Multidisciplinary Approach to Anti-MDA5 Antibody-positive Dermatomyositis Associated with Rapidly Progressive Interstitial Lung Disease
Overview
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A man in his 40s was referred to our centre with rapidly progressive interstitial lung disease for lung transplant evaluation. Three months prior to his presentation he had developed periorbital oedema and discolouration, papules over the dorsal aspect of his metacarpophalangeal (MCP) joints and mucocutaneous ulcerations over the dorsum and palmar aspects of his MCPs. He had also been experiencing progressive shortness of breath. Based on the characteristic appearance of the cutaneous lesions, lack of muscle weakness on clinical examination, rapid progression of the interstitial lung disease together with presence of melanoma differentiation-associated gene 5 (MDA5) antibodies a diagnosis of anti-MDA5 dermatomyositis was made. Prompt treatment was initiated with aggressive combined immunomodulatory therapy that resulted in significant improvement in symptoms.
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