29th April 2024

A 72-year-old woman presents with a 2-month history of pain and stiffness in her shoulders and hips, which is worse in the mornings and improves with activity.

A 72-year-old woman presents with a 2-month history of pain and stiffness in her shoulders and hips, which is worse in the mornings and improves with activity. She also reports feeling generally unwell and has experienced unintentional weight loss. She mentions recent onset of headaches and pain in her jaw while eating. On examination, there is limited range of motion in her shoulders and hips due to pain.

Investigations:

Erythrocyte sedimentation rate (ESR): Significantly elevated

C-reactive protein (CRP): Elevated

Normal full blood count

Normal thyroid function tests

No abnormalities on X-ray

Which is the most likely diagnosis?