Dermatomyositis is a rare chronic autoimmune and inflammatory disease that affects the skin and striated muscles. Its prognosis is linked to visceral involvement (lungs, heart, and oropharyngeal region) and to the possible presence of associated cancer. The implementation of the research will allow identification of incident cases of dermatomyositis in Guadeloupe and the characterization of the disease in the overseas population, in the absence of data in the literature.
Patient with a diagnosis of dermatomyositis according to the 2003 ENMC criteria
Patient with parents or grandparents originating from the Caribbean arc
Patient aged 16 years or older
Patient residing in Guadeloupe
Patient who started treatment with intravenous immunoglobulins, corticosteroids, or immunosuppressants within the month prior to the diagnosis of dermatomyositis
Patient under legal protection (guardianship or trusteeship) or deprived of liberty