of the course after steroid withdrawal. We report an acute CIM in a 10-year-old girl from Kara (Togo) to illustrate a pragmatic diagnostic approach in a resource-limited setting. Case presentation: A 10-year-old schoolgirl referred for right-sided visual loss received an initial corticosteroid course with methylprednisolone 240 mg/day for 5 days, with partial improvement. Two weeks later, following a relapse, she received a second course of methylprednisolone 1 g/day for 5 days. Four days after completing this treatment, she developed diffuse myalgias and proximal weakness with inability to raise the lower limbs and walk. Beyond the clinical picture, laboratory tests showed creatine kinase (CK) 876 U/L (≈7.6× the upper limit of normal [ULN]) and aspartate aminotransferase (AST) ≈2.5× ULN, supporting a diagnosis of CIM. Other muscle enzymes were unavailable, as was electromyography. Management consisted of steroid withdrawal, analgesics and anti-inflammatory agents, and physiotherapy. Clinical improvement occurred within 72 hours; on day 7, CK was 430 U/L (≈3.7× ULN), followed by normalization to 97 U/L at 3 months, with complete functional recovery. Conclusion: This observation illustrates that early-onset proximal weakness occurring soon after corticosteroid pulses should prompt consideration of CIM, even in the absence of EMG. In resource-limited contexts, the trajectory of CK and the response to dechallenge are decisive elements that help optimize prognosis in a timely manner.
    VL  - 10
    IS  - 1
    ER  - 

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Author Information
  • Department of Neurology, University Hospital of Kara, University of Kara, Kara, Togo

  • Department of Neurology, CHU Sylvanus Olympio, University of Lomé, Lomé, Togo

  • Department of Neurology, CHU Campus, University of Lomé, Lomé, Togo

  • Department of Neurology, CHU Campus, University of Lomé, Lomé, Togo

  • Department of Neurology, Atakpamé Regional Hospital, University of Lomé, Lomé, Togo

  • Department of Neurology, University Hospital of Kara, University of Kara, Kara, Togo

  • Department of Neurology, Kara Regional Hospital, University of Kara, Kara, Togo

  • Department of Neurology, CHU Sylvanus Olympio, University of Lomé, Lomé, Togo

  • Department of Neurology, CHU Sylvanus Olympio, University of Lomé, Lomé, Togo

  • Department of Neurology, CHU Campus, University of Lomé, Lomé, Togo

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