امرأة عمرها ٥٢ سنة مصابة بالسكري، عندها ألم وتيبس في الكتف الأيمن منذ ٤ أشهر، ولا تستطيع تحريكه في أي اتجاه حتى بمساعدة الفاحص. الأشعة طبيعية. ما الأرجح؟

A 52-year-old woman with diabetes has had pain and stiffness of the right shoulder for 4 months and cannot move it in any direction, even with the examiner’s help. X-ray is normal. What is most likely?

1. Septic arthritis
2. Acute rotator cuff tear
3. Frozen shoulder
4. Posterior shoulder dislocation

Answer: C) Frozen shoulder. Loss of both active and passive movement in all directions with a normal X-ray indicates frozen shoulder, commoner in diabetes, improving slowly with physiotherapy and analgesia.