50f Lower backache & pain radiating to both thighs x 1yr

63y/m C/o Hib and lower extermity pain and burning and numbness sensation since 6 month. No h/o dm htn No past medical history Vital normal Rx Dx

60 yr m suffering from back pain since 2 months and last 2 days he has more pain and unable to walk properly he is taking Vitamin b12 inj alternate day upto 5 inj. and calcium vitamin D3 tab regularly since last 15 Days what it's Rx and Dx .

Pain Weakness Loss of appetite Heavy smoker Cough Chest block

Pt is elderly male came with co left neck pain and left hand pain with paraesthesia in left palm Discuss diagnosis and management drs