We report a case of systemic lupus erythematosus in an adolescent with AS hemoglobinopathy, hospitalized from September 26 to October 20, 2018 in the internal medicine department of the Sylvanus Olympio teaching hospital of Lomé. It is a 17 years old girl, with a family history of sickle cell disease, hospitalized for a prolonged fever. The physical examination on admission noted: A fever at 40°C, a deterioration of the general state, a puffiness of the face with edema of the lower limbs, firm

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... nd painful adenopathies under chin and cervical, purpura, diffuse alopecia and non-deforming bilateral polyarthritis affecting the metacarpophalangeal and proximal interphalangeal joints. The biological assessment revealed an inflammatory syndrome, 24h proteinuria = 4,690 mg and hemoglobin AS, the native anti-DNA antibodies higher than 380 IU/ml. The diagnosis of systemic lupus erythematosus was made on the basis of at least 4 of the 11 criteria of the American College of Rheumatology 1997. The clinical manifestations of the lupus and AS hemoglobinopathy association in our patient are characterized by the absence of the major cutaneous-mucosal signs in particular the malar rush in butterfly wing, discoid lupus, photosensitivity and mouth or nasopharyngeal ulcerations.