The person's largest cavernous malformation is shown in the left frontal pole. This lesion has classic signs of hemorrhage (white arrows). More lesions compatible with cavernous malformations in other areas of the brain can also be observed (arrowheads).<unk> . Mammogram showing absence of the pectoralis major muscle and distortion on the left side. Right side is normal.<unk>  is usually diagnosed at birth, based upon the physical characteristics. Imaging techniques such as a CT scan may reveal the extent to which the muscles are affected. The syndrome varies in severity and as such is often not reported until puberty, when lopsided growth becomes apparent.
Poland syndrome
Möbius syndrome
Rett syndrome
Hanhart syndrome
Pallister–Hall syndrome
Robinow syndrome
Krabbe disease
Foster Kennedy syndrome