[Malignant schwannoma as a cause of Addison's disease]

Malignant schwannomas represent 2% of the tumors of the nervous sheath and they are localized, in frequency order, at the limbs, paravertebral areas and head, few cases being described at retroperitoneum. The initial clinical data might be a painful mass and/or several sensitive-motor symptoms. A case of an epithelioid malignant schwannoma, observed during the study of a patient suffering from dorso-lumbar pain and adrenal insufficiency because due to tumoral affection, which is a non-frequent manifestation, is presented. It has not been described before in national medical literature.