Amyopathic dermatomyositis (ADM) is recognized as a distinct subtype of dermatomyositis where there is a typical skin rash of classic dermatomyosiytis but without muscle involvement.
This form may be further divided into
- anti-melanoma differentiation-associated gene 5 (MDA5) antibody-positive clinically amyopathic dermatomyositis
- anti-melanoma differentiation-associated gene 5 (MDA5) antibody-negative clinically amyopathic dermatomyositis
- interstitial lung disease:
- according to one study, malignancy of the genitourinary organs (most common), aerorespiratory organs and breast were the most commonly observed solid organ tumors 2.
- 1. T. Suda, T. Fujisawa, N. Enomoto, Y. Nakamura, N. Inui, T. Naito, D. Hashimoto, J. Sato, M. Toyoshima, H. Hashizume, K. Chida. Interstitial lung diseases associated with amyopathic dermatomyositis. (2006) European Respiratory Journal. 28 (5): 1005. doi:10.1183/09031936.06.00038806 - Pubmed
- 2. Udkoff J, Cohen PR. Amyopathic Dermatomyositis: A Concise Review of Clinical Manifestations and Associated Malignancies. (2016) American journal of clinical dermatology. 17 (5): 509-518. doi:10.1007/s40257-016-0199-z - Pubmed