Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses — Stock photos

"Bacterial sinusitis, computer illustration. The sinuses are membrane-lined air-filled spaces in the bones of the face. The frontal sinuses are above the eyes. Below these are the many lobed ethmoid sinuses and behind them the sphenoid sinuses" is an authentic stock image by ScienceRF. It’s available in the following resolutions: 1600 x 900px, 2600 x 1463px, 7111 x 4000px. The minimum price for an image is 49$. Image in the highest quality is 7111 x 4000px, 300 dpi, and costs 449$.