A Rare Presentation of Intrasellar Mucocele Post-transsphenoidal Resection of a Non-secreting Pituitary Macroadenoma.

An enlarging sphenoid sinus mucocele can facilitate the growth of an intrasellar sinus mucocele. This subsequently leads to pituitary gland compression and endocrine abnormalities. We report the case of a 54-year-old man who underwent transsphenoidal resection of a non-secreting pituitary macroadenoma. Twenty years later he presented with headache, visual disturbances, erectile dysfunction, and poor libido and was diagnosed with a large sphenoid sinus mucocele that consequently extended into the sellar region. Based on the literature review, isolated intrasellar sinus mucocele post-transsphenoidal endoscopic surgery has been reported once. This is the first case of an intrasellar mucocele post-transsphenoidal resection to present with endocrine compromise on top of the compressive pituitary stalk symptoms.