Primary myocardial involvement is common in systemic sclerosis. There is growing evidence strongly suggesting that this involvement is linked to repeated focal ischemic lesions causing irreversible myocardial fibrosis. It can affect all heart structures. We report the case of a 65 years old male patient, without any personal medical history, admitted for inaugural right heart decompensation. The diagnosis of restrictive cardiomyopathy is based mainly on the following criteria: on echocardiography, hypertrohy of the right ventricle with alteration of the longitudinal systolic function, dilation of the right atrium, with good overall contractility. On right cardiac catheterization: elevation and equalization of the telesystolic pressures of the right atrium, right ventricle, and pulmonary artery with appearance of dip plateau on the right ventricle curve. Scleroderma was evoked considering following statements: the presence of Raynaud's phenomenon, unknown by the patient (presence of dermal sclerosis with pericapillary oedema and capillary dystrophy on capillaroscopy), cutaneous involvement (presence of perivascular and perineural mononuclear infiltrates, with collagen fibers increased in number and thickness), pulmonary involvement (diffuse bilateral interstitial lung disease) and renal involvement (moderately impaired function and positive proteinuria). The concept of cardiac dysfunction in scleroderma and other rheumatologic conditions has received new interest with the advent of newer non-invasive imaging techniques. Therfore, it would be necessary to search the cardiac involvement especially subclinical one in this type of system disease, as well as to confirm the systemic origin in front of certain forms of cardiopathies in particular restrictive cardiomyopathy.

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