Systemic exertion intolerance disease associated to neuroendocrine dysfunction and cortical atrophy: a case report

Scarce evidence about the organic and functional abnormalities of systemic exertion intolerance disease (SEID) is found in literature and the pathophysiology is still unclear.

Following the CARE Guidelines, this case report describes a patient with a 5-year history of nonspecific symptoms, lately recognized as SEID.

Low serum thyroid- and adrenocorticotropic stimulating hormone levels, and 24-h urinary cortisol excretion almost twice the upper limit were detected. Computed tomography scan found significant cortical atrophy. Low-dose modafinil improved the clinical outcome, added to nonpharmacologic approach.

To ascertain an accurate SEID diagnosis and treatment are a challenge in daily clinical practice, that must be engaged based in clear methods and good practice recommendations. Thus, family practitioners should be aware of this diagnosis.