The answer is Marfan syndrome. This is a genetically transmitted connective tissue disease with disordered collagen formation, causing multiple systems to be involved.
The left image shows a dilated aortic root - aortic pathologies in Marfan syndrome include aortic regurgitation, coarctation, dissection and aneurysm formation.
The right image shows a lumbosacral junction acute kyphosis and scalloping of the posterior aspect of the vertebral bodies, a sign of dural ectasia.
There are many more imaging findings in Marfan syndrome - this Radiographics article provides an excellent overview of the multisystem manifestations.