A 50-year-old woman presented to a clinic with a 6-month history of unilateral rhinorrhea. The patient was postmenopausal and reported observing stain on her pillow when she woke up in the morning. Further investigation The patient denied having any other symptoms, such as weight change, headache, visual disturbance, or galactorrhea. When the patient was made to bend forward, drops of clear fluid was observed to be falling from her right nostril. Upon examination, β2-transferrin was detected in the fluid. This finding was consistent with the presence of cerebrospinal fluid (CSF).
Radiograph analysis Radiograph analysis of the sinuses revealed: An enlarged sella turcica ( Fig. 1 ) CT scan of the patient revealed: The right sphenoid sinus had an air-fluid level ( Fig. 2A ). MRI analysis of the patient was also initiated ( Fig. 2B ). Clinical procedures An endoscopic transnasal…