Background: Rathke's cleft cyst (RCC) is a not-so-common pituitary developmental disorder, it is a benign growth found on the pituitary gland in the brain, specifically a fluid-filled cyst in the posterior portion of the anterior pituitary gland. Symptomatic cysts are very rare. With only few cases have been documented in the literature. Aim of the work: this study aimed to assess the effect of corticosteroids on patientswithsymptomatic Rathke's cleft cyst. Methodology: we reported a rare case of a 21 years old male patient, who was referred from a primary health center to the endocrine clinic with the complain of decreased visual acuity, blurred vision, and headache. On examination, there were no signs of puberty, no secondary sexual hair, truncal and generalized obesity. The fundus examination showed bilateral temporal pallor, with pale disc and papilledema. On the basis of symptoms and examination of the patient we suspected a lesion in the brain obstructing the optic pathway and therefore suggested MRI. Conclusion: this case led us to conclude that Rathke's cleft cysts should be considered in the differential diagnosis of patients who present with adrenal insufficiency and that the cysts can be reduced by glucocorticoids.