Inflammatory Myositis-Secondary to SLE

Area of Science:

• Rheumatology
• Dermatology
• Oncology

Background:

• Proximal muscle inflammatory myositis occurs in 5-11% of Systemic Lupus Erythematosus (SLE) patients.
• Myositis can manifest at any disease stage and may indicate internal malignancies.
• Inflammatory myopathies present diagnostic challenges, requiring careful evaluation.

Observation:

• A patient presented with seven months of generalized muscle weakness.
• The patient exhibited erythematous, hyperpigmented, scaly patches on the scalp, face, trunk, and upper limbs.
• These clinical signs suggest a potential overlap between autoimmune disease and cutaneous manifestations.

Findings:

• The case highlights inflammatory myopathy secondary to SLE.
• The possibility of myositis being a paraneoplastic syndrome associated with internal malignancy was considered.
• Diagnostic workup is crucial to differentiate between autoimmune and malignant causes.

Implications:

• Early recognition of myositis in SLE patients is vital for timely management.
• Investigating myositis can lead to the early detection of associated internal malignancies.
• Low-dose corticosteroid therapy is often effective for managing inflammatory myopathies in SLE.
• This case underscores the importance of a comprehensive approach to patients with muscle weakness and skin lesions.