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• n  butterfly-shaped bone at the base of the skull

• These bony caverns are called the frontal, maxillary or antrum, ethmoid and sphenoid sinuses.
• As a "ham" in a small Western Union office in the 1890s here in the sphenoid tip of the Old Dominion, I coincidentally graduated from high school in 1899 and started looping .
• He has even been known to drain his own sphenoid cavity, an intricate and highly painful process.

• sphenoid bone
• os sphenoidale

News & Articles

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• New Study Affirms In-Office Multi-Sinus Balloon Dilation is an Effective, Well Tolerated Treatment Option for Chronic ...
  A new study published in the American Journal of Rhinology and Allergy demonstrates the benefits of in-office balloon dilation for sufferers of chronic sinusitis. Results reported in “In-office, multisinus balloon dilation: 1-Year outcomes from a prospective, multicenter, open label trial” show patients with disease in the maxillary, frontal and sphenoid sinuses can be successfully and ...
  Feb. 17, 2014 - Business Wire via Yahoo! Finance