Comprehensive Case Analysis: Diagnosing and Managing Myositis in Newly Diagnosed Systemic Lupus Erythematosus Patients in Indonesia

Authors

  • Nabila Abiyasa Putri 1. Internal Medicine Specialist Study Program, Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia. 2. Internal Medicine Specialist Study Program, Department of Internal Medicine, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia.
  • Awalia Awalia Division of Rheumatology, Department of Internal Medicine, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia

Keywords:

Systemic Lupus Erythematosus (SLE), Myositis, Muscle Biopsy, Electromyocardiography

Abstract

An 18-year-old female with Systemic Lupus Erythematosus (SLE) presented with bilateral thigh pain, fever, and diarrhea three days before admission. Diagnosed with SLE one month earlier, she reported prior symptoms, including joint pain, malar rash, hair loss, and hyperpigmented lesions. Initial investigations revealed elevated transaminase levels (AST 355, ALT 132), positive ANA, decreased complement levels (C3 68, C4 16.8), and raised creatine kinase (619). A muscle biopsy confirmed myositis. The patient was treated with immunosuppressant (a combination of steroids and hydroxychloroquine) and supportive therapy. By the eighth day of hospitalization, her symptoms, especially thigh pain, resolved. Electromyocardiography was done, and the results were normal, indicating therapeutic success. This case highlights the importance of prompt diagnosis and management of myositis as a rare SLE manifestation to achieve favorable outcomes.

Author Biographies

Nabila Abiyasa Putri, 1. Internal Medicine Specialist Study Program, Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia. 2. Internal Medicine Specialist Study Program, Department of Internal Medicine, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia.

Department of Internal Medicine, Faculty of Medicine of Universitas Airlangga, Dr. Soetomo General Hospital Surabaya, Indonesia

Awalia Awalia, Division of Rheumatology, Department of Internal Medicine, Dr. Soetomo General Academic Hospital, Surabaya, Indonesia

Rheumatology Division, Department of Internal Medicine, Faculty of Medicine of Universitas Airlangga, Dr. Soetomo General Hospital, Surabaya, Indonesia

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Published

2026-04-09

How to Cite

Abiyasa Putri, N., & Awalia, A. (2026). Comprehensive Case Analysis: Diagnosing and Managing Myositis in Newly Diagnosed Systemic Lupus Erythematosus Patients in Indonesia. Acta Medica Indonesiana, 58(1), 94. Retrieved from https://www.actamedindones.org/index.php/ijim/article/view/2990