A person complaining of the symptoms of inflammation and soreness in the spine and hips, as well as a skin rash, would most likely be diagnosed with

Inflammation and soreness in the spine and hips can occur with psoriatic arthritis, which may also cause the characteristic skin rash of psoriasis. Ankylosing spondylitis can affect the spine and hips, but the rash points more strongly to psoriatic arthritis.

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