Dear friend, welcome to HCM!
Degenerative changes in the spine are coomon at this age and indicate wear and tear with age.
Could also indicate arthritic process.
Prominent bronchovascular markings may be a normal feature at this age or indicate increased pulmonary pressure
Depends on the associated conditions.
Was he a smoker? any bronchitis (cough
, sputum, breathlessness?)
What does the 2D echo (if done during health check) say about pulmonary/ right heart pressures?
If he does not have any symptoms, there is no worry and no treatment needed.
Take care and please keep me informed of your progress.
I hope to have answered your query satisfactorily.