An apparatus and method for medical imaging, particularly for mammography, wherein a body organ, such as a breast, is exposed to X-rays and the X-rays are collected after attenuation through the object. The bezel defines a circular-shaped recess, and N pairs of support arms are positioned on the inner sidewall of the recess. Certain of the useful compounds are fatty acid esters that are predicted inhibitors of nematode delta-12 fatty acid desaturases and can be, for example, from C16 to C20 in length.