Syndrome Doege-Potter is a paraneoplastic syndrome in which hypoglycemia is the 
result of tumors producing insulin growth factor-like (IGF-II) it is most often 
solitary fibrous tumor of the pleura (TFSP). These are rare and may be 
discovered incidentally, during non-specific respiratory symptoms or during 
hypoglycemia. Hypoglycemia occurs in tumors of large volume and it disappears 
after surgery, which is the treatment of choice for a permanent cure in most 
cases. We present a case of Doege-Potter syndrome whose interest is to consider 
the TFSP as a cause of hypoglycemia in patients with pleural tumors.