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Background: We present a rare case of a probably poliostotic fibrous dysplasia of the clivus in a young woman with a clival and vertebral involvement. We also compare our case with data reported in tables that include all cases of clival fibrous dysplasia present in literature., Case Description: Thirty-year-old women presented with headache. We reviewed radiological and clinical literature before surgery. It was possible to perform a preoperative diagnosis of fibrous dysplasia of the clivus so it was possible to adopt a minimally invasive surgical approach on the clivus. The diagnosis of fibrous dysplasia of the clivus was confirmed after the operation. As the patient was asymptomatic, we did not operate on the vertebral lesion which was stable after 1 year., Conclusion: We draw the conclusion that it is possible to obtain a correct preoperative diagnosis of fibrous dysplasia based on magnetic resonance imaging and computed tomographic scans; this makes it possible to avoid major surgical operations. The reported case is particularly interesting because apart from the clival fibrous dysplasia, a vertebral involvement of the same type can be assumed; this association has never been reported in literature.

Background: The occurrence of cerebrospinal fluid fistulas of the frontal sinus after anterior skull base surgery is not rare. The extracerebral techniques to repair cerebrospinal fluid fistulas are often used, especially because they avoid open-air surgical operations., Methods: A percutaneous CT-guided technique to close postsurgical cerebrospinal fluid fistulas of the frontal sinus in three patients after anterior skull base surgery is presented in this report. Ten millimeters of human fibrin glue was injected into the frontal sinus through one of the burr holes of the bone flap by an 18-gauge spinal needle., Results: After an average follow-up period of 2.8 years, all three patients are in excellent general and neurological conditions and have not shown any further signs of rhinoliquorrhea., Conclusions: The presented percutaneous CT-guided technique can be considered a valid and harmless solution to closer small or moderate cerebrospinal fluid fistula that occurred after anterior skull base surgery.