[Pheochromocytoma or Cushing's syndrome? About one case].

Pheochromocytoma with ectopic ACTH secretion is very unusual. The diagnosis is difficult. This case report illustrates the necessity of a thorough endocrinological investigation. In this case, normalization of biological result just after tumorectomy has confirmed the diagnosis. In addition, diagnosis needs also medical imaging and eventually immunostaining on resected tumor. Clinical symptoms and biological results presentation are more serious than pheochromocytoma without ACTH secretion or than Cushing disease. In this kind of situation, the removal of tumor remains the main treatment and a symptomatic treatment has to be initiated before surgery.