A rare case of cerebrospinal fluid rhinorrhea post external

Cerebrospinal fluid (CSF) leakage is an uncommon but significant complication of orbital and rarely lacrimal surgery. We report a rare case of CSF rhinorrhea following external dacryocystorhinostomy (DCR) surgery. A 38-year-old healthy lady was diagnosed to have chronic dacryocystitis for which right side external DCR was done. At the evening of 1st post-op day, the patient noticed a discharge of clear fluid coming through the right nostril, in sitting posture. The fluid was sent for biochemical analysis. Based on clinical and biochemical tests of fluid, a diagnosis of iatrogenic CSF rhinorrhea was made. Contrast enhanced computed tomography and computed tomography cisternography failed to reveal any site of active leakage...