### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
i am 53man i suffer from weaknessin my shoulders and thighs and leg pain and ankle pain and ankle swelling legswelling , heel pain , thigh tingling leg tingling , dizziness , mild low back pain , last year i went to a romatologist doctor , he tested my iegs bon and recognised me with anklosing spondylitis , and for medication suggested ; prednisolon , klorokin, methotroxat ,( also ihave hip pain , excess saliva, feet hair loss, knee psoriasis , toenail deformity , night sweat , hypertension , varicos vein , etc ) after using named medicine ipain and edem vanish , but some infections like impetigo , sinusit throath pain come back , and an orthoped professor said that you dont have ,AS, and told , you have spinal problem , i think ihave AS , with quada equna . would you please tell me your Idea to my illness thanks a lot MEHDI from IRAN . ESFAHAN

### output:

Hi, The peculiar findings for ankylosing spondylitis are low back pain and stiffness, limited chest expansion, spinal deformities and repeated chest infections, while caudal equine is characterized by loss of sensation and weakness in back of buttocks and thighs along with lack of bladder and bowel control. As per your symptoms. It appears more to be a case of spinal nerve root compression either because of deformity or disc herniation. You need to get thoroughly examined and investigated, along with a screening MRI of spine to reach out for an exact diagnosis. Take care. Hope I have answered your question. Let me know if I can assist you further. 