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Differences in skull base thickness exist in SCSF patients, but whether this predisposes to such leaks or is a consequence of the underlying pathophysiology remains unknown. The endoscopic endonasal approach provides a highly effective means of repairing such leaks with success rates comparable with the endoscopic repair of other leak types. Adjuvant measures including weight reduction, lumbar drain, and acetazolamide use may increase success rates and should be considered in their management.

This study provides objective evidence that LRS CSF leaks are secondary to erosions from intracranial hypertension and refutes the myth regarding a congenital origin from Sternberg's canal.

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Liposarcomas of the head and neck are usually early stage, low grade, and with fewer nodal metastases than conventional liposarcomas. DSS and OS were significantly greater for liposarcomas of the head and neck.

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