We report the case of a woman who had premature menopause, adrenal insufficiency and hypothyroidism by peripheral gland lesion, all most probably due to an autoimmune disorder, and who subsequently developed primary pulmonary arterial hypertension. The causes of this hypertension are ill-defined, but an autoimmune origin has often been envisaged since primary pulmonary arterial hypertension is not unfrequently associated with connective tissue diseases. Its association with an autoimmune polyendocrinopathy has only been reported, to our knowledge, on four occasions; in all 4 cases the thyroid gland was involved, and a connective tissue disease was present in 3 of them. Our case, which includes adrenal insufficiency and premature menopause is, as far as we know, unique. The possible link between these various diseases is their autoimmune nature, in which case primary pulmonary arterial hypertension would belong to the category of organ-specific autoimmune diseases. Our case supports the hypothesis that a number of isolated primary pulmonary arterial hypertensions could be of autoimmune origin.
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